SlideShare a Scribd company logo
1 of 16
Download to read offline
IWC
     Environmental Flows and Management
                  Scenarios

                                  December 2009


                             Prof. Angela Arthington
                   Australian Rivers Institute, Griffith University
                            Room 1.09C, Building N13
                                    3735 7403




       Rivers and floodplains are the world’s most
                threatened ecosystems




                                                 Global declines in river health
                                                 Loss of freshwater biodiversity
                                                 Declining food fisheries
                                                 Loss of human cultural values




  Impacts on river flow regimes
                                                         surface and groundwater
    levee banks on floodplainst                                 abstraction




                                                                            weirs




                                                                         impacts of
                                                                         water grids
         high value                                                       and IBTs
     free-flowing rivers
Minimal flow regime change        dam release rules




                                                                                       1
Environmental Flows
                                      Environmental flows describe
                                      the quantity, timing and quality
                                      of water flows required to
                                      sustain freshwater and
                                      estuarine ecosystems and the
                                      human livelihoods and well-
                                      being that depend upon th
                                      b i th t d        d      these
                                      systems




                                                  Brisbane Declaration 2007
                                            International Environmental Flows
                                         Conference, Brisbane, September 2007
                                           750 delegates from over 50 countries




               Management Scenario 1

        Determining e-flows for a new reservoir
              on a river like the Li Jiang

•   Rapid assessment, with limited resources and data
    DRIFT Methodology
    Downstream Response to Imposed Flow Transformation

•   Comprehensive assessment, with time to collect field data
    ELOHA Framework
    Ecological Limits of Hydrologic Alteration




               Management Scenario 2

     Prioritising e-flows for multiple assets when there is limited
               water available because of other demands

    Which wetlands should be given water and how much, when,?
                             g

          Water allocations to sustain commercial fisheries

•   Rapid assessment, with limited resources and data
    Flow Restoration Methodology

•   Comprehensive assessment, with time to collect field data
    ELOHA Framework




                                                                                  2
Ecological Significance of Natural Flow Regime

1. Poff et al. 1997. Natural Flow Regime Paradigm

2. Bunn & Arthington 2002
Basic principles and ecological consequences of altered flow
   regimes for aquatic biodiversity

3. Nilsson & Svedmark 2002
Basic principles and ecological consequences of changing water
   regimes: riparian plant communities

4. Pinay et al. 2002
Basic principles and ecological consequences of changing water
   regimes on nitrogen cycling in fluvial systems

5. Naiman, Bunn et al. 2002
Legitimising fluvial ecosystems as users of water: An overview




                  Ecological Significance of Flow
                  Natural Flow Regime Paradigm
                         Poff et al. (1997)

•   The ecological structure and function of flowing water systems depends
    largely on their natural dynamic flow regime

•   Stream flow is a “master variable” that influences physical and chemical
    characteristics, e.g.

          - water quality
          - sediment regime and substrate characteristics
          - channel morphology, habitat structure and diversity
          - energy sources that fuel the aquatic food web

•   Stream flow characteristics influence the distribution, abundance and
    biotic interactions of river and floodplain species

•   Alteration of the natural flow regime of a river can have physical,
    chemical and ecological impacts




      Rivers differ in their natural flow regimes


           Mekong                             0.8   Darling
     30
                                              0.6
     20
                                              0.4
     10
                                              0.2
     0
                                              0


                                              6
      8     Mississippi                             Murray
      6                                       4
      4
                                              2
      2
      0
                                              0

            Columbia                          8
                                                    Cooper Creek
     20                                       6

                                              4
     10
                                              2

      0                                       0




                                                                               3
Components of natural flow regimes

     Natural Flow Regime Paradigm - Poff et al. (1997)

     •    Magnitude of flow – discharge Q

     •    Frequency of occurrence – relates to a particular magnitude,
              e.g.
              e g zero flow, or 100 year flood etc
                        flow             flood,

     •    Duration
               e.g. number of days of low flow, or number of days the
               floodplain is inundated, or composite values from flow
          duration     curve

     •    Timing, seasonality and predictability

     •    Rate of change, or flashiness




            Bunn, S.E. and Arthington, A.H. (2002)
     Basic principles and ecological consequences of altered
      flow regimes for aquatic biodiversity. Environmental
                     Management 30: 492-507

1.       Flow is a major determinant of physical habitat in streams, which
         in turn is a major determinant of biotic composition

2.       Aquatic Species have evolved life history strategies primarily in
         direct response to the natural flow regime

3.       Maintenance of natural patterns of longitudinal and lateral
         connectivity is essential to the viability of populations of many
         riverine species

4.       The invasion and success of exotic and introduced species in
         rivers is facilitated by the alteration of flow regimes




                  Flow-ecology principles
         Bunn & Arthington (2002) Env. Management

                         Aquatic biodiversity and natural flow regimes
                     Principle 3
             lateral connectivity                                                         Principle 1
             longitudinal connectivity                                channel form
                                                                      habitat complexity            biotic diversity
                                                                      patch disturbance
                                     access to     spates
                                     floodplains


                                                            variability                    Principle 2
                                     dispersal                                       Life history patterns
                         Discharge




                                     triggers                                        • spawning
                                                      reproductive triggers          • recruitment

                                                              seasonality
                                                              predictability
                                                                               stable baseflows
                                                                                                        drought


                                                   Time
                                                   Principle 4
                                       natural regime discourages invasions




                                                                                                                       4
Macro-scale                   Flow creates and maintains:
         (channel form)
                                          •channel form - headwater tributaries,
                                                 main channels, lowland floodplains

                                                                   •hydraulic habitat units
                                                                          - riffles, pools,
                                                                          floodplain wetlands
                                                 Meso-scale
                                               (hydraulic units)


                                                                                  Micro-scale
                                                                                  (patches within
                                                                                  hydraulic units)
•patches of habitat
       - undercut banks, boulders
       - gravel & sand beds,
       - aquatic plants
       - woody debris – snags
       - leaf litter packs
      Images: Mark Kennard, Griffith University




                                                                  Fish habitat
                                  flow                       preferences in riffles,
                                                                runs and pools
                      run
                                           riffle
   • intermediate # species
   • streamlined body
                                     • few species                  pool
                                     • streamlined body form        • many species
                                                                    • diverse body shapes




 Images: Mark Kennard & Brad Pusey, Griffith University




                                                                           Position in
  Rainbowfish                                                            Water Column
  (open water schooling species)
                                                                        Purple spotted gudgeon
                                                                           (benthic species)
Water surface

            0.2

            0.4
Relative
water       0.6
depth
            0.8

              1

                  0          10           20          30
Stream bed
                                                              0            20          40            60
            Frequency (% of individuals)



     Images: Mark Kennard & Brad Pusey, Griffith University




                                                                                                          5
Substrate composition                                  Frequency of use
                                         30

                                         20
         Availability
  30
                                         10
  20
                                             0
  10


   0




                                   30
       Substrate composition
                                   20

                                   10

                                    0
 Images: Mark Kennard &
 Brad Pusey, Griffith
 University




  Microhabitat structure
                                    Frequency of use

         Availability                   20                      Juveniles
  15
                                                                Adults
  10                                    15

   5
                                        10
   0

                                         5



                                         0


       Microhabitat structure


 Images: Mark Kennard &
 Brad Pusey, Griffith University
                                                  Microhabitat structure




        Impacts of flow regime alterations that
       change habitat downstream of dams and
           g
                         weirs




                                                                            6
Impacts of water loss and habitat change
        downstream of dams and weirs




                Sudden loss of flow and water depth, fish
                               stranding




      The Lower Murray – a River of Lakes




       Weir pools favour lentic Gastropods. River gastropods decline.
        Caused by loss of river habitat & food resources (biofilms)




             Blue-green algal blooms in the
                Darling River 1990-1991



Caused by:

• Stable low flows
• Loss of flushing flows
• Elevated nutrients
• Ample light
• Suitable water temps
• Less grazing pressure




                                                                        7
Brisbane River d/s Wivenhoe Dam:
                     Unregulated vs Regulated Flow


                    180000                                                                                                 300




                                                                                                                                 CV of monthly flow
                    160000                                                                                                 250
                    140000
          Flow ML




                    120000                                                                                                 200
                    100000                                                                                                 150
                     80000




                                                                                                                                       m
                     60000                                                                                                 100
                     40000                                                                                                 50
                     20000
                         0                                                                                                 0
                                            MAR




                                                                                                     OCT
                                                                                      AUG




                                                                                                             NOV
                                                    APR



                                                                    JUN
                                                             MAY
                                   FEB
                             JAN




                                                                                JUL




                                                                                                                     DEC
                                         Mean Monthly Unregulated                            SEP
                                                                                      Mean Monthly Regulated
                                         Coefficient of Variation Unregulated         Coefficient of Variation Regulated


           • Reduced mean monthly flows
           • Reduced flood peaks & “stepped” flow releases
           • Elevated & more stable low flows
           • Loss of flow variability at most flow magnitudes




Elevated, more stable low flows create habitat for
      dense, extensive aquatic plant beds




                                                                   Impacts:
                                                                   • altered water quality, e.g. DO
       Red water
                                                                   • habitat much less diverse
         milfoil
                                                                   • lower diversity of invertebrates and fish
                                                                   • reduced flood conveyance




                       Effects of Natural Flow Regime
                           on Riparian Vegetation

Before Flow Regulation
                                                                                                               Lateral &
                                                                                                               longitudinal
Zonation of vegetation                                                                                         seed dispersal by
by flood frequency &                                                                                           hydrochory
duration
e.g. herbs, shrubs, trees


                                                                                                                    Biologically active
   Usually diverse                                                                                                  zone
   flora in comparison                                                                                              e.g. decomposition
   to surrounding
   terrestrial system




                           Spatially and temporally heterogeneous
                         plant community composition and structure




                                                                                                                                                      8
Hydro-
         Hydro-ecological relationships: riparian
                      vegetation

             Typical zonation of riparian vegetation for SEQ

                                                                                   Mature grassy open
                                                                                eucalypt (E. tereticornis)
                                            Tall She-oak (Casuarina             & bloodwood (Corymbia
 Along the channel verge there is a        cunninghamiana) riparian               tessellaris) woodland
  stable band of reophytes such as
     bl b d f        h          h        forest with mesic subcanopy
 Watergum (Tristaniopsis exilliflora),    species on channel terraces
        Callistemon viminalis.
   & the Mat rush (Lomandra sp.)




               Effects of changing the Flow Regime
                      on Riparian Vegetation
   After Flow Regulation
           by Dam
                                                                        Barriers to seed dispersal
                                                                        by hydrochory, particularly
Streamward migration                                                    affecting short-floating seeds
of vegetation zones,
i.e. replacement of
hydrophytic species by
  y p y       p      y
more mesic/ xeric species.
e.g. encroachment of forest                                                   Decomposition rates
                                                                              decline with flood
                                                                              elimination




                                        Homogenisation of
                              plant community composition & structure




    Severe effects of reduced flood frequency on
        floodplain wetlands and waterbirds




Wetland loss in Australia:

• 90 % loss in M-D Basin
               M-
• 75 % loss on Swan Coastal Plain, WA
• 50 % loss NSW coastal rivers




                                                                                                             9
Principle 2
                                    Life History Patterns
                       Aquatic biodiversity and natural flow regimes
                   Principle 3
           lateral connectivity                                                          Principle 1
           longitudinal connectivity                                 channel form
                                                                     habitat complexity            biotic diversity
                                                                     patch disturbance
                                    access to     spates
                                    floodplains


                                                           variability                    Principle 2
                                    dispersal                                       Life history patterns
                        Discharge




                                    triggers                                        • spawning
                                                     reproductive triggers          • recruitment

                                                             seasonality
                                                             predictability
                                                                              stable baseflows
                                                                                                       drought


                                                  Time
                                                  Principle 4
                                      natural regime discourages invasions




Life History and Recruitment Strategies
                                                             Low flow recruitment
                                                             Spawn during stable low
                                                             flows in spring & summer,
                                                             window of opportunity to
                                                             access habitat/food for larval
               N. Armstrong                                  fishes

No flow recruitment
                                                                                                                 N. Armstrong
Spawning in standing water bodies
with no flow, e.g. river pools,
waterholes on floodplains




    Merrick & Schmida                                             Flow / flood pulse recruitment
                                    Spawn during rising water levels or floods in spring & summer,
                                      recruitment enhanced by backwater & floodplain inundation




Catfish spawns into a ‘nest’ in well-oxygenated water,
water level fluctuations can inhibit spawning
                                                                                 Eel-tailed catfish




                                                                                                                         R. Kuiter




                                     R. McDowall




                                                      G. Schmida




                                                                                                                                     10
Flows trigger spawning in Clanwilliam Yellowfish


                                                                  Spawning stimulated
                                                                     by flow cues below
                                                                     dams

                                                                     Larval growth
                                                                     requires warm water
                                                                     and diverse food
                                                                     items




                                                                           Skelton 1993




Seasonal reproductive cycles of fish species
     in the Fitzroy River system, QLD

     A. ag
     A. per
     Ar. g.
     G. apr.
          p
     H. lep.
     Hyp. c.
     M. mog.
     N. ater
     Ox. lin.
     P. gr.
     Scl. l.
     Sc. h.
     T. tan.
                J     A    S    O        N   D     J   F   M    A      M     J
                    low & stable flows       wet season
                    Spring temps             Summer temps




       Inversion of normal seasonal flow
           pattern below large dams


                                                 Flow and temperature
                                                 patterns no longer match

                                                 Loss of fl d fl
                                                 L     f flood flows

                                                 Fish spawning failure

                                                 Loss of wetland biodiversity
                                                         and functions


      Median monthly flows
   Murray River at Albury, NSW




                                                                                           11
Flow effects on different processes during a
                  plant life cycle

Ecological responses to various temporal and spatial scale of flow disturbance



              Flowering, seed
                                                            Adult
              set and release                                                                   Growth and
                                                                                                maturity
                                                                                                       y



                                   Seed                                                Juvenile

        Dispersal

                      Germination                                                         Establishment
                                                          Seedling
                                                Predation, competition




                                                 Principle 3
                     Movement and migration

                      Aquatic biodiversity and natural flow regimes
                  Principle 3
          lateral connectivity                                                          Principle 1
          longitudinal connectivity                                 channel form
                                                                    habitat complexity            biotic diversity
                                                                    patch disturbance
                                  access to      spates
                                  floodplains


                                                          variability                    Principle 2
                                  dispersal                                        Life history patterns
                      Discharge




                                  triggers                                         • spawning
                                                    reproductive triggers          • recruitment

                                                            seasonality
                                                            predictability
                                                                             stable baseflows
                                                                                                      drought


                                                  Time
                                                 Principle 4
                                    natural regime discourages invasions




                                                                                     Movement and
                                                                                         Migration




                                                                                                Merrick & Schmida 1984




                                                    Freshwater Fishes of North-Eastern Australia
                                                           Pusey, Kennard & Arthington 2004




                                                                                                                         12
Giant Mekong Catfish
   (2.35 m and 260 kg)




                                                            “Construction of
                                                           mainstream dams
                                                              that obstruct
                                                          spawning migrations
                                                            may seal its fate”

                                                            Dudgeon, 2001
    Overfishing has caused failure of the
                  fishery




                                    • Fish return to
                 Flood March
                 2000
                                         waterholes       Importance of
                 13,471 km2                                 connectivity

                                                              Bust
                                                              • Drying waterhole
                                                              • Fish mortality 93%

                            Connectivity


                                           Connectivity

 Boom
• Floodplain inundation                                       Channel flows
• Fish breeding                                               • Connectivity
• Movement of all life stages
                                                              • Movement
          to floodplain
• Growth and juvenile                                         • Fish breeding
          recruitment




11/12 native species move from river to inundated
floodplains to feed and grow




                                                                                     13
Water flowing to sea
                                                                                                                       is not “wasted”




                                   1600

                                   1400
                                                                     Total fish catch
                                   1200
Total catch (tonnes)
  Annual flow (GL)




                                   1000
                                                                                                                                   Fish catch in Moreton
                                    800
                                                                                                                                   Bay vs Logan River
                                    600

                                    400
                                                                                                                                   flow
                                    200
                                                               Total flow
                                         0                                                                                             Loneragan & Bunn 1999
                                             1945       1950         1955        1960         1965       1970          1975
                                                                                                                                       Aust. J. Ecol. 24: 431-440
                                                                              Year




                                                                                      total
                                                                                                                            Prawn catch in Logan
                                   100                                                                                      estuary vs total summer
                  Catch (tonnes)




                                                                                          kings
                                                                                                                            flow
                                    10


                                                                                                                              Mechanisms:
                                     0                                                                                        • catchability
                                                    10 000                  100 000                1 000 000
                                                                                                                              • habitat & food resources
                                                               Summer flow (ML)
                                                                                                                              • life history




                                                                                               Principle 4
                                                      Alien and translocated species

                                                                Aquatic biodiversity and natural flow regimes
                                                            Principle 3
                                                    lateral connectivity                                                               Principle 1
                                                    longitudinal connectivity                                      channel form
                                                                                                                   habitat complexity            biotic diversity
                                                                                                                   patch disturbance
                                                                            access to          spates
                                                                            floodplains


                                                                                                         variability                   Principle 2
                                                                             dispersal                                            Life history patterns
                                                                Discharge




                                                                             triggers                                             • spawning
                                                                                                    reproductive triggers         • recruitment

                                                                                                           seasonality
                                                                                                           predictability
                                                                                                                            stable baseflows
                                                                                                                                                     drought


                                                                                                  Time
                                                                                               Principle 4
                                                                               natural regime discourages invasions




                                                                                                                                                                    14
Impoundments provide habitat for exotic
  fish and plants (e.g. water hyacinth)




                                          Mozambique tilapia
                                         has established self-
                                        maintaining populations n
                                             Wivenhoe and
                                            North Pine Dams
       Y
       e




  Fish species diversity has declined with
 increasing degree of flow regulation in the
           Murray-Darling Basin

                                         - more stable flows,
                                         - less frequent flooding
                                         - modified habitat, food,
                                              spawning conditions

                                         - native fish have declined
                                         - exotic species dominate,
                                              especially carp




           Annual proportional flow deviation




 Water fern – Salvinia - covering a riverine
               impoundment




                                                                       15
Effects of weirs on
                                               riparian & aquatic
                                                   vegetation
Reach with natural flows


                  Between Marian and Dumbleton
                   Weir Pools - Pioneer R (Site 5)



                                                                           Weir pool




 more stable water levels
 few native aquatic plants                                 Weir pool
 exotic species proliferate




                                                 Environmental Flows
                                               Environmental flows describe
                                               the quantity, timing and quality
                                               of water flows required to
                                               sustain freshwater and
                                               estuarine ecosystems and the
                                               human livelihoods and well-
                                               being that depend upon th
                                               b i th t d        d      these
                                               systems




                                                              Brisbane Declaration 2007
                                                        International Environmental Flows
                                                     Conference, Brisbane, September 2007
                                                       750 delegates from over 50 countries




                                                                                              16

More Related Content

What's hot

Farms, Floods And Fluvial Geomorphology: Making The Most of Our Natural Resou...
Farms, Floods And Fluvial Geomorphology: Making The Most of Our Natural Resou...Farms, Floods And Fluvial Geomorphology: Making The Most of Our Natural Resou...
Farms, Floods And Fluvial Geomorphology: Making The Most of Our Natural Resou...National Institute of Food and Agriculture
 
Impact of Agricultural Stream Restoration on Riparian Hydrology and Biogeoche...
Impact of Agricultural Stream Restoration on Riparian Hydrology and Biogeoche...Impact of Agricultural Stream Restoration on Riparian Hydrology and Biogeoche...
Impact of Agricultural Stream Restoration on Riparian Hydrology and Biogeoche...National Institute of Food and Agriculture
 
Pecos/Devils River Watershed Projects Part II
Pecos/Devils River Watershed Projects Part IIPecos/Devils River Watershed Projects Part II
Pecos/Devils River Watershed Projects Part IIThe Texas Network, LLC
 
Wintergreen Pond Management Plan (1)
Wintergreen Pond Management Plan (1)Wintergreen Pond Management Plan (1)
Wintergreen Pond Management Plan (1)John Fitzpatrick
 
POWER POINT PRESENTATION
POWER POINT PRESENTATIONPOWER POINT PRESENTATION
POWER POINT PRESENTATIONMoumita Roy
 
Modeling the Hydrology of Dal Lake
Modeling the Hydrology of Dal LakeModeling the Hydrology of Dal Lake
Modeling the Hydrology of Dal LakeShakil Romshoo
 
8. Dealing with physical damage to rivers: the Morphological Quality Index an...
8. Dealing with physical damage to rivers: the Morphological Quality Index an...8. Dealing with physical damage to rivers: the Morphological Quality Index an...
8. Dealing with physical damage to rivers: the Morphological Quality Index an...Environmental Protection Agency, Ireland
 
Fish passage system on Ialomița River!Lawrence G. Dominguez!
Fish passage system on Ialomița River!Lawrence G. Dominguez!Fish passage system on Ialomița River!Lawrence G. Dominguez!
Fish passage system on Ialomița River!Lawrence G. Dominguez!Răzvan Voicu
 
Water Quality Modeling for Groundwater, Surface Water, and Watersheds: Basic ...
Water Quality Modeling for Groundwater, Surface Water, and Watersheds: Basic ...Water Quality Modeling for Groundwater, Surface Water, and Watersheds: Basic ...
Water Quality Modeling for Groundwater, Surface Water, and Watersheds: Basic ...Nebraska Water Center
 
Mp gw ground water quality in jabalpur urban area with emphasis on transport ...
Mp gw ground water quality in jabalpur urban area with emphasis on transport ...Mp gw ground water quality in jabalpur urban area with emphasis on transport ...
Mp gw ground water quality in jabalpur urban area with emphasis on transport ...hydrologywebsite1
 
The importance of groundwater surface water interaction - a case study on Rio...
The importance of groundwater surface water interaction - a case study on Rio...The importance of groundwater surface water interaction - a case study on Rio...
The importance of groundwater surface water interaction - a case study on Rio...The Texas Network, LLC
 
Flyer-Seminar_Josh_Swanson
Flyer-Seminar_Josh_SwansonFlyer-Seminar_Josh_Swanson
Flyer-Seminar_Josh_SwansonJoshua Swanson
 
Research on Manasbal Lake
Research on Manasbal LakeResearch on Manasbal Lake
Research on Manasbal LakeShakil Romshoo
 
Conrad_Clark_McMains_Grant_Proposal-2
Conrad_Clark_McMains_Grant_Proposal-2Conrad_Clark_McMains_Grant_Proposal-2
Conrad_Clark_McMains_Grant_Proposal-2Dan Conrad
 
Johnson Creek Restoration Plan Final
Johnson Creek Restoration Plan FinalJohnson Creek Restoration Plan Final
Johnson Creek Restoration Plan FinalJesse Jones
 
Texas drought and watermaster update twca 2014
Texas drought and watermaster update   twca 2014Texas drought and watermaster update   twca 2014
Texas drought and watermaster update twca 2014The Texas Network, LLC
 

What's hot (20)

Farms, Floods And Fluvial Geomorphology: Making The Most of Our Natural Resou...
Farms, Floods And Fluvial Geomorphology: Making The Most of Our Natural Resou...Farms, Floods And Fluvial Geomorphology: Making The Most of Our Natural Resou...
Farms, Floods And Fluvial Geomorphology: Making The Most of Our Natural Resou...
 
T s3 gh3_nitin kaushal
T s3 gh3_nitin kaushalT s3 gh3_nitin kaushal
T s3 gh3_nitin kaushal
 
Impact of Agricultural Stream Restoration on Riparian Hydrology and Biogeoche...
Impact of Agricultural Stream Restoration on Riparian Hydrology and Biogeoche...Impact of Agricultural Stream Restoration on Riparian Hydrology and Biogeoche...
Impact of Agricultural Stream Restoration on Riparian Hydrology and Biogeoche...
 
Pecos/Devils River Watershed Projects Part II
Pecos/Devils River Watershed Projects Part IIPecos/Devils River Watershed Projects Part II
Pecos/Devils River Watershed Projects Part II
 
Wintergreen Pond Management Plan (1)
Wintergreen Pond Management Plan (1)Wintergreen Pond Management Plan (1)
Wintergreen Pond Management Plan (1)
 
POWER POINT PRESENTATION
POWER POINT PRESENTATIONPOWER POINT PRESENTATION
POWER POINT PRESENTATION
 
Modeling the Hydrology of Dal Lake
Modeling the Hydrology of Dal LakeModeling the Hydrology of Dal Lake
Modeling the Hydrology of Dal Lake
 
8. Dealing with physical damage to rivers: the Morphological Quality Index an...
8. Dealing with physical damage to rivers: the Morphological Quality Index an...8. Dealing with physical damage to rivers: the Morphological Quality Index an...
8. Dealing with physical damage to rivers: the Morphological Quality Index an...
 
Fish passage system on Ialomița River!Lawrence G. Dominguez!
Fish passage system on Ialomița River!Lawrence G. Dominguez!Fish passage system on Ialomița River!Lawrence G. Dominguez!
Fish passage system on Ialomița River!Lawrence G. Dominguez!
 
Water Quality Modeling for Groundwater, Surface Water, and Watersheds: Basic ...
Water Quality Modeling for Groundwater, Surface Water, and Watersheds: Basic ...Water Quality Modeling for Groundwater, Surface Water, and Watersheds: Basic ...
Water Quality Modeling for Groundwater, Surface Water, and Watersheds: Basic ...
 
Mp gw ground water quality in jabalpur urban area with emphasis on transport ...
Mp gw ground water quality in jabalpur urban area with emphasis on transport ...Mp gw ground water quality in jabalpur urban area with emphasis on transport ...
Mp gw ground water quality in jabalpur urban area with emphasis on transport ...
 
The importance of groundwater surface water interaction - a case study on Rio...
The importance of groundwater surface water interaction - a case study on Rio...The importance of groundwater surface water interaction - a case study on Rio...
The importance of groundwater surface water interaction - a case study on Rio...
 
I0274058068
I0274058068I0274058068
I0274058068
 
Flyer-Seminar_Josh_Swanson
Flyer-Seminar_Josh_SwansonFlyer-Seminar_Josh_Swanson
Flyer-Seminar_Josh_Swanson
 
DESSERTATION
DESSERTATIONDESSERTATION
DESSERTATION
 
Research on Manasbal Lake
Research on Manasbal LakeResearch on Manasbal Lake
Research on Manasbal Lake
 
Conrad_Clark_McMains_Grant_Proposal-2
Conrad_Clark_McMains_Grant_Proposal-2Conrad_Clark_McMains_Grant_Proposal-2
Conrad_Clark_McMains_Grant_Proposal-2
 
Johnson Creek Restoration Plan Final
Johnson Creek Restoration Plan FinalJohnson Creek Restoration Plan Final
Johnson Creek Restoration Plan Final
 
Texas drought and watermaster update twca 2014
Texas drought and watermaster update   twca 2014Texas drought and watermaster update   twca 2014
Texas drought and watermaster update twca 2014
 
Galveston Bay Handouts
Galveston Bay HandoutsGalveston Bay Handouts
Galveston Bay Handouts
 

Viewers also liked

1.1 river health assessment technical framework and key issues
1.1 river health assessment technical framework and key issues1.1 river health assessment technical framework and key issues
1.1 river health assessment technical framework and key issuesInternational WaterCentre
 
Gbr catchment scale modelling, gillian mc closkey
Gbr catchment scale modelling, gillian mc closkeyGbr catchment scale modelling, gillian mc closkey
Gbr catchment scale modelling, gillian mc closkeyInternational WaterCentre
 
Dewha b seung baek presentation 231109 [compatibil
Dewha b seung baek presentation 231109 [compatibilDewha b seung baek presentation 231109 [compatibil
Dewha b seung baek presentation 231109 [compatibilInternational WaterCentre
 
2 river health assessment and environmental flows project finding summary
2 river health assessment and environmental flows project finding summary2 river health assessment and environmental flows project finding summary
2 river health assessment and environmental flows project finding summaryInternational WaterCentre
 
1 overview of a water management plan for the murray darling basin, australia
1  overview of a water management plan for the murray darling basin, australia1  overview of a water management plan for the murray darling basin, australia
1 overview of a water management plan for the murray darling basin, australiaInternational WaterCentre
 
8 making use of existing data in river health assessment results cn
8 making use of existing data in river health assessment results cn8 making use of existing data in river health assessment results cn
8 making use of existing data in river health assessment results cnInternational WaterCentre
 
1.2 developing a national river health program in australia en
1.2 developing a national river health program in australia en1.2 developing a national river health program in australia en
1.2 developing a national river health program in australia enInternational WaterCentre
 
4 river health assessment guiding principles
4 river health assessment   guiding principles4 river health assessment   guiding principles
4 river health assessment guiding principlesInternational WaterCentre
 
Dewha les roberts mdba part 2 acedp tour 23 nov 09
Dewha les roberts mdba part 2 acedp  tour 23 nov 09Dewha les roberts mdba part 2 acedp  tour 23 nov 09
Dewha les roberts mdba part 2 acedp tour 23 nov 09International WaterCentre
 
5 river health assessment pearl river pilot-cand_e
5 river health assessment   pearl river pilot-cand_e5 river health assessment   pearl river pilot-cand_e
5 river health assessment pearl river pilot-cand_eInternational WaterCentre
 
3 e flows pearl river (li river) pilot-cand_e
3 e flows pearl river (li river) pilot-cand_e3 e flows pearl river (li river) pilot-cand_e
3 e flows pearl river (li river) pilot-cand_eInternational WaterCentre
 
Craes xiaodong-integrated river health assessment
Craes xiaodong-integrated river health assessmentCraes xiaodong-integrated river health assessment
Craes xiaodong-integrated river health assessmentInternational WaterCentre
 
Derm iwc chinese delegation rc presentation 30 nov 09
Derm iwc chinese delegation rc presentation 30 nov 09Derm iwc chinese delegation rc presentation 30 nov 09
Derm iwc chinese delegation rc presentation 30 nov 09International WaterCentre
 
Nwc presentation to acedp river health and e flows 23 nov 2009
Nwc presentation to acedp river health and e flows 23 nov 2009Nwc presentation to acedp river health and e flows 23 nov 2009
Nwc presentation to acedp river health and e flows 23 nov 2009International WaterCentre
 

Viewers also liked (20)

1.1 river health assessment technical framework and key issues
1.1 river health assessment technical framework and key issues1.1 river health assessment technical framework and key issues
1.1 river health assessment technical framework and key issues
 
Gippel hydrology & rh nov_2010_b
Gippel hydrology & rh nov_2010_bGippel hydrology & rh nov_2010_b
Gippel hydrology & rh nov_2010_b
 
Gbr catchment scale modelling, gillian mc closkey
Gbr catchment scale modelling, gillian mc closkeyGbr catchment scale modelling, gillian mc closkey
Gbr catchment scale modelling, gillian mc closkey
 
Dewha b seung baek presentation 231109 [compatibil
Dewha b seung baek presentation 231109 [compatibilDewha b seung baek presentation 231109 [compatibil
Dewha b seung baek presentation 231109 [compatibil
 
2 river health assessment and environmental flows project finding summary
2 river health assessment and environmental flows project finding summary2 river health assessment and environmental flows project finding summary
2 river health assessment and environmental flows project finding summary
 
1 overview of a water management plan for the murray darling basin, australia
1  overview of a water management plan for the murray darling basin, australia1  overview of a water management plan for the murray darling basin, australia
1 overview of a water management plan for the murray darling basin, australia
 
8 making use of existing data in river health assessment results cn
8 making use of existing data in river health assessment results cn8 making use of existing data in river health assessment results cn
8 making use of existing data in river health assessment results cn
 
Aquatic biological monitoring, richard hunt
Aquatic biological monitoring, richard huntAquatic biological monitoring, richard hunt
Aquatic biological monitoring, richard hunt
 
1.2 developing a national river health program in australia en
1.2 developing a national river health program in australia en1.2 developing a national river health program in australia en
1.2 developing a national river health program in australia en
 
Acedp csiro and wf hc and sy
Acedp csiro and wf hc and syAcedp csiro and wf hc and sy
Acedp csiro and wf hc and sy
 
4 river health assessment guiding principles
4 river health assessment   guiding principles4 river health assessment   guiding principles
4 river health assessment guiding principles
 
Dewha les roberts mdba part 2 acedp tour 23 nov 09
Dewha les roberts mdba part 2 acedp  tour 23 nov 09Dewha les roberts mdba part 2 acedp  tour 23 nov 09
Dewha les roberts mdba part 2 acedp tour 23 nov 09
 
T s3 gh3_worawan sukraroek
T s3 gh3_worawan sukraroekT s3 gh3_worawan sukraroek
T s3 gh3_worawan sukraroek
 
5 river health assessment pearl river pilot-cand_e
5 river health assessment   pearl river pilot-cand_e5 river health assessment   pearl river pilot-cand_e
5 river health assessment pearl river pilot-cand_e
 
3 e flows pearl river (li river) pilot-cand_e
3 e flows pearl river (li river) pilot-cand_e3 e flows pearl river (li river) pilot-cand_e
3 e flows pearl river (li river) pilot-cand_e
 
Australia china acedp mdba breifing final
Australia china acedp mdba breifing finalAustralia china acedp mdba breifing final
Australia china acedp mdba breifing final
 
Craes xiaodong-integrated river health assessment
Craes xiaodong-integrated river health assessmentCraes xiaodong-integrated river health assessment
Craes xiaodong-integrated river health assessment
 
Derm iwc chinese delegation rc presentation 30 nov 09
Derm iwc chinese delegation rc presentation 30 nov 09Derm iwc chinese delegation rc presentation 30 nov 09
Derm iwc chinese delegation rc presentation 30 nov 09
 
E-flows Yellow River (downstream) pilot
E-flows Yellow River (downstream) pilotE-flows Yellow River (downstream) pilot
E-flows Yellow River (downstream) pilot
 
Nwc presentation to acedp river health and e flows 23 nov 2009
Nwc presentation to acedp river health and e flows 23 nov 2009Nwc presentation to acedp river health and e flows 23 nov 2009
Nwc presentation to acedp river health and e flows 23 nov 2009
 

Similar to Arthington iwc e flows principles handout

Options for the environmental future of the River Murray
Options for the environmental future of the River MurrayOptions for the environmental future of the River Murray
Options for the environmental future of the River MurrayUniversity of Adelaide
 
Wegener_ResearchPoster
Wegener_ResearchPosterWegener_ResearchPoster
Wegener_ResearchPosterPamela Wegener
 
DSD-INT 2016 Assessment of hydrologic alterations using floodplain connectivi...
DSD-INT 2016 Assessment of hydrologic alterations using floodplain connectivi...DSD-INT 2016 Assessment of hydrologic alterations using floodplain connectivi...
DSD-INT 2016 Assessment of hydrologic alterations using floodplain connectivi...Deltares
 
minimum flow- need & response
minimum flow- need & responseminimum flow- need & response
minimum flow- need & responseDeepak Upadhyay
 
Environment as important water use for hydro-infrastructure's consideration
Environment as important water use for hydro-infrastructure's considerationEnvironment as important water use for hydro-infrastructure's consideration
Environment as important water use for hydro-infrastructure's considerationCPWF Mekong
 
Keynote: Science in Large Scale River Restoration - Dahm
Keynote: Science in Large Scale River Restoration - DahmKeynote: Science in Large Scale River Restoration - Dahm
Keynote: Science in Large Scale River Restoration - DahmWillamette River Initiative
 
DuBowy Ecohydrology & Hydrobiology 2013
DuBowy Ecohydrology & Hydrobiology 2013DuBowy Ecohydrology & Hydrobiology 2013
DuBowy Ecohydrology & Hydrobiology 2013Paul DuBowy
 
Dams & environment
Dams & environmentDams & environment
Dams & environmentRAJ BAIRWA
 
14th Riversymposium, keynote presentation from Prof Barry Hart (2011)
14th Riversymposium, keynote presentation from Prof Barry Hart (2011)14th Riversymposium, keynote presentation from Prof Barry Hart (2011)
14th Riversymposium, keynote presentation from Prof Barry Hart (2011)International WaterCentre
 
Water Wednesday - Professor Barry Hart
Water Wednesday - Professor Barry HartWater Wednesday - Professor Barry Hart
Water Wednesday - Professor Barry HartUniversity of Adelaide
 
DSD-INT 2019 DANUBIUS-RI the Scientific Agenda-Bradley
DSD-INT 2019 DANUBIUS-RI the Scientific Agenda-BradleyDSD-INT 2019 DANUBIUS-RI the Scientific Agenda-Bradley
DSD-INT 2019 DANUBIUS-RI the Scientific Agenda-BradleyDeltares
 
Wi petersmeybeck
Wi petersmeybeckWi petersmeybeck
Wi petersmeybeckcmsshare12
 
Ben Starr_AHA Paper_Final
Ben Starr_AHA Paper_FinalBen Starr_AHA Paper_Final
Ben Starr_AHA Paper_FinalBen Starr
 
Seminar human impact on rivers
Seminar human impact on riversSeminar human impact on rivers
Seminar human impact on riversCathrine Jesus J
 

Similar to Arthington iwc e flows principles handout (20)

Options for the environmental future of the River Murray
Options for the environmental future of the River MurrayOptions for the environmental future of the River Murray
Options for the environmental future of the River Murray
 
Wegener_ResearchPoster
Wegener_ResearchPosterWegener_ResearchPoster
Wegener_ResearchPoster
 
Introduction to River Science
Introduction to River Science Introduction to River Science
Introduction to River Science
 
DSD-INT 2016 Assessment of hydrologic alterations using floodplain connectivi...
DSD-INT 2016 Assessment of hydrologic alterations using floodplain connectivi...DSD-INT 2016 Assessment of hydrologic alterations using floodplain connectivi...
DSD-INT 2016 Assessment of hydrologic alterations using floodplain connectivi...
 
Biohabitats, Inc.
Biohabitats, Inc. Biohabitats, Inc.
Biohabitats, Inc.
 
minimum flow- need & response
minimum flow- need & responseminimum flow- need & response
minimum flow- need & response
 
Environment as important water use for hydro-infrastructure's consideration
Environment as important water use for hydro-infrastructure's considerationEnvironment as important water use for hydro-infrastructure's consideration
Environment as important water use for hydro-infrastructure's consideration
 
Keynote: Science in Large Scale River Restoration - Dahm
Keynote: Science in Large Scale River Restoration - DahmKeynote: Science in Large Scale River Restoration - Dahm
Keynote: Science in Large Scale River Restoration - Dahm
 
Effects of land use and climate variability on the water quality of Mediterra...
Effects of land use and climate variability on the water quality of Mediterra...Effects of land use and climate variability on the water quality of Mediterra...
Effects of land use and climate variability on the water quality of Mediterra...
 
DuBowy Ecohydrology & Hydrobiology 2013
DuBowy Ecohydrology & Hydrobiology 2013DuBowy Ecohydrology & Hydrobiology 2013
DuBowy Ecohydrology & Hydrobiology 2013
 
Dams & environment
Dams & environmentDams & environment
Dams & environment
 
14th Riversymposium, keynote presentation from Prof Barry Hart (2011)
14th Riversymposium, keynote presentation from Prof Barry Hart (2011)14th Riversymposium, keynote presentation from Prof Barry Hart (2011)
14th Riversymposium, keynote presentation from Prof Barry Hart (2011)
 
Water Wednesday - Professor Barry Hart
Water Wednesday - Professor Barry HartWater Wednesday - Professor Barry Hart
Water Wednesday - Professor Barry Hart
 
DSD-INT 2019 DANUBIUS-RI the Scientific Agenda-Bradley
DSD-INT 2019 DANUBIUS-RI the Scientific Agenda-BradleyDSD-INT 2019 DANUBIUS-RI the Scientific Agenda-Bradley
DSD-INT 2019 DANUBIUS-RI the Scientific Agenda-Bradley
 
Wi petersmeybeck
Wi petersmeybeckWi petersmeybeck
Wi petersmeybeck
 
Ben Starr_AHA Paper_Final
Ben Starr_AHA Paper_FinalBen Starr_AHA Paper_Final
Ben Starr_AHA Paper_Final
 
Environmental flows: The concept and applications in India
Environmental flows: The concept and applications in IndiaEnvironmental flows: The concept and applications in India
Environmental flows: The concept and applications in India
 
Siltflux Leaflet
Siltflux LeafletSiltflux Leaflet
Siltflux Leaflet
 
Watershed Condition Frameworks by Angela Coleman
Watershed Condition Frameworks by Angela ColemanWatershed Condition Frameworks by Angela Coleman
Watershed Condition Frameworks by Angela Coleman
 
Seminar human impact on rivers
Seminar human impact on riversSeminar human impact on rivers
Seminar human impact on rivers
 

More from International WaterCentre

The Value of Measuring the Health of Our Rivers
The Value of Measuring the Health of Our Rivers The Value of Measuring the Health of Our Rivers
The Value of Measuring the Health of Our Rivers International WaterCentre
 
Water Resources Planning and Governance in Highly Contested Rivers
Water Resources Planning and Governance in Highly Contested RiversWater Resources Planning and Governance in Highly Contested Rivers
Water Resources Planning and Governance in Highly Contested RiversInternational WaterCentre
 
B4 c catchment present chinese delegation dec 09
B4 c catchment present chinese delegation dec 09B4 c catchment present chinese delegation dec 09
B4 c catchment present chinese delegation dec 09International WaterCentre
 
Dewha jennifer martin presentation 231109 [compati
Dewha jennifer martin presentation 231109 [compatiDewha jennifer martin presentation 231109 [compati
Dewha jennifer martin presentation 231109 [compatiInternational WaterCentre
 
Dewha c bruce gray presentation 231109 [compatibil
Dewha c bruce gray presentation 231109 [compatibilDewha c bruce gray presentation 231109 [compatibil
Dewha c bruce gray presentation 231109 [compatibilInternational WaterCentre
 
Dewha a chris schweizer presentation 231109 [comp
Dewha a chris schweizer  presentation 231109 [compDewha a chris schweizer  presentation 231109 [comp
Dewha a chris schweizer presentation 231109 [compInternational WaterCentre
 
Derm iwc chinese delagation_greg long 301109
Derm iwc chinese delagation_greg long 301109Derm iwc chinese delagation_greg long 301109
Derm iwc chinese delagation_greg long 301109International WaterCentre
 
Derm iwc chineese delegation wrp 30 nov 2009
Derm iwc chineese delegation  wrp 30 nov 2009Derm iwc chineese delegation  wrp 30 nov 2009
Derm iwc chineese delegation wrp 30 nov 2009International WaterCentre
 
Arthington iwc e flows for delegation scenario 1 eloha handout
Arthington iwc e flows for delegation scenario 1 eloha handoutArthington iwc e flows for delegation scenario 1 eloha handout
Arthington iwc e flows for delegation scenario 1 eloha handoutInternational WaterCentre
 
Arthington iwc e flows for delegation scenario 1 drift handout (2)
Arthington iwc e flows for delegation scenario 1 drift handout (2)Arthington iwc e flows for delegation scenario 1 drift handout (2)
Arthington iwc e flows for delegation scenario 1 drift handout (2)International WaterCentre
 

More from International WaterCentre (20)

IWC Master of Integrated Water Management
IWC Master of Integrated Water ManagementIWC Master of Integrated Water Management
IWC Master of Integrated Water Management
 
The Value of Measuring the Health of Our Rivers
The Value of Measuring the Health of Our Rivers The Value of Measuring the Health of Our Rivers
The Value of Measuring the Health of Our Rivers
 
Water Resources Planning and Governance in Highly Contested Rivers
Water Resources Planning and Governance in Highly Contested RiversWater Resources Planning and Governance in Highly Contested Rivers
Water Resources Planning and Governance in Highly Contested Rivers
 
B4 c catchment present chinese delegation dec 09
B4 c catchment present chinese delegation dec 09B4 c catchment present chinese delegation dec 09
B4 c catchment present chinese delegation dec 09
 
Ph key messages
Ph key messagesPh key messages
Ph key messages
 
Sheldon designing ehmp
Sheldon designing ehmpSheldon designing ehmp
Sheldon designing ehmp
 
Ph seq ehmp
Ph seq ehmpPh seq ehmp
Ph seq ehmp
 
Ph semat overview
Ph semat overviewPh semat overview
Ph semat overview
 
Ph aem overview
Ph aem overviewPh aem overview
Ph aem overview
 
Dewha jennifer martin presentation 231109 [compati
Dewha jennifer martin presentation 231109 [compatiDewha jennifer martin presentation 231109 [compati
Dewha jennifer martin presentation 231109 [compati
 
Dewha c bruce gray presentation 231109 [compatibil
Dewha c bruce gray presentation 231109 [compatibilDewha c bruce gray presentation 231109 [compatibil
Dewha c bruce gray presentation 231109 [compatibil
 
Dewha acedp info 231109
Dewha acedp info 231109Dewha acedp info 231109
Dewha acedp info 231109
 
Dewha a chris schweizer presentation 231109 [comp
Dewha a chris schweizer  presentation 231109 [compDewha a chris schweizer  presentation 231109 [comp
Dewha a chris schweizer presentation 231109 [comp
 
Derm iwc chinese delagation_greg long 301109
Derm iwc chinese delagation_greg long 301109Derm iwc chinese delagation_greg long 301109
Derm iwc chinese delagation_greg long 301109
 
Derm iwc chineese delegation wrp 30 nov 2009
Derm iwc chineese delegation  wrp 30 nov 2009Derm iwc chineese delegation  wrp 30 nov 2009
Derm iwc chineese delegation wrp 30 nov 2009
 
Ph key messages
Ph key messagesPh key messages
Ph key messages
 
Bcc 20091205 bcc iwc prioritisation
Bcc 20091205  bcc iwc prioritisationBcc 20091205  bcc iwc prioritisation
Bcc 20091205 bcc iwc prioritisation
 
Arthington iwc e flows for delegation scenario 1 eloha handout
Arthington iwc e flows for delegation scenario 1 eloha handoutArthington iwc e flows for delegation scenario 1 eloha handout
Arthington iwc e flows for delegation scenario 1 eloha handout
 
Arthington iwc e flows for delegation scenario 1 drift handout (2)
Arthington iwc e flows for delegation scenario 1 drift handout (2)Arthington iwc e flows for delegation scenario 1 drift handout (2)
Arthington iwc e flows for delegation scenario 1 drift handout (2)
 
Abal report card presentation iyrf
Abal report card presentation iyrfAbal report card presentation iyrf
Abal report card presentation iyrf
 

Recently uploaded

Planetek Italia Srl - Corporate Profile Brochure
Planetek Italia Srl - Corporate Profile BrochurePlanetek Italia Srl - Corporate Profile Brochure
Planetek Italia Srl - Corporate Profile BrochurePlanetek Italia Srl
 
AI Workshops at Computers In Libraries 2024
AI Workshops at Computers In Libraries 2024AI Workshops at Computers In Libraries 2024
AI Workshops at Computers In Libraries 2024Brian Pichman
 
From the origin to the future of Open Source model and business
From the origin to the future of  Open Source model and businessFrom the origin to the future of  Open Source model and business
From the origin to the future of Open Source model and businessFrancesco Corti
 
How to release an Open Source Dataweave Library
How to release an Open Source Dataweave LibraryHow to release an Open Source Dataweave Library
How to release an Open Source Dataweave Libraryshyamraj55
 
March Patch Tuesday
March Patch TuesdayMarch Patch Tuesday
March Patch TuesdayIvanti
 
How to become a GDSC Lead GDSC MI AOE.pptx
How to become a GDSC Lead GDSC MI AOE.pptxHow to become a GDSC Lead GDSC MI AOE.pptx
How to become a GDSC Lead GDSC MI AOE.pptxKaustubhBhavsar6
 
UiPath Studio Web workshop series - Day 4
UiPath Studio Web workshop series - Day 4UiPath Studio Web workshop series - Day 4
UiPath Studio Web workshop series - Day 4DianaGray10
 
SIM INFORMATION SYSTEM: REVOLUTIONIZING DATA MANAGEMENT
SIM INFORMATION SYSTEM: REVOLUTIONIZING DATA MANAGEMENTSIM INFORMATION SYSTEM: REVOLUTIONIZING DATA MANAGEMENT
SIM INFORMATION SYSTEM: REVOLUTIONIZING DATA MANAGEMENTxtailishbaloch
 
Key Trends Shaping the Future of Infrastructure.pdf
Key Trends Shaping the Future of Infrastructure.pdfKey Trends Shaping the Future of Infrastructure.pdf
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
 
3 Pitfalls Everyone Should Avoid with Cloud Data
3 Pitfalls Everyone Should Avoid with Cloud Data3 Pitfalls Everyone Should Avoid with Cloud Data
3 Pitfalls Everyone Should Avoid with Cloud DataEric D. Schabell
 
Design and Modeling for MySQL SCALE 21X Pasadena, CA Mar 2024
Design and Modeling for MySQL SCALE 21X Pasadena, CA Mar 2024Design and Modeling for MySQL SCALE 21X Pasadena, CA Mar 2024
Design and Modeling for MySQL SCALE 21X Pasadena, CA Mar 2024Alkin Tezuysal
 
Oracle Database 23c Security New Features.pptx
Oracle Database 23c Security New Features.pptxOracle Database 23c Security New Features.pptx
Oracle Database 23c Security New Features.pptxSatishbabu Gunukula
 
IT Service Management (ITSM) Best Practices for Advanced Computing
IT Service Management (ITSM) Best Practices for Advanced ComputingIT Service Management (ITSM) Best Practices for Advanced Computing
IT Service Management (ITSM) Best Practices for Advanced ComputingMAGNIntelligence
 
Emil Eifrem at GraphSummit Copenhagen 2024 - The Art of the Possible.pptx
Emil Eifrem at GraphSummit Copenhagen 2024 - The Art of the Possible.pptxEmil Eifrem at GraphSummit Copenhagen 2024 - The Art of the Possible.pptx
Emil Eifrem at GraphSummit Copenhagen 2024 - The Art of the Possible.pptxNeo4j
 
CyberSecurity - Computers In Libraries 2024
CyberSecurity - Computers In Libraries 2024CyberSecurity - Computers In Libraries 2024
CyberSecurity - Computers In Libraries 2024Brian Pichman
 
The Importance of Indoor Air Quality (English)
The Importance of Indoor Air Quality (English)The Importance of Indoor Air Quality (English)
The Importance of Indoor Air Quality (English)IES VE
 
UiPath Studio Web workshop series - Day 1
UiPath Studio Web workshop series  - Day 1UiPath Studio Web workshop series  - Day 1
UiPath Studio Web workshop series - Day 1DianaGray10
 
My key hands-on projects in Quantum, and QAI
My key hands-on projects in Quantum, and QAIMy key hands-on projects in Quantum, and QAI
My key hands-on projects in Quantum, and QAIVijayananda Mohire
 
Patch notes explaining DISARM Version 1.4 update
Patch notes explaining DISARM Version 1.4 updatePatch notes explaining DISARM Version 1.4 update
Patch notes explaining DISARM Version 1.4 updateadam112203
 
Outage Analysis: March 5th/6th 2024 Meta, Comcast, and LinkedIn
Outage Analysis: March 5th/6th 2024 Meta, Comcast, and LinkedInOutage Analysis: March 5th/6th 2024 Meta, Comcast, and LinkedIn
Outage Analysis: March 5th/6th 2024 Meta, Comcast, and LinkedInThousandEyes
 

Recently uploaded (20)

Planetek Italia Srl - Corporate Profile Brochure
Planetek Italia Srl - Corporate Profile BrochurePlanetek Italia Srl - Corporate Profile Brochure
Planetek Italia Srl - Corporate Profile Brochure
 
AI Workshops at Computers In Libraries 2024
AI Workshops at Computers In Libraries 2024AI Workshops at Computers In Libraries 2024
AI Workshops at Computers In Libraries 2024
 
From the origin to the future of Open Source model and business
From the origin to the future of  Open Source model and businessFrom the origin to the future of  Open Source model and business
From the origin to the future of Open Source model and business
 
How to release an Open Source Dataweave Library
How to release an Open Source Dataweave LibraryHow to release an Open Source Dataweave Library
How to release an Open Source Dataweave Library
 
March Patch Tuesday
March Patch TuesdayMarch Patch Tuesday
March Patch Tuesday
 
How to become a GDSC Lead GDSC MI AOE.pptx
How to become a GDSC Lead GDSC MI AOE.pptxHow to become a GDSC Lead GDSC MI AOE.pptx
How to become a GDSC Lead GDSC MI AOE.pptx
 
UiPath Studio Web workshop series - Day 4
UiPath Studio Web workshop series - Day 4UiPath Studio Web workshop series - Day 4
UiPath Studio Web workshop series - Day 4
 
SIM INFORMATION SYSTEM: REVOLUTIONIZING DATA MANAGEMENT
SIM INFORMATION SYSTEM: REVOLUTIONIZING DATA MANAGEMENTSIM INFORMATION SYSTEM: REVOLUTIONIZING DATA MANAGEMENT
SIM INFORMATION SYSTEM: REVOLUTIONIZING DATA MANAGEMENT
 
Key Trends Shaping the Future of Infrastructure.pdf
Key Trends Shaping the Future of Infrastructure.pdfKey Trends Shaping the Future of Infrastructure.pdf
Key Trends Shaping the Future of Infrastructure.pdf
 
3 Pitfalls Everyone Should Avoid with Cloud Data
3 Pitfalls Everyone Should Avoid with Cloud Data3 Pitfalls Everyone Should Avoid with Cloud Data
3 Pitfalls Everyone Should Avoid with Cloud Data
 
Design and Modeling for MySQL SCALE 21X Pasadena, CA Mar 2024
Design and Modeling for MySQL SCALE 21X Pasadena, CA Mar 2024Design and Modeling for MySQL SCALE 21X Pasadena, CA Mar 2024
Design and Modeling for MySQL SCALE 21X Pasadena, CA Mar 2024
 
Oracle Database 23c Security New Features.pptx
Oracle Database 23c Security New Features.pptxOracle Database 23c Security New Features.pptx
Oracle Database 23c Security New Features.pptx
 
IT Service Management (ITSM) Best Practices for Advanced Computing
IT Service Management (ITSM) Best Practices for Advanced ComputingIT Service Management (ITSM) Best Practices for Advanced Computing
IT Service Management (ITSM) Best Practices for Advanced Computing
 
Emil Eifrem at GraphSummit Copenhagen 2024 - The Art of the Possible.pptx
Emil Eifrem at GraphSummit Copenhagen 2024 - The Art of the Possible.pptxEmil Eifrem at GraphSummit Copenhagen 2024 - The Art of the Possible.pptx
Emil Eifrem at GraphSummit Copenhagen 2024 - The Art of the Possible.pptx
 
CyberSecurity - Computers In Libraries 2024
CyberSecurity - Computers In Libraries 2024CyberSecurity - Computers In Libraries 2024
CyberSecurity - Computers In Libraries 2024
 
The Importance of Indoor Air Quality (English)
The Importance of Indoor Air Quality (English)The Importance of Indoor Air Quality (English)
The Importance of Indoor Air Quality (English)
 
UiPath Studio Web workshop series - Day 1
UiPath Studio Web workshop series  - Day 1UiPath Studio Web workshop series  - Day 1
UiPath Studio Web workshop series - Day 1
 
My key hands-on projects in Quantum, and QAI
My key hands-on projects in Quantum, and QAIMy key hands-on projects in Quantum, and QAI
My key hands-on projects in Quantum, and QAI
 
Patch notes explaining DISARM Version 1.4 update
Patch notes explaining DISARM Version 1.4 updatePatch notes explaining DISARM Version 1.4 update
Patch notes explaining DISARM Version 1.4 update
 
Outage Analysis: March 5th/6th 2024 Meta, Comcast, and LinkedIn
Outage Analysis: March 5th/6th 2024 Meta, Comcast, and LinkedInOutage Analysis: March 5th/6th 2024 Meta, Comcast, and LinkedIn
Outage Analysis: March 5th/6th 2024 Meta, Comcast, and LinkedIn
 

Arthington iwc e flows principles handout

  • 1. IWC Environmental Flows and Management Scenarios December 2009 Prof. Angela Arthington Australian Rivers Institute, Griffith University Room 1.09C, Building N13 3735 7403 Rivers and floodplains are the world’s most threatened ecosystems Global declines in river health Loss of freshwater biodiversity Declining food fisheries Loss of human cultural values Impacts on river flow regimes surface and groundwater levee banks on floodplainst abstraction weirs impacts of water grids high value and IBTs free-flowing rivers Minimal flow regime change dam release rules 1
  • 2. Environmental Flows Environmental flows describe the quantity, timing and quality of water flows required to sustain freshwater and estuarine ecosystems and the human livelihoods and well- being that depend upon th b i th t d d these systems Brisbane Declaration 2007 International Environmental Flows Conference, Brisbane, September 2007 750 delegates from over 50 countries Management Scenario 1 Determining e-flows for a new reservoir on a river like the Li Jiang • Rapid assessment, with limited resources and data DRIFT Methodology Downstream Response to Imposed Flow Transformation • Comprehensive assessment, with time to collect field data ELOHA Framework Ecological Limits of Hydrologic Alteration Management Scenario 2 Prioritising e-flows for multiple assets when there is limited water available because of other demands Which wetlands should be given water and how much, when,? g Water allocations to sustain commercial fisheries • Rapid assessment, with limited resources and data Flow Restoration Methodology • Comprehensive assessment, with time to collect field data ELOHA Framework 2
  • 3. Ecological Significance of Natural Flow Regime 1. Poff et al. 1997. Natural Flow Regime Paradigm 2. Bunn & Arthington 2002 Basic principles and ecological consequences of altered flow regimes for aquatic biodiversity 3. Nilsson & Svedmark 2002 Basic principles and ecological consequences of changing water regimes: riparian plant communities 4. Pinay et al. 2002 Basic principles and ecological consequences of changing water regimes on nitrogen cycling in fluvial systems 5. Naiman, Bunn et al. 2002 Legitimising fluvial ecosystems as users of water: An overview Ecological Significance of Flow Natural Flow Regime Paradigm Poff et al. (1997) • The ecological structure and function of flowing water systems depends largely on their natural dynamic flow regime • Stream flow is a “master variable” that influences physical and chemical characteristics, e.g. - water quality - sediment regime and substrate characteristics - channel morphology, habitat structure and diversity - energy sources that fuel the aquatic food web • Stream flow characteristics influence the distribution, abundance and biotic interactions of river and floodplain species • Alteration of the natural flow regime of a river can have physical, chemical and ecological impacts Rivers differ in their natural flow regimes Mekong 0.8 Darling 30 0.6 20 0.4 10 0.2 0 0 6 8 Mississippi Murray 6 4 4 2 2 0 0 Columbia 8 Cooper Creek 20 6 4 10 2 0 0 3
  • 4. Components of natural flow regimes Natural Flow Regime Paradigm - Poff et al. (1997) • Magnitude of flow – discharge Q • Frequency of occurrence – relates to a particular magnitude, e.g. e g zero flow, or 100 year flood etc flow flood, • Duration e.g. number of days of low flow, or number of days the floodplain is inundated, or composite values from flow duration curve • Timing, seasonality and predictability • Rate of change, or flashiness Bunn, S.E. and Arthington, A.H. (2002) Basic principles and ecological consequences of altered flow regimes for aquatic biodiversity. Environmental Management 30: 492-507 1. Flow is a major determinant of physical habitat in streams, which in turn is a major determinant of biotic composition 2. Aquatic Species have evolved life history strategies primarily in direct response to the natural flow regime 3. Maintenance of natural patterns of longitudinal and lateral connectivity is essential to the viability of populations of many riverine species 4. The invasion and success of exotic and introduced species in rivers is facilitated by the alteration of flow regimes Flow-ecology principles Bunn & Arthington (2002) Env. Management Aquatic biodiversity and natural flow regimes Principle 3 lateral connectivity Principle 1 longitudinal connectivity channel form habitat complexity biotic diversity patch disturbance access to spates floodplains variability Principle 2 dispersal Life history patterns Discharge triggers • spawning reproductive triggers • recruitment seasonality predictability stable baseflows drought Time Principle 4 natural regime discourages invasions 4
  • 5. Macro-scale Flow creates and maintains: (channel form) •channel form - headwater tributaries, main channels, lowland floodplains •hydraulic habitat units - riffles, pools, floodplain wetlands Meso-scale (hydraulic units) Micro-scale (patches within hydraulic units) •patches of habitat - undercut banks, boulders - gravel & sand beds, - aquatic plants - woody debris – snags - leaf litter packs Images: Mark Kennard, Griffith University Fish habitat flow preferences in riffles, runs and pools run riffle • intermediate # species • streamlined body • few species pool • streamlined body form • many species • diverse body shapes Images: Mark Kennard & Brad Pusey, Griffith University Position in Rainbowfish Water Column (open water schooling species) Purple spotted gudgeon (benthic species) Water surface 0.2 0.4 Relative water 0.6 depth 0.8 1 0 10 20 30 Stream bed 0 20 40 60 Frequency (% of individuals) Images: Mark Kennard & Brad Pusey, Griffith University 5
  • 6. Substrate composition Frequency of use 30 20 Availability 30 10 20 0 10 0 30 Substrate composition 20 10 0 Images: Mark Kennard & Brad Pusey, Griffith University Microhabitat structure Frequency of use Availability 20 Juveniles 15 Adults 10 15 5 10 0 5 0 Microhabitat structure Images: Mark Kennard & Brad Pusey, Griffith University Microhabitat structure Impacts of flow regime alterations that change habitat downstream of dams and g weirs 6
  • 7. Impacts of water loss and habitat change downstream of dams and weirs Sudden loss of flow and water depth, fish stranding The Lower Murray – a River of Lakes Weir pools favour lentic Gastropods. River gastropods decline. Caused by loss of river habitat & food resources (biofilms) Blue-green algal blooms in the Darling River 1990-1991 Caused by: • Stable low flows • Loss of flushing flows • Elevated nutrients • Ample light • Suitable water temps • Less grazing pressure 7
  • 8. Brisbane River d/s Wivenhoe Dam: Unregulated vs Regulated Flow 180000 300 CV of monthly flow 160000 250 140000 Flow ML 120000 200 100000 150 80000 m 60000 100 40000 50 20000 0 0 MAR OCT AUG NOV APR JUN MAY FEB JAN JUL DEC Mean Monthly Unregulated SEP Mean Monthly Regulated Coefficient of Variation Unregulated Coefficient of Variation Regulated • Reduced mean monthly flows • Reduced flood peaks & “stepped” flow releases • Elevated & more stable low flows • Loss of flow variability at most flow magnitudes Elevated, more stable low flows create habitat for dense, extensive aquatic plant beds Impacts: • altered water quality, e.g. DO Red water • habitat much less diverse milfoil • lower diversity of invertebrates and fish • reduced flood conveyance Effects of Natural Flow Regime on Riparian Vegetation Before Flow Regulation Lateral & longitudinal Zonation of vegetation seed dispersal by by flood frequency & hydrochory duration e.g. herbs, shrubs, trees Biologically active Usually diverse zone flora in comparison e.g. decomposition to surrounding terrestrial system Spatially and temporally heterogeneous plant community composition and structure 8
  • 9. Hydro- Hydro-ecological relationships: riparian vegetation Typical zonation of riparian vegetation for SEQ Mature grassy open eucalypt (E. tereticornis) Tall She-oak (Casuarina & bloodwood (Corymbia Along the channel verge there is a cunninghamiana) riparian tessellaris) woodland stable band of reophytes such as bl b d f h h forest with mesic subcanopy Watergum (Tristaniopsis exilliflora), species on channel terraces Callistemon viminalis. & the Mat rush (Lomandra sp.) Effects of changing the Flow Regime on Riparian Vegetation After Flow Regulation by Dam Barriers to seed dispersal by hydrochory, particularly Streamward migration affecting short-floating seeds of vegetation zones, i.e. replacement of hydrophytic species by y p y p y more mesic/ xeric species. e.g. encroachment of forest Decomposition rates decline with flood elimination Homogenisation of plant community composition & structure Severe effects of reduced flood frequency on floodplain wetlands and waterbirds Wetland loss in Australia: • 90 % loss in M-D Basin M- • 75 % loss on Swan Coastal Plain, WA • 50 % loss NSW coastal rivers 9
  • 10. Principle 2 Life History Patterns Aquatic biodiversity and natural flow regimes Principle 3 lateral connectivity Principle 1 longitudinal connectivity channel form habitat complexity biotic diversity patch disturbance access to spates floodplains variability Principle 2 dispersal Life history patterns Discharge triggers • spawning reproductive triggers • recruitment seasonality predictability stable baseflows drought Time Principle 4 natural regime discourages invasions Life History and Recruitment Strategies Low flow recruitment Spawn during stable low flows in spring & summer, window of opportunity to access habitat/food for larval N. Armstrong fishes No flow recruitment N. Armstrong Spawning in standing water bodies with no flow, e.g. river pools, waterholes on floodplains Merrick & Schmida Flow / flood pulse recruitment Spawn during rising water levels or floods in spring & summer, recruitment enhanced by backwater & floodplain inundation Catfish spawns into a ‘nest’ in well-oxygenated water, water level fluctuations can inhibit spawning Eel-tailed catfish R. Kuiter R. McDowall G. Schmida 10
  • 11. Flows trigger spawning in Clanwilliam Yellowfish  Spawning stimulated by flow cues below dams  Larval growth requires warm water and diverse food items Skelton 1993 Seasonal reproductive cycles of fish species in the Fitzroy River system, QLD A. ag A. per Ar. g. G. apr. p H. lep. Hyp. c. M. mog. N. ater Ox. lin. P. gr. Scl. l. Sc. h. T. tan. J A S O N D J F M A M J low & stable flows wet season Spring temps Summer temps Inversion of normal seasonal flow pattern below large dams Flow and temperature patterns no longer match Loss of fl d fl L f flood flows Fish spawning failure Loss of wetland biodiversity and functions Median monthly flows Murray River at Albury, NSW 11
  • 12. Flow effects on different processes during a plant life cycle Ecological responses to various temporal and spatial scale of flow disturbance Flowering, seed Adult set and release Growth and maturity y Seed Juvenile Dispersal Germination Establishment Seedling Predation, competition Principle 3 Movement and migration Aquatic biodiversity and natural flow regimes Principle 3 lateral connectivity Principle 1 longitudinal connectivity channel form habitat complexity biotic diversity patch disturbance access to spates floodplains variability Principle 2 dispersal Life history patterns Discharge triggers • spawning reproductive triggers • recruitment seasonality predictability stable baseflows drought Time Principle 4 natural regime discourages invasions Movement and Migration Merrick & Schmida 1984 Freshwater Fishes of North-Eastern Australia Pusey, Kennard & Arthington 2004 12
  • 13. Giant Mekong Catfish (2.35 m and 260 kg) “Construction of mainstream dams that obstruct spawning migrations may seal its fate” Dudgeon, 2001 Overfishing has caused failure of the fishery • Fish return to Flood March 2000 waterholes Importance of 13,471 km2 connectivity Bust • Drying waterhole • Fish mortality 93% Connectivity Connectivity Boom • Floodplain inundation Channel flows • Fish breeding • Connectivity • Movement of all life stages • Movement to floodplain • Growth and juvenile • Fish breeding recruitment 11/12 native species move from river to inundated floodplains to feed and grow 13
  • 14. Water flowing to sea is not “wasted” 1600 1400 Total fish catch 1200 Total catch (tonnes) Annual flow (GL) 1000 Fish catch in Moreton 800 Bay vs Logan River 600 400 flow 200 Total flow 0 Loneragan & Bunn 1999 1945 1950 1955 1960 1965 1970 1975 Aust. J. Ecol. 24: 431-440 Year total Prawn catch in Logan 100 estuary vs total summer Catch (tonnes) kings flow 10 Mechanisms: 0 • catchability 10 000 100 000 1 000 000 • habitat & food resources Summer flow (ML) • life history Principle 4 Alien and translocated species Aquatic biodiversity and natural flow regimes Principle 3 lateral connectivity Principle 1 longitudinal connectivity channel form habitat complexity biotic diversity patch disturbance access to spates floodplains variability Principle 2 dispersal Life history patterns Discharge triggers • spawning reproductive triggers • recruitment seasonality predictability stable baseflows drought Time Principle 4 natural regime discourages invasions 14
  • 15. Impoundments provide habitat for exotic fish and plants (e.g. water hyacinth) Mozambique tilapia has established self- maintaining populations n Wivenhoe and North Pine Dams Y e Fish species diversity has declined with increasing degree of flow regulation in the Murray-Darling Basin - more stable flows, - less frequent flooding - modified habitat, food, spawning conditions - native fish have declined - exotic species dominate, especially carp Annual proportional flow deviation Water fern – Salvinia - covering a riverine impoundment 15
  • 16. Effects of weirs on riparian & aquatic vegetation Reach with natural flows Between Marian and Dumbleton Weir Pools - Pioneer R (Site 5) Weir pool  more stable water levels  few native aquatic plants Weir pool  exotic species proliferate Environmental Flows Environmental flows describe the quantity, timing and quality of water flows required to sustain freshwater and estuarine ecosystems and the human livelihoods and well- being that depend upon th b i th t d d these systems Brisbane Declaration 2007 International Environmental Flows Conference, Brisbane, September 2007 750 delegates from over 50 countries 16