This document discusses using aquatic macroinvertebrates to monitor water quality. It outlines how macroinvertebrates can indicate the health of bodies of water, explains how they are classified by their tolerance to pollution, and describes how to sample, sort, identify, and calculate a Benthic Index of Biotic Integrity score. The sampling process involves collecting macroinvertebrates from different habitats using nets and grab samplers, preserving the samples, sorting and identifying the organisms, and calculating the score to assess the water quality and detect problems.
sciencepowerpoint.com delivers a four part 2150+ slide PowerPoint slideshow becomes the roadmap for an amazing and interactive science experience. Complete with bundled homework package, many built-in quizzes, hands-on activities with directions, unit notes, answer keys, video links, rubrics, review games, and much more.
This unit aligns with the Next Generation Science Standards and Common Core Standards for ELA and Literacy in Science and Technical Subjects. See preview for more information.
Areas of Focus within The Rivers Unit -Watersheds, Rivers of the United States, Sections of a River, Parts of River (Vocabulary), Stream Order, Erosion and Deposition, Water Quality, Chemical Properties of Water, Bio-Indicators of Water Quality (EPT richness), Physical Properties of Water Quality, Rivers and Flooding, Factors that Control Flooding, Types of Flooding, Tsunami's, Wetlands, Flood Prevention, Levees, Dams and Ecosystem, Importance of Dams, Impacts of Dams, Hydropower, Parts of Dam, Salmon (Life Cycle), Systems of Help Salmon, Fish (General), Layering in a Lake, Lake Turnover, Nutrients and Lakes.
Teaching Duration = 4+ Weeks + PowerPoint Review Games
Ryan Murphy M.Ed
www.sciencepowerpoint.com
sciencepowerpoint.com delivers a four part 2150+ slide PowerPoint slideshow becomes the roadmap for an amazing and interactive science experience. Complete with bundled homework package, many built-in quizzes, hands-on activities with directions, unit notes, answer keys, video links, rubrics, review games, and much more.
This unit aligns with the Next Generation Science Standards and Common Core Standards for ELA and Literacy in Science and Technical Subjects. See preview for more information.
Areas of Focus within The Rivers Unit -Watersheds, Rivers of the United States, Sections of a River, Parts of River (Vocabulary), Stream Order, Erosion and Deposition, Water Quality, Chemical Properties of Water, Bio-Indicators of Water Quality (EPT richness), Physical Properties of Water Quality, Rivers and Flooding, Factors that Control Flooding, Types of Flooding, Tsunami's, Wetlands, Flood Prevention, Levees, Dams and Ecosystem, Importance of Dams, Impacts of Dams, Hydropower, Parts of Dam, Salmon (Life Cycle), Systems of Help Salmon, Fish (General), Layering in a Lake, Lake Turnover, Nutrients and Lakes.
Teaching Duration = 4+ Weeks + PowerPoint Review Games
Ryan Murphy M.Ed
www.sciencepowerpoint.com
In terms of biomass, the greatest migration in the world is the migration of Zooplankton .
Zooplankton migration is different because it moves up and down through the ocean's depths rather than traversing a landscape.
Climate Change: Implications for Fisheries and AquacultureECFoundation
The Fifth Assessment Report from the Intergovernmental Panel on Climate Change is the
most comprehensive and relevant analysis of our
changing climate. It provides the scientific fact base that will be used around the world to formulate climate policies in the coming years.
This document is one of a series synthesizing the most pertinent findings
of AR5 for specific economic and business sectors. It was born of the belief
that the fisheries and aquaculture sector could make more use of AR5, which is long and
highly technical, if it were distilled into an accurate, accessible, timely,
relevant and readable summary. Although the information presented here is a ‘translation’ of the key content relevant to this sector from AR5, this summary report adheres to the rigorous scientific basis of the original source material.
Grateful thanks are extended to all reviewers from both the science and
business communities for their time, effort and invaluable feedback on
this document. The basis for information presented in this overview report can be found
in the fully-referenced and peer-reviewed IPCC technical and scientific
background reports at: www.ipcc.ch
Distribution and influence of organic matter and microorganisms on aggregatio...Anne Laure Badin
Répartition et influence de la matière organique et des microorganismes sur l'agrégaiton et le relargage de polluants dans des sédiments issus de l'infiltration d'eaux pluviales urbaines
En ville, les eaux pluviales sont parfois collectées et infiltrées à travers des bassins d’infiltration (BI). Cette pratique pourrait conduire au transfert de pollution de la ville vers les nappes d’eaux souterraines. Cette étude a eu pour but d’apporter des éléments de réponse à la question suivante : les sédiments déposés à la surface des BI par l’infiltration des eaux pluviales constituent-ils une source de pollution ? Par la caractérisation biophysicochimique de différents prélèvements de sédiments, nous avons montré que l’état physicochimique et biologique de la couche sédimentaire évolue en fonction de l’état hydrique des BI. L’agrégation a été particulièrement étudiée. Les rôles agrégeant de la matière organique, de certains microorganismes et des faibles teneurs en eau ont été soulignés. Nous avons notamment observé la distribution préférentielle de molécules organiques de haut poids moléculaires et de Cyanobactéries dans les agrégats. Par l’étude de la fraction mobilisable lors du passage de l’eau, nous avons montré que l’état physicochimique et biologique des sédiments influence leurs capacités de relargage de contaminants. La mobilisation de particules, de contaminants métalliques, organiques et de bactéries est plus importante à partir de sédiments humides. Plus que la seule teneur en eau, l’historique hydrologique récent des sédiments semble un paramètre déterminant leur capacité de relargage : récemment perturbés, ils relargueraient plus. Cette thèse invite à considérer les sédiments issus de l’infiltration des eaux pluviales non plus seulement comme des matériaux pollués et une source de transfert de contaminants, mais aussi comme des milieux de surface riches en nutriments et en diversité microbiennes, jeunes et aux conditions de vie extrêmes.
In urban area, stormwater are often collected and infiltrated towards infiltration basin (IB). Then, contamination could be transferred from city to groundwater resources. This study provides pieces of answer to the following issue: are the deposited sediment at the surface of IB during stormwater infiltration a contamination source? By characterization of various sediment samplings, the sediment biological and physicochemical state was shown to change with the hydric status of the IB. Aggregation was particularly studied. Influences of Organic Matter (OM), microorganism and low water content in aggregation processes were underlined. Preferential distribution of high molecular weight organic compounds and Cyanobacteria inside aggregates were notably observed. By the study of the mobile fraction of sediments when water pass through, we have shown that the ability of contaminant to be leached from sediments changes with the biological and physicochemical characteristics of the sediment. Particles, heavy metals, organic compounds and bacteria were highly leached from moist sediment than from dry one. Results demonstrated that not only water content is influent but also the hydrologic former history: leaching from recently disturbed sediment is higher. This work suggests to consider the sedimentary layer at the surface of IB not only as contaminated material and potential source of contamination but also as nutrient-rich, microbial-biodiverse, young and with extreme living conditions material.
In terms of biomass, the greatest migration in the world is the migration of Zooplankton .
Zooplankton migration is different because it moves up and down through the ocean's depths rather than traversing a landscape.
Climate Change: Implications for Fisheries and AquacultureECFoundation
The Fifth Assessment Report from the Intergovernmental Panel on Climate Change is the
most comprehensive and relevant analysis of our
changing climate. It provides the scientific fact base that will be used around the world to formulate climate policies in the coming years.
This document is one of a series synthesizing the most pertinent findings
of AR5 for specific economic and business sectors. It was born of the belief
that the fisheries and aquaculture sector could make more use of AR5, which is long and
highly technical, if it were distilled into an accurate, accessible, timely,
relevant and readable summary. Although the information presented here is a ‘translation’ of the key content relevant to this sector from AR5, this summary report adheres to the rigorous scientific basis of the original source material.
Grateful thanks are extended to all reviewers from both the science and
business communities for their time, effort and invaluable feedback on
this document. The basis for information presented in this overview report can be found
in the fully-referenced and peer-reviewed IPCC technical and scientific
background reports at: www.ipcc.ch
Distribution and influence of organic matter and microorganisms on aggregatio...Anne Laure Badin
Répartition et influence de la matière organique et des microorganismes sur l'agrégaiton et le relargage de polluants dans des sédiments issus de l'infiltration d'eaux pluviales urbaines
En ville, les eaux pluviales sont parfois collectées et infiltrées à travers des bassins d’infiltration (BI). Cette pratique pourrait conduire au transfert de pollution de la ville vers les nappes d’eaux souterraines. Cette étude a eu pour but d’apporter des éléments de réponse à la question suivante : les sédiments déposés à la surface des BI par l’infiltration des eaux pluviales constituent-ils une source de pollution ? Par la caractérisation biophysicochimique de différents prélèvements de sédiments, nous avons montré que l’état physicochimique et biologique de la couche sédimentaire évolue en fonction de l’état hydrique des BI. L’agrégation a été particulièrement étudiée. Les rôles agrégeant de la matière organique, de certains microorganismes et des faibles teneurs en eau ont été soulignés. Nous avons notamment observé la distribution préférentielle de molécules organiques de haut poids moléculaires et de Cyanobactéries dans les agrégats. Par l’étude de la fraction mobilisable lors du passage de l’eau, nous avons montré que l’état physicochimique et biologique des sédiments influence leurs capacités de relargage de contaminants. La mobilisation de particules, de contaminants métalliques, organiques et de bactéries est plus importante à partir de sédiments humides. Plus que la seule teneur en eau, l’historique hydrologique récent des sédiments semble un paramètre déterminant leur capacité de relargage : récemment perturbés, ils relargueraient plus. Cette thèse invite à considérer les sédiments issus de l’infiltration des eaux pluviales non plus seulement comme des matériaux pollués et une source de transfert de contaminants, mais aussi comme des milieux de surface riches en nutriments et en diversité microbiennes, jeunes et aux conditions de vie extrêmes.
In urban area, stormwater are often collected and infiltrated towards infiltration basin (IB). Then, contamination could be transferred from city to groundwater resources. This study provides pieces of answer to the following issue: are the deposited sediment at the surface of IB during stormwater infiltration a contamination source? By characterization of various sediment samplings, the sediment biological and physicochemical state was shown to change with the hydric status of the IB. Aggregation was particularly studied. Influences of Organic Matter (OM), microorganism and low water content in aggregation processes were underlined. Preferential distribution of high molecular weight organic compounds and Cyanobacteria inside aggregates were notably observed. By the study of the mobile fraction of sediments when water pass through, we have shown that the ability of contaminant to be leached from sediments changes with the biological and physicochemical characteristics of the sediment. Particles, heavy metals, organic compounds and bacteria were highly leached from moist sediment than from dry one. Results demonstrated that not only water content is influent but also the hydrologic former history: leaching from recently disturbed sediment is higher. This work suggests to consider the sedimentary layer at the surface of IB not only as contaminated material and potential source of contamination but also as nutrient-rich, microbial-biodiverse, young and with extreme living conditions material.
Tout savoir sur la plateforme de recherche Tox - Ecotox
A ROVALTAIN, TOUT PRÈS DE LA GARE TGV, LES
TRAVAUX DE CONSTRUCTION DE LA PLATEFORME
EUROPÉENNE DE RECHERCHE EN ÉCOTOXICOLOGIE
ET TOXICOLOGIE ENVIRONNEMENTALE ONT DÉBUTÉ.
UN GRAND ÉQUIPEMENT QUI FAIT DE LA DRÔME
UNE PLACE INCONTOURNABLE DANS LE DOMAINE
ENVIRONNEMENT-SANTÉ.
Présentation utilisée dans le cours de science et technologie de secondaire 4.
Contenu :
Étude du vivant : écotoxicologie, seuil de toxicité, dose létale, bioconcentration et bioaccumulation.
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2. Presentation Outline
Introduction
Benthic Macroinvertebrates
Macroinvertebrates as Indicators
Benthic Index of Biotic Integrity (I-IBI)
Macroinvertebrates Sampling- The
Basics
Common Macroinvertebrates
References
3. Introduction
Clean water is essential to life.
Adverse changes to the water
quality of one stream can
impact all the bodies of water
downstream – rivers, lakes, or
even the ocean. When water
quality degrades, changes to
plant, invertebrate, and fish
communities may occur and
affect the entire food chain.
4. • Through water quality monitoring, communities can
assess the health of their streams and rivers over
time. Once baseline data on the health of a stream
is collected, subsequent monitoring can help
identify when and where pollution incidents occur.
• Water quality can be assessed using chemical
sampling or biological sampling.
• Biological water quality monitoring involves
collecting samples of aquatic benthic
macroinvertebrates.
5. Benthic Macroinvertebrates
(bottom-dwelling) (animals w/o backbones visible to naked eye)
Heptageniidae sp. Hydropsyche sp. Perlodidae sp.
(Mayfly larva) (Caddisfly larva) (Stonefly larva)
Macroinvertebrates are useful indicators of the health or condition of
wetlands and other water bodies. They respond to many kinds of
pollution, including chemical pollution and physical disturbance to
the landscape around the site, wetland structure, and hydrology.
There are several advantages of using macroinvertebrates.
Great candidates for biological monitoring…
8. 3 Categories of Stream Macroinvertebrates
Group 1 – pollution sensitive
(require higher DO, neutral pH, cold water)
Tolerance Index : 1-3
Ex. mayflies, stoneflies, caddisflies
Group 2 – somewhat pollution tolerant
Tolerance Index : 4-7
Ex. scuds, dragonflies, damselflies
Group 3 – pollution tolerant
(can tolerate low oxygen, lower/higher pH, warmer water)
Tolerance Index : 8-10
Ex. leeches, aquatic worms, midge larva
9. The Tolerance Index (0 – 10)
Classifies macroinvertebrates according to their sensitivity to
pollution. This is used world-wide as a means of assessing
biological assemblages .
0 10
most pollution sensitive most pollution tolerant
e.g. Stoneflies e.g. Midges & Leeches
require high DO, clear contain hemoglobin, tolerate lower DO,
water, rocky cobble prefer soft substrate, less sensitive to
substrate, not found in toxins, found them in areas with high
areas of high sedimentation sedimentation, Eutrophication and poor
or Eutrophication. water quality
10. Biological Integrity
“the ability to support and maintain a balanced,
integrated, and adaptive community of organisms
having a species composition, diversity and
functional organization comparable to those of
natural habitats within a region" *
*
(Karr,1981)
12. Benthic Index of Biotic Integrity
(B-IBI)
• Index based on macroinvertebrates samples that
integrates several parameters to produce an overall
“health score” for a given water body
Result: dose-response curves to human impact
e.g. Taxa Generalized Plot of B-IBI
richness, Scores vs. Human Impact
relative
abundance of
certain taxa,
feeding groups
er oc SI B
I
e.g. Pollution,
habitat
Human Impact
degradation,
flow alteration
13. EPA’s Suggestions for IBI Use*
• Nonpoint Source Pollution Assessment
• Watershed Protection
• Total Maximum Daily Load (TMLD) Process
• Ecological Risk Assessment
• Development of Water Quality Criteria and
Standards
* Barbour et al., 1999
14. Macroinvertebrate Sampling: The
Basics
• Identify the goal – How
will the data be used?
– Regulatory purposes
– Detect trends
– Screening purposes
– Educational programs
• The goal should guide
your sample design and
dictate your methods
16. Sample collection
1 . Qualitative: to find out different taxa, mesh size hand net are used
2.Quantitative: to find out number of organisms, abundance, density,
frequency etc., Grab sampler and Multi-Habitat Sampler(MHS) are
used.
17. • Quantitative by Multi-Habitat Sampling (MHS) approach*, this
includes 20 sampling units taken from all habitat types at the
sampling site, each with a share of at least 5 % coverage.
• A total of 20 samples are taken and a single composite sample
is prepare.
*A habitat assessment protocol for each site (ASSESS HKH project, 2006).
18. Sample processing and preservation
• stirred the sample in water filled bucket and sieve floated animals with
net of mesh size 500 micrometer.
• transferred into plastic bottles.
• label the bottle with site location and date.
• preserve at 4% formalin.
19. Sorting and Identification
• After a week of preservation in
formaldehyde.
• The sample is washed
thoroughly by using mesh size
of 0.5mm and kept in white
enameled tray.
• Animals visible with necked
eyes were picked and kept in
various petridishes depending
on various morphological forms.
• Finally the animals were
identified up to the family level
by using the key books.
Classifies macroinvertebrates according to their sensitivity to pollution For example: * Stoneflies require high DO, clear water, rocky cobble substrate to cling onto. So, they are not found in areas of high sedimenation or eutrophication. (Their absence is meaningful—at least tells us which conditions are not present). * Midges & Leeches contain hemoglobin and therefore don’t need as much oxygen in their environment. They prefer soft substrates to burrow into and have a high tolerance to toxins. Therefore, we find them in areas with high sedimentation, eutrophication and poor water quality
Foundation concept of IBI Provides reasoning for individual component metrics, most of which have to do with species composition (taxa richness, relative abundance of different taxa)
generalized plot of what we would expect to occur—IBI scores decrease with increasing human impact both are comprised of various components—IBI score is includes information about taxa richness and the types of organisms found. Human impact can encompass a wide range of measurements including impervious cover and various types of land use.
TMDL—total maximum daily load NPDES—National Pollutant Discharge Elimination System EPA suggests these uses, but can IBI scores withstand scrutiny enough to be implemented in these programs?