Strategic Aquatic Habitat     Conservation Opportunities for     Minnesota Lakes        Michael Duval        Peter Jacobso...
Primary Categories of Fish Habitat in Lakes       Physical Structure                   Water QualityProperties            ...
Photo: Eric Engbretson
Courtesy UW – Green Bay
Interaction of water       quality with fish species      140      a                        ab      120                   ...
Interaction ofwater quality withphysical habitats                                               Photo: Eric EngbretsonSche...
HIGHWatershed Disturbance                                               Restore watershed               Restore watershed ...
Land disturbance predicts WQ
Estimated     landdisturbancein local lakecatchments
Estimated statewidedisturbance   in lakewatersheds
Primary Categories of Fish Habitat in Lakes       Physical Structure                   Water QualityProperties            ...
Cumulative effects of shoreline development on           Lake Selection    fish habitat in northern Minnesota lakes      •...
Interim    estimated  riparian lake     habitat    conditionPreliminary analysesprovided by DonnaDustin, FisheriesResearch
HIGHWatershed Disturbance                                               Restore watershed               Restore watershed ...
Lake Habitat Condition Assessment                                                              Minnesota Lakes Fish Habita...
Habitat Condition Assessment                                                                 Minnesota Lakes Fish Habitat ...
Visualizing risk of WQ                                                100   habitat               Percent of Watershed Pro...
Ten Mile Lake Watershed           Owner          Acres      %    County                 7,106      27.9    State          ...
Protection example of reducing                                         WQ risk        100                    80           ...
What do we mean by partial       restoration?
Photos courtesy of Ramsey Washington Metro Watershed District
Restoration example of reducing     nearshore disturbance                                                            Minne...
Proposed Allocation of Resources           Section of Fisheries    60%                           40%  Protection          ...
Thank You!michael.duval@state.mn.us                           peter.jacobson@state.mn.us                            tom.jo...
Duval et al fish habitat
Duval et al fish habitat
Duval et al fish habitat
Duval et al fish habitat
Upcoming SlideShare
Loading in …5
×

Duval et al fish habitat

335 views

Published on

Published in: Technology, Sports
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
335
On SlideShare
0
From Embeds
0
Number of Embeds
6
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • The lakes in the study are tiered such that different lakes will get different levels of attention. All 100 lakes will be included in the GIS analysis, where, in addition to the development buffers that I already discussed, we will try various methods to characterize the lakeshore remotely. The GIS only lakes are shown in orange.30 Lakes (blue dots) will be visited and we will sample habitat and fish at a number of sites, and ground-truth the GIS results. At 12 lakes (green dots) we will collect habitat data for the entire lake, so that we can develop whole-lake models of the effects of various habitat scenarios.
  • Duval et al fish habitat

    1. 1. Strategic Aquatic Habitat Conservation Opportunities for Minnesota Lakes Michael Duval Peter Jacobson Tom Jones Minnesota Dept of Natural ResourcesMN Association of Conservation ProfessionalsCamp Ripley, MN March 2, 2012 Photo courtesy of Bill Lindner Photography
    2. 2. Primary Categories of Fish Habitat in Lakes Physical Structure Water QualityProperties Properties• vegetation • sedimentation• woody habitat • epiphytic algae• substrate • hypolimnetic oxygen • regime shifts Primary Disturbance DriversShoreline Watersheddisturbance from disturbance fromdevelopment urbanization and agriculture
    3. 3. Photo: Eric Engbretson
    4. 4. Courtesy UW – Green Bay
    5. 5. Interaction of water quality with fish species 140 a ab 120 b 100 bc c bcIBI 80 60 40 20 Forest Forest Ag/For Ag/For/ Urban Ag > 60% Urb Drake and Pereira 2002. North American Journal of Fisheries Management 22:1105-1123.
    6. 6. Interaction ofwater quality withphysical habitats Photo: Eric EngbretsonScheffer et al. 2001. Catastrophic shifts inecosystems. Nature 413:591-596.
    7. 7. HIGHWatershed Disturbance Restore watershed Restore watershed Protect shoreline Restore shoreline Threshold > Protect watershed Protect watershed Protect shoreline Restore shoreline LOW ^ LOW Threshold HIGH Shoreline Disturbance
    8. 8. Land disturbance predicts WQ
    9. 9. Estimated landdisturbancein local lakecatchments
    10. 10. Estimated statewidedisturbance in lakewatersheds
    11. 11. Primary Categories of Fish Habitat in Lakes Physical Structure Water QualityProperties Properties• vegetation • sedimentation• woody habitat • epiphytic algae• substrate • hypolimnetic oxygen • regime shifts Primary Disturbance DriversShoreline Watersheddisturbance from disturbance fromdevelopment urbanization and agriculture
    12. 12. Cumulative effects of shoreline development on Lake Selection fish habitat in northern Minnesota lakes • Northern Lakes & Forests • Mesotrophic, TP 12-30 ppb • High in watershed GOALS• Analyze shoreline development on 100 lakes• Determine and model local habitat impacts• Develop and test model to predict effects of shoreline development on fish 100 Lakes: GIS DNR U of M 30 Lakes: fish and habitat sites Donna Dustin Bruce Vondracek 12 Lakes: whole lake habitat Cindy Tomcko Jen Keville Jessie Lepore
    13. 13. Interim estimated riparian lake habitat conditionPreliminary analysesprovided by DonnaDustin, FisheriesResearch
    14. 14. HIGHWatershed Disturbance Restore watershed Restore watershed Protect shoreline Restore shoreline Threshold > Protect watershed Protect watershed Protect shoreline Restore shoreline LOW ^ LOW Threshold HIGH Shoreline Disturbance
    15. 15. Lake Habitat Condition Assessment Minnesota Lakes Fish Habitat Condition 100 Watershed Disturbance (% disturbed land use) 75 50 25 0 0 0.5 1 5 10 50 100 Shoreline Disturbance (% developed within 75m)
    16. 16. Habitat Condition Assessment Minnesota Lakes Fish Habitat Condition 100 Watershed Disturbance (% disturbed land use) 75 50 25 0 0 0.5 1 5 10 50 100 Shoreline Disturbance (% developed within 75m)
    17. 17. Visualizing risk of WQ 100 habitat Percent of Watershed Protected 80degradation 60 40 20 0 0 20 40 60 80 100 Watershed Disturbance (% disturbed land use)
    18. 18. Ten Mile Lake Watershed Owner Acres % County 7,106 27.9 State 5,342 20.9 Federal 6,154 24.1 Private 6,907 27.1 Total 25,510$400,000 for 530 acres of private forestconservation easements @$750/acrewould protect 75% of the total watershed
    19. 19. Protection example of reducing WQ risk 100 80 2011, added 1,000 acre SRA 2010, added 270 acre SNAPercent Protected 60 2009 Photo: Kristi Coughlin 40 PROTECTION RESTORATION 20 PARTIAL RESTORATION 0 0 20 40 60 80 100 Percent Disturbed
    20. 20. What do we mean by partial restoration?
    21. 21. Photos courtesy of Ramsey Washington Metro Watershed District
    22. 22. Restoration example of reducing nearshore disturbance Minnesota Lakes Fish Habitat Condition 100 Watershed Disturbance (% disturbed land use) 75 50 25 0 0 0.5 1 5 10 50 100 Shoreline Disturbance (% developed within 75m)
    23. 23. Proposed Allocation of Resources Section of Fisheries 60% 40% Protection Restoration
    24. 24. Thank You!michael.duval@state.mn.us peter.jacobson@state.mn.us tom.jones@state.mn.us

    ×