Stream Crossings I: Does Light in Culverts Affect Movement of Topeka Shiner and Other Fishes?

Transcription

1 University of Massachusetts - Amherst ScholarWorks@UMass Amherst International Conference on Engineering and Ecohydrology for Fish Passage International Conference on Engineering and Ecohydrology for Fish Passage 2016 Jun 22nd, 9:00 AM - 9:15 AM Stream Crossings I: Does Light in Culverts Affect Movement of Topeka Shiner and Other Fishes? Britney Mosey University of Minnesota - Twin Cities Jay Hatch University of Minnesota - Twin Cities Jessica Kozarek University of Minnesota - Twin Cities Follow this and additional works at: Mosey, Britney; Hatch, Jay; and Kozarek, Jessica, "Stream Crossings I: Does Light in Culverts Affect Movement of Topeka Shiner and Other Fishes?" (2016). International Conference on Engineering and Ecohydrology for Fish Passage This Event is brought to you for free and open access by the The Fish Passage Community at UMass Amherst at ScholarWorks@UMass Amherst. It has been accepted for inclusion in International Conference on Engineering and Ecohydrology for Fish Passage by an authorized administrator of ScholarWorks@UMass Amherst. For more information, please contact scholarworks@library.umass.edu.

2 DOES LIGHT IN CULVERTS AFFECT MOVEMENT OF TOPEKA SHINER AND OTHER FISHES? Britney Mosey Jay Hatch Jessica Kozarek University of Minnesota-Twin Cities

3 TOPEKA SHINER HABITAT Federally endangered Inhabit off-channel oxbows and excavated pools Major threats: stream alteration, sedimentation, increasing water temperatures, exotic predators

4 HOW DO CULVERTS IMPACT FISH PASSAGE? Physical Flow depth Flow velocity Perched Pool depth Turbulence

5 HOW DO CULVERTS IMPACT FISH PASSAGE? Physical Flow depth Flow velocity Perched Pool depth Turbulence Behavioral LIGHT? Picture of dark culvert

6 STUDY AREA 3 Culverts 3 Controls Mark-recapture May-August visits per site

7 EXPERIMENTAL SETUP

8 EXPERIMENTAL SETUP

9 EXPERIMENTAL SETUP

10 EXPERIMENTAL SETUP

11 MARK-RECAPTURE Bigmouth Shiner 18,963 fish tagged 456 Topeka Shiner tagged 1874 fish recaptured 46 Topeka Shiner recaptured Recapture Rate: 10% Mark Key Tag Color Caught Released BLUE Upstream Upstream YELLOW Downstream Downstream ORANGE Upstream Downstream RED Downstream Upstream

12 CULVERT PARAMETERS Poplar Creek: 37 m Elk Creek: 47 m Split Rock Tributary: 63 m Poplar Elk Split Rock

13 LIGHT LEVELS

14 LIGHT LEVELS Unobstructed Daylight

15 LIGHT LEVELS Mid-point of culvert

16 LIGHT LEVELS Poplar Creek Reduction: 67%

17 LIGHT LEVELS Elk Creek Reduction: 77%

18 LIGHT LEVELS Split Rock Tributary Reduction: 77%

19 FISH PASSAGE

20 FISH PASSAGE

21 FISH PASSAGE Light Reduction 67% 77% 99%

22 FISH PASSAGE Mark Key Tag Color Caught Released BLUE Upstream Upstream YELLOW Downstream Downstream ORANGE Upstream Downstream RED Downstream Upstream

23 FISH PASSAGE Relocated Fish Mark Key Tag Color Caught Released BLUE Upstream Upstream YELLOW Downstream Downstream ORANGE Upstream Downstream RED Downstream Upstream

24 CYPRINID DATA

25 CYPRINID DATA

26 CYPRINID DATA

27 CONCLUSIONS Light in culverts reduced to twilight or darker Two culverts significant reduction in fish passage Reduction related to lower light levels Similar pattern in Cyprinids and most abundant species Relocated fish more likely to move Highest probability in fish moving upstream

28 CONCLUSIONS Light in culverts reduced to twilight or darker Two culverts significant reduction in fish passage Reduction related to lower light levels Similar pattern in Cyprinids and most abundant species Relocated fish more likely to move Highest probability in fish moving upstream Topeka Shiner

29 CONCLUSIONS CANNOT SEPARATE EFFECTS OF LIGHT LEVELS AND LENGTH OF CULVERT

30 CURRENT WORK Controlled laboratory experiment 3 variable light levels Wild fathead minnows and farm-raised Topeka Shiners

31 ACKNOWLEDGEMENTS Field Assistance: Greenwood Champ, Jenny Chapman, Sam Finnerty, Kyle Fleming, Sean Johnston, Chris Jorgensen, Konrad Schmidt, Marcy Mead, and Chakong Thao Analysis Assistance: Sandy Weisberg Funding provided by Minnesota Department of Transportation

32 QUESTIONS? Britney Mosey