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Responses of Bluegills and Black Crappies to Dissolved Oxygen, Temperature, and Current in Backwater Lakes of the Upper Mississippi River during Winter

1995; Wiley; Volume: 15; Issue: 2 Linguagem: Inglês

10.1577/1548-8675(1995)015 2.3.co;2

1548-8675

Brent C. Knights, Barry L. Johnson, Mark B. Sandheinrich,

Hydrology and Sediment Transport Processes

North American Journal of Fisheries ManagementVolume 15, Issue 2 p. 390-399 Article Responses of Bluegills and Black Crappies to Dissolved Oxygen, Temperature, and Current in Backwater Lakes of the Upper Mississippi River during Winter Brent C. Knights, Brent C. Knights National Biological Service, Upper Mississippi Science Center, Post Office Box 818, La Crosse, Wisconsin, 54602 USASearch for more papers by this authorBarry L. Johnson, Barry L. Johnson National Biological Service, Upper Mississippi Science CenterSearch for more papers by this authorMark B. Sandheinrich, Mark B. Sandheinrich University of Wisconsin–La Crosse, River Studies Center, La Crosse, Wisconsin, 54601 USASearch for more papers by this author Brent C. Knights, Brent C. Knights National Biological Service, Upper Mississippi Science Center, Post Office Box 818, La Crosse, Wisconsin, 54602 USASearch for more papers by this authorBarry L. Johnson, Barry L. Johnson National Biological Service, Upper Mississippi Science CenterSearch for more papers by this authorMark B. Sandheinrich, Mark B. Sandheinrich University of Wisconsin–La Crosse, River Studies Center, La Crosse, Wisconsin, 54601 USASearch for more papers by this author First published: May 1995 https://doi.org/10.1577/1548-8675(1995)015 2.3.CO;2Citations: 31AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract We conducted a radiotelemetry study to examine the effects of dissolved oxygen (DO), water temperature, and current velocity on winter habitat selection by bluegills Lepomis macrochirus and black crappies Pomoxis nigromaculatus in the Finger Lakes backwater complex, Pool 5, on the upper Mississippi River. When DO was above 2 mg/L, both species selected areas with water temperature greater than 1°C and undetectable current. As dissolved oxygen concentrations fell below 2 mg/L, fish moved to areas with higher DO, despite water temperatures of 1°C and lower and current velocities of 1 cm/s. Areas with water temperature less than 1°C and current velocity greater than 1 cm/s were avoided. To incorporate the winter habitat requirements of bluegills and black crappies into habitat restoration projects, we recommend designs that allow the inflow of oxygenated water to maintain adequate DO without substantially decreasing temperature and increasing current velocity. Citing Literature Volume15, Issue2May 1995Pages 390-399 RelatedInformation