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Full-Text Articles in Life Sciences
Relating Metabolic Phenotypes To Movement Behavior In Brook Trout, Jacob E. Bowman
Relating Metabolic Phenotypes To Movement Behavior In Brook Trout, Jacob E. Bowman
All NMU Master's Theses
Brook trout movement-related life history strategies vary considerably and range from individuals that stay within the same 100 meters their entire life to individuals that are potamodromous or anadromous. Potential drivers of movement life histories have been the subject of much research in fish, with genetic subpopulation explanations often failing to explain the phenomenon. Metabolic phenotypes have been suggested as a possible driver for expression of different movement life histories. I investigated if metabolic phenotypes are related to movement strategies within a population of brook trout (Salvelinus fontinalis) in Unnamed Creek, a tributary to the Rock River, Alger …
Individual Variation In Winter Brook Trout (Salvelinus Fontinalis) Movement In A Small Northern Michigan Stream, Benjamin Bejcek
Individual Variation In Winter Brook Trout (Salvelinus Fontinalis) Movement In A Small Northern Michigan Stream, Benjamin Bejcek
All NMU Master's Theses
Winter is a time of year of low temperatures and limited food availability. Brook trout (Salvelinus fontinalis) survival in winter is dependent on several factors including their condition after spawning in the fall and possibly their behavior in winter. Ice that forms during winter can potentially aid in survival by decreasing predation risk, decreasing stress, and acting as a thermal refuge. The emphasis of this project was to evaluate the relationship between movement patterns of brook trout and winter ice distribution. In the fall of 2017 and again in the fall of 2018, brook trout in a northern Michigan stream …
Evaluation And Application Of Population Size Estimators To Assess Brook Trout (Salvelinus Fontinalis) Response To A Non-Native Salmonid Removal In A Small Michigan Coldwater Stream, Joseph P. Gerbyshak
Evaluation And Application Of Population Size Estimators To Assess Brook Trout (Salvelinus Fontinalis) Response To A Non-Native Salmonid Removal In A Small Michigan Coldwater Stream, Joseph P. Gerbyshak
All NMU Master's Theses
Non-native salmonids have been stocked into the Great Lakes since the 1870s and now naturalized populations use tributary environments to reproduce and for their juvenile life stage. Historically, brook trout were the only salmonid to inhabit the tributary environment and numerous studies suggest that exotic salmonids negatively affect brook trout by competing for limited resources. Other studies have been successful at removing non-native salmonids and the native populations increased. During this project 5,320 exotic salmonids were removed from a tributary of Lake Superior from 2008 to 2010 significantly reducing their density and young-of-year brook trout density increased by 260% the …