Diurnal shifts in use of summer habitat by age-0 brown trout in a regulated mountain stream |
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| Authors: | Wayne A Hubert Douglas D Harris Thomas A Wesche |
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| Institution: | (1) US Fish and Wildlife Service, Wyoming Cooperative Fish and Wildlife Research Unit, University of Wyoming, 82071 Laramie, Wyoming, USA;(2) Department of Range Management and Wyoming Water Resources Center, University of Wyoming, 82071 Laramie, Wyoming, USA |
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| Abstract: | Diurnal shifts in habitat use by age-0 (< 50 mm total length) brown trout (Salmo trutta) were observed from June to July 1989 and 1990 in low-gradient (< 1% channel slope) reaches of Douglas Creek, Medicine Bow National Forest, Wyoming. Fish were visually located during day and night, and water depth, water velocity, distance from the stream edge, substrate, habitat type, and cover were determined at each location. The fish were found predominantly in locations with slow water velocities in stream-margin and backwater-pool habitats. They were observed in slower water, closer to the stream edge at night than during the day. |
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| Keywords: | Subalpine stream brown trout Salmo trutta habitat |
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