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Message: <blockquote data-quote="riverfisher" data-source="post: 35582" data-attributes="member: 802"><p><span style="color: #333333"><span style="font-family: 'Arial'">this is what i found </span></span></p><p><span style="color: #333333"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: #333333"><span style="font-family: 'Arial'">Swimming performance of walleye (</span></span><em>Stizostedion vitreum) from a wild population was measured relative to fork length (0.18-0.67 m) and water temperature (5.8-20.5°C), to provide models for setting water velocities in fishways and culverts. Ucrit[SUB]60[/SUB] (the highest speed maintainable for 60 min) values ranged from 0.30 to 0.73 m/s and increased significantly with length and temperature. Ucrit[SUB]10[/SUB] (the highest speed maintainable for 10 min) values ranged from 0.43 to 1.14 m/s and also increased significantly with fish length and water temperature. When startled, walleye were able to attain higher speeds (1.60-2.60 m/s) during short (temperature-independent) bursts of swimming activity. The relatively low Ucrit[SUB]60[/SUB] values suggest that walleye possess a narrow scope for aerobic activity compared with other species, which may account for their poor performance in fishways. However, the small differences between Ucrit[SUB]60[/SUB] and Ucrit[SUB]10[/SUB]values and the large differences between Ucrit[SUB]10[/SUB] and fast-start performance suggest that low passage efficiency may be caused by a behavioural disinclination to switch from low to high intensity activity.</em></p><p><em></em></p><p><em></em>so in English for a long distance they can got .5mph to 1.5mph and short burst 3.5mph to 6mph</p></blockquote><p></p>

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