期刊
JOURNAL OF FISH BIOLOGY
卷 63, 期 6, 页码 1365-1382出版社
WILEY
DOI: 10.1111/j.1095-8649.2003.00241.x
关键词
fish morphometry; swimming velocity; time-to-fatigue; turbulence
A simple relationship for the inanga Galaxias maculatus swimming velocity is suggested and tested in low and high turbulence channels. The relationship connects the swimming velocity with fish Reynolds and Froude numbers and can be used in both ecological analysis (e.g. habitat requirements) and management strategies (e.g. fishways design). Contrary to some previous studies and intuition, effects of turbulence on swimming performance appeared to be negligible. The most likely explanation for this result relates to mechanics of fish-turbulence interactions that may be dependent on both the turbulence scales and energy. The data suggest that future studies of turbulence effects on fish behaviour should involve, in addition to turbulence energetics, consideration of fish dimensions in relation to the spectrum of turbulence scales. (C) 2003 The Fisheries Society of the British Isles
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