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An interesting problem relevant to all benthic fish. But I guess it
depends if you wish to measure their pelagic swimming speed or the
current speed they can endure in their natural benthic habitat. The
latter will also vary depending on the bed roughness.

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W R C Beaumont
Centre for Ecology & Hydrology Dorset
Winfrith Technology Centre
Winfrith Newburgh
Dorchester
Dorset DT2 8ZD
United Kingdom
Tel: 01305 213500
Direct line: 01305 213578
e-mail:[log in to unmask]
www.ceh.ac.uk
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