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- Title
Patterns of drift and power station entrainment of 0+ fish in the River Trent, England.
- Authors
Carter, K. L.; Reader, J. P.
- Abstract
Entrainment of 0+ riverine fish (mostly pelagic cyprinids) by a power station intake, and down-river drift over a nearby weir, followed the same pattern, occurring throughout the year and being greatest during the night in the first weeks of life (i.e. in summer), reaching a peak shortly after dusk. Entrainment and drift of benthic species, and of fish older than 0+, were negligible. Mortality following entrainment was 100%. Impingement of fish on the intake screens was negligible, probably because individuals larger than the screen mesh were able to escape the intake current. The species composition and length-frequencies of the drifting fish, but not their overall abundance, showed some variation with distance from the river margin. It is argued that the fish vulnerable to entrainment are those 0+ individuals which are dispersing in the river by drifting.
- Subjects
TRENT, River (Staffordshire-North Lincolnshire, England); ENGLAND; CYPRINIDAE; HYDROELECTRIC power plants; FISH populations
- Publication
Fisheries Management & Ecology, 2000, Vol 7, Issue 5, p447
- ISSN
0969-997X
- Publication type
Article
- DOI
10.1046/j.1365-2400.2000.00224.x