publication . Article . 2017

Importance of small fishes and invasive crayfish in otter Lutra lutra diet in an English chalk stream

Britton, J.R.; Berry, M.; Sewell, S.; Lees, C.; Reading, P.;
Open Access English
  • Published: 01 Jan 2017 Journal: Knowledge and Management of Aquatic Ecosystems (issn: 1961-9502, Copyright policy)
  • Publisher: EDP Sciences
Abstract
The diet composition of the European otter Lutra lutra was assessed using spraint analysis in the Hampshire Avon, a lowland chalk stream in Southern England, over an 18-month period. Small cyprinid fishes were the main prey item taken in all seasons, with bullhead Cottus gobio and stone loach Barbatula barbatula also important; there were relatively few larger fishes of interest to fisheries found. There were significant seasonal differences in diet composition by season, with signal crayfish Pacifastacus leniusculus only being prominent prey items in warmer months and amphibians in winter, revealing that non-fish resources were seasonally important dietary comp...
Subjects
free text keywords: SH1-691, conservation conflict, otter spraint, Barbus barbus, Aquaculture. Fisheries. Angling, angling
Related Organizations
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publication . Article . 2017

Importance of small fishes and invasive crayfish in otter Lutra lutra diet in an English chalk stream

Britton, J.R.; Berry, M.; Sewell, S.; Lees, C.; Reading, P.;