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Behavioural responses of prey fishes to habitat complexity and predation risk induce bias in minnow trap catches
Author(s) -
Dupuch A.,
Paradis Y.,
Magnan P.
Publication year - 2011
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2011.03029.x
Subject(s) - minnow , predation , biology , habitat , ecology , trap (plumbing) , predator , fishery , fish <actinopterygii> , environmental science , environmental engineering
The effects of predation risk and habitat complexity on the efficiency of minnow traps to catch northern redbelly dace Chrosomus eos in laboratory experiments were investigated. Trap efficiency significantly decreased in the presence of vegetation and predators. These results suggest that the various antipredator behaviours used by prey fishes can affect trap efficiency.