Title: Determinants of Habitat Use in Large Roach
Authors: SCHULZE TorstenDOERNER HENDRIKHOELKER FRANZMEHNER Thomas
Citation: JOURNAL OF FISH BIOLOGY vol. 69 p. 1136-1150
Publisher: BLACKWELL PUBLISHING
Publication Year: 2006
JRC Publication N°: JRC31191
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC31191
Type: Articles in Journals
Abstract: Habitat choice and migration behaviour of large roach in relation to its predators has rarely been investigated in natural systems so far. In the present study, the occurrence of large roach was negatively coupled with the occurrence of potential predators. The behavioural response to predators of roach was clearly length-dependent, since the patterns of diel habitat choice differed between large and small roach. For lake-wide estimates of trophic interactions, it is therefore highly recommended to separate size groups of prey, since size dependent trait changes may impact habitat-specific resources in a contrasting way.
JRC Institute:Institute for the Protection and Security of the Citizen

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