Research article - Peer-reviewed, 2017
Feeding range of age 1+ year Eurasian perch Perca fluviatilis in the Baltic Sea
Bergendahl, I. Ahlbeck; Holliland, P. B.; Hansson, S.; Karlof, O.Abstract
Using the widespread Eurasian perch Perca fluviatilis as a model organism, feeding ranges were investigated using stable-isotope ratios (N-15 and C-13) and body condition. Differences were found between closely located sampling sites in a littoral area without obvious migration barriers, indicating that individual fish had small feeding ranges. Body condition differences between sampled stations were consistent over 4 years. Such sedentary behaviour is important to consider in, e.g. fisheries management and environmental monitoring, as local catch regulations may be meaningful or geographic stability in sampling locations may reduce noise in data.Keywords
body condition; food web; littoral; sedentary; spatial scale; stable isotopesPublished in
Journal of Fish Biology2017, volume: 90, number: 5, pages: 2060-2072
Publisher: WILEY
Authors' information
Stockholm University
Holliland, Per B. (Holliland, Per)
Stockholm University
Hansson, Sture
Stockholm University
Karlöf, O.
Stockholm University
UKÄ Subject classification
Ecology
Fish and Wildlife Management
Publication Identifiers
DOI: https://doi.org/10.1111/jfb.13285
URI (permanent link to this page)
https://res.slu.se/id/publ/83529