title: Feeding range of age 1+ year Eurasian perch Perca fluviatilis in the Baltic Sea.
abstract: Using the widespread Eurasian perch Perca fluviatilis as a model organism, feeding ranges were investigated using stable-isotope ratios (δ15N and δ13C) 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.
authors.affiliation: Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91, Stockholm, Sweden.
authors.forename: I
authors.initials: I
authors.lastname: Ahlbeck Bergendahl
authors.affiliation: Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91, Stockholm, Sweden.
authors.forename: P B
authors.initials: PB
authors.lastname: Holliland
authors.affiliation: Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91, Stockholm, Sweden.
authors.forename: S
authors.initials: S
authors.lastname: Hansson
authors.affiliation: Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91, Stockholm, Sweden.
authors.forename: O
authors.initials: O
authors.lastname: Karlöf
mesh_terms: D000818:Animals; D001824:Body Constitution; D017753:Ecosystem; D005247:Feeding Behavior; D020387:Food Chain; D006702:Homing Behavior; D009792:Oceans and Seas; D010471:Perches / Q000033:anatomy & histology / Q000502:physiology*; D013548:Sweden
keywords: body condition; food web; littoral; sedentary; spatial scale; stable isotopes