Diet and prey size spectrum of pikeperch in lakes in central Finland

The stomach content of pikeperch Sander lucioperca was studied in 24 lakes in central Finland. The most important prey species was smelt Osmerus eperlanus then perch Perca fluviatilis. The proportion of cyprinids as prey increased with pikeperch total length (LT) and lake phosphorus content. Prey LT...

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Bibliographic Details
Published in:Journal of fish biology 2004-10, Vol.65 (4), p.1147-1153
Main Authors: Keskinen, T., Marjomäki, T. J.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Biological and medical sciences
diet
Fundamental and applied biological sciences. Psychology
Osmerus eperlanus
Perca fluviatilis
phosphorus
pikeperch
prey length
Sander lucioperca
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
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Summary:The stomach content of pikeperch Sander lucioperca was studied in 24 lakes in central Finland. The most important prey species was smelt Osmerus eperlanus then perch Perca fluviatilis. The proportion of cyprinids as prey increased with pikeperch total length (LT) and lake phosphorus content. Prey LT and pikeperch LT correlated positively, but the prey‐to‐predator size ratio correlated negatively with pikeperch LT.
ISSN:0022-1112
1095-8649
DOI:10.1111/j.0022-1112.2004.00500.x