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Pike predators induce morphological changes in young perch and roach
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Limnology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Limnology.
2007 (English)In: Journal of Fish Biology, ISSN 0022-1112, E-ISSN 1095-8649, Vol. 70, no 1, 155-164 p.Article in journal (Refereed) Published
Abstract [en]

The morphological response of two 1 year-old prey species, perch Perca fluviatilis and roach Rutilus rutilus to the presence of predatory pike Esox lucius, was tested in a 6 week aquarium experiment. The growth of perch was higher than that of roach but there was no difference in growth of prey between predator and control treatments. The presence of pike caused morphological changes in both perch and roach. Perch showed an increase in body depth during the experiment whereas the morphological response of roach to pike was more related to a displacement of the dorsal and pelvic fins and width of the anal fin. Differences in morphological responses of perch and roach to pike can be interpreted by their overall differences in antipredator strategies.

Place, publisher, year, edition, pages
2007. Vol. 70, no 1, 155-164 p.
Keyword [en]
chemical cues, Esox, Perca, phenotypic plasticity, predation, Rutilus
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:uu:diva-23509DOI: 10.1111/j.1095-8649.2006.01283.xISI: 000244096000011OAI: oai:DiVA.org:uu-23509DiVA: diva2:51283
Available from: 2007-01-30 Created: 2007-01-30 Last updated: 2017-12-07Bibliographically approved

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Eklöv, Peter

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