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Journal Article

No sibling odor preference in juvenile three-spined sticklebacks.


Milinski,  Manfred
Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Steck, N., Wedekind, C., & Milinski, M. (1999). No sibling odor preference in juvenile three-spined sticklebacks. Behavioral Ecology, 10(5), 493-497.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-E07F-0
Laboratory-bred juvenile three-spined sticklebacks from II sibships did not prefer to shoal with their siblings when they were offered the choice between odor from unfamiliar siblings and non-kin in a fluviarium, although the power for finding a significant preference was very high (0.99). The test fish preferred the side where odor from the heavier shoal was supplied; this shows that they could appreciate odor cues from conspecifics in our apparatus and should have preferred their siblings if such a preference exists. Our results are compatible with theoretical predictions but are at variance with previous findings by other authors. We used independent replicates in a blind protocol with strict randomization of fish and procedures.