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Kinship affects innate responses to a predator in bluegill Lepomis macrochirus larvae
Author(s) -
Hain T.J.A.,
Neff B.D.
Publication year - 2009
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2009.02343.x
Subject(s) - biology , kinship , larva , lepomis macrochirus , predator , zoology , group cohesiveness , kin selection , ecology , predation , fishery , fish <actinopterygii> , social psychology , psychology , political science , law
Naïve kin groups and mixed‐family groups of bluegill Lepomis macrochirus larvae were exposed to a novel predator cue. The larvae responded by increasing shoal cohesiveness in kin groups but not in mixed‐family groups; moreover, larvae sired by males of the ‘cuckolder’ life history tended to have an enhanced ability to respond to direct cues of kinship v . larvae sired by males of the ‘parental’ life history, which instead appeared to respond to cues of life history rather than relatedness per se . The increased shoal cohesion among related individuals probably confers a survival benefit and indicates that the antipredatory shoaling response is innate in L. macrochirus .