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The Aggression‐releasing Effect of the Eye‐like Spot of the Oyanirami Coreoperca kawamebari , a Freshwater Serranid Fish
Author(s) -
Kohda Yasutoshi,
Watanabe Munetaka
Publication year - 1990
Publication title -
ethology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.739
H-Index - 74
eISSN - 1439-0310
pISSN - 0179-1613
DOI - 10.1111/j.1439-0310.1990.tb00793.x
Subject(s) - fish <actinopterygii> , aggression , freshwater fish , biology , zoology , fishery , psychology , developmental psychology
An aggressive oyanirami, a freshwater fish, makes its opercular eye‐like spots conspicuous and spreads the gill covers to its rival. The eye‐spot is a main component of the color pattern of an aggressive fish. The color pattern releases aggressive actions of a conspecific fish. Using dummies, we found that the presence of the eye‐spot was important to aggression‐releasing, and this was independent of its location.