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Untersuchungen zum Aggressionsverhalten von Poecilia sphenops (Pisces, Poeciliidae) vor der Geschlechtsreife 3
Author(s) -
Franck Dierk,
Marek Jürgen,
Winter Wolfgang
Publication year - 2010
Publication title -
zeitschrift für tierpsychologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.739
H-Index - 74
eISSN - 1439-0310
pISSN - 0044-3573
DOI - 10.1111/j.1439-0310.1978.tb01443.x
Subject(s) - poecilia , poeciliidae , ontogeny , zoology , biology , fish <actinopterygii> , sexual maturity , biting , psychology , ecology , fishery , endocrinology
After 14 days of social isolation, half‐grown Poecilia sphenops still showed no sexual activity but an increase in biting and tail beating. In relation to this result data on diurnal rhythms of the observed activities, the biological significance of the aggressivity in immature fish, and the ontogeny of the aggressive and sexual behaviour are presented. In contrast to the aggressive behaviour no sexual activity could be observed before maturity.