Russian Journal of Ecolog); Vol. 31, No. 3, 2000, pp. 207-208. Translated from Ekologiya, No. 3, 2000, pp. 228-230. Original Russian Text Copyright 9 2000 by Ostnmmov. SHORT COMMUNICATIONS A Role of Chemical Signals in the Induction of Spawning Migration in Chum Salmon Oncorhynchus keta (Waldbaum) V. A. Ostroumov Research Institute of Biology, lrkutsk State University, ul. Lenina 3, Irkutsk, 664003 Russia Received April 28, 1998 Key words: spanning, migration, sex pheromones, attractants, chum salmon Problems of animal communication and the analysis in the same way as the testes extract. The mixture con- of mechanisms of chemical communication at the etho- tained equal proportions of ovarian and testes extracts. logical level are topical in ecology and in its new This method for preparing extracts of gonad extracts branch---chemical ecology. Chemical signals play an was tested in our previous studies on the role of chem- important role at the different stages of fish reproduction. ical signals in the reproduction of Baikal cisco Corego- One of the functions of these signals is to attract males nus autumnalis migratorius (Ostroumov and Dmit- and females to each other and to synchronize spawning rieva, 1990), (Stacey et al., 1986). In salmonids, the role of
Russian Journal of Ecology – Springer Journals
Published: Nov 21, 2007
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