Russian Journal of Ecology, Vol. 33, No. 2, 2002, pp. 129–130. Translated from Ekologiya, No. 2, 2002, pp. 142–143. Original Russian Text Copyright © 2002 by Ardashev, Gavrenkov. SHORT COMMUNICATIONS Influence of Stocking Rate on the Level of Stress Hormones and the Survival of the Progeny in Coho Salmon, Oncorhynchus kisutch (Walbaum) A. A. Ardashev and Yu. I. Gavrenkov Paciﬁc Research Fishery Center, tupik Shevchenko, Vladivostok, 690950 Russia Received April 17, 2000 Key words: population density, stress, self-regulation, 11-hydroxycorticosteroids. Populations of many species of Paciﬁc anadromous eter (p < 0.001) occurred at a stocking rate of 2 ind./m , salmons possessing a high reproductive capacity are and its values proved to be still higher at a stocking rate known to manifest cyclic ﬂuctuations of abundance. of 4 ind./m . It is noteworthy that the contents of There is evidence that intrapopulation mechanisms, 11-HCS were slightly higher in females than in males. along with abiotic factors, have an important role in these The same regularity in the increase of the blood level of phenomena (Ardashev, 1979, 1988; Podlesnykh, 1995, stress hormones was noted in spawners of chum salmon 1997). The corresponding concept is based on the (Podlesnykh and Ardashev, 1990),
Russian Journal of Ecology – Springer Journals
Published: Oct 13, 2004
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