Release:Bulletin of Tyumen State University. Medico-Biological Sciences (№6). 2012
About the authors:Alexander G. Selyukov, Dr. Sci. (Biol.), Professor, Department of Zoology and Evolution Ecology of Animals, University of Tyumen; email@example.com
Abstract:The state of gonads in Arctic char and coregonids in the lakes of the Subarctic tundra of Gydan and Yamal peninsulas is investigated. There is used a technique of total accounting of oocytes using a laser scanning microscope. Despite the weak development of fodder base, high infestation by helminthes and a very short period of feeding, the studied fishes have no violations of gametogenesis, but some mature females pass the next spawning period. There is rapidly maturing (1+) lake form of siberian cisco detected (Yamal).