Rheoreaction of Some Juvenile Cyprinids During Autumn Contranatant Migration

D. S. Pavlov,V. V. Kostin,A. O. Zvezdin,D. A. Prozorov, S. A. Podolyako

Journal of Ichthyology（2020）

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摘要

— The contranatant migration of juvenile cyprinids was studied in the Volga River delta in September–November 2016. A motivational component of rheoreaction (the ratio of rheoreaction types) of migrating and nonmigrating juveniles was evaluated in the course of experiments. It is shown that the motivational component of rheoreaction is a behavioral mechanism of contranatant migration.

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关键词

Cyprinidae,juveniles,contranatant migration,wintering migration,migration mechanisms,rheoreaction,types of rheoreaction,Volga River delta

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