The assessment of the adult escapement of the Ozernaya River sockeye salmon (Oncorhynchus nerka) with the hydroacustic method
https://doi.org/10.15853/2072-8212.2020.56.63-73
Abstract
Results of in situ testing of BioSonics DT-X and Didson hydroacustic systems set on migrating path to spawning grounds of adult sockeye salmon in the Ozernaya River are presented. Two million 374 thousand fishes was recognized and counted for the whole working period of the systems, including one million 276 thousand individuals registered by BioSonics DT-X echo-sounder and 1 million 98 thousand – by Didson imaging sonar. The data on the assessment of Pacific salmon escapement in the Ozernaya River allow to make recommendations on the use of the BioSonics DT-X and Didson hydroacustic systems as a tool for assessment of Pacific salmon escapement in rivers of Kamchatka.
About the Authors
K. M. MalykhRussian Federation
Head of Laboratory
683000 Petropavlovsk-Kamchatsky, Naberezhnaya Str., 18
Tel., fax: +7 (4152) 20-16-10, 41-27-01
D. V. Demchenko
Russian Federation
Leading Research Ingineer
683000 Petropavlovsk-Kamchatsky, Naberezhnaya Str., 18
Tel., fax: +7 (4152) 20-16-10, 41-27-01
V. A. Dubynin
Russian Federation
Leading Scientist
683000 Petropavlovsk-Kamchatsky, Naberezhnaya Str., 18
Tel., fax: +7 (4152) 20-16-10, 41-27-01
M. N. Kovalenko
Russian Federation
Deputy Director, Ph. D. (Engineering)
683000 Petropavlovsk-Kamchatsky, Naberezhnaya Str., 18
Tel., fax: +7 (4152) 20-16-10, 41-27-01
References
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Review
For citations:
Malykh K.M., Demchenko D.V., Dubynin V.A., Kovalenko M.N. The assessment of the adult escapement of the Ozernaya River sockeye salmon (Oncorhynchus nerka) with the hydroacustic method. The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean. 2020;1(56):63-73. (In Russ.) https://doi.org/10.15853/2072-8212.2020.56.63-73