Influence of hydroacoustic noise from vessel on echo integration estimations of fish stocks and catchability of accounting trawl (on example of walleye pollock in the Okhotsk Sea)

Influence of hydroacoustic noise from vessel on echo integration estimations of fish stocks and catchability of accounting trawl (on example of walleye pollock in the Okhotsk Sea)

Previously, catchabilty of walleye pollock was estimated for the accounting trawl RT/TM 57/360 by results of acoustic measurements of fish density in the towed layer under fishing vessel. However, fish reaction to noise field ahead of vessel was not accounted in that experiment. Besides, distortion...

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Bibliographic Details
Main Authors: Michail Yu. Kuznetsov, Vladimir I. Poljanichko, Igor A. Ubarchuk, Eugeny V. Syrovatkin
Format: Article
Language:Russian
Published: Transactions of the Pacific Research Institute of Fisheries and Oceanography 2017-09-01
Series:Известия ТИНРО
Subjects:
шум судна
оценка запаса
научный эхолот
реакция избегания
плотность скопления
заглубление
рассеяние
дистанция реагирования
модель поведения
учетный трал
коэффициент уловистости
протраленный объем
vessel noise
fish stock estimation
scientific echo sounder
avoiding reaction
density aggregation
fish deepening
fish dispersion
reaction to noise distance
behaviour model
accounting trawl
catchability coefficient
towed volume of water
Online Access:https://izvestiya.tinro-center.ru/jour/article/view/319

Internet

https://izvestiya.tinro-center.ru/jour/article/view/319

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