Underwater observations on fish behavior to determine the coefficient of catchability for Danish seine
Underwater observations were conducted to assess the impact of the research Danish seine elements on behavior of walleye pollock Theragra chalcogramma in its active zone. The underwater video equipment was installed on specially designed and constructed experimental platform and on elements of the D...
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2016
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Online Access: | https://doi.org/10.26428/1606-9919-2016-187-233-244 https://doaj.org/article/2cf5cf31b4d2419facf386c135470b30 |
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ftdoajarticles:oai:doaj.org/article:2cf5cf31b4d2419facf386c135470b30 2023-10-09T21:56:16+02:00 Underwater observations on fish behavior to determine the coefficient of catchability for Danish seine Ivan V. Roy 2016-12-01T00:00:00Z https://doi.org/10.26428/1606-9919-2016-187-233-244 https://doaj.org/article/2cf5cf31b4d2419facf386c135470b30 RU rus Transactions of the Pacific Research Institute of Fisheries and Oceanography https://izvestiya.tinro-center.ru/jour/article/view/158 https://doaj.org/toc/1606-9919 https://doaj.org/toc/2658-5510 1606-9919 2658-5510 doi:10.26428/1606-9919-2016-187-233-244 https://doaj.org/article/2cf5cf31b4d2419facf386c135470b30 Известия ТИНРО, Vol 187, Iss 4, Pp 233-244 (2016) снюрреводный лов коэффициент уловистости урез снюрревода минтай эксперимент подводные наблюдения реакция рыб поведение рыб Aquaculture. Fisheries. Angling SH1-691 article 2016 ftdoajarticles https://doi.org/10.26428/1606-9919-2016-187-233-244 2023-09-10T00:41:26Z Underwater observations were conducted to assess the impact of the research Danish seine elements on behavior of walleye pollock Theragra chalcogramma in its active zone. The underwater video equipment was installed on specially designed and constructed experimental platform and on elements of the Danish seine. In the experiment with pollock, the experimental platform demonstrated its low efficiency, however, it could be used for observations on sedentary benthic organisms on homogeneous soils without sharp changes in the terrain. With the equipment installed directly on the Danish seine, high efficiency of the seine ropes was observed: up to 92 % of fish from encircled volume remained in the towed area. Taking into account this estimation and features of fish biomass distribution, the coefficient of catchability for Danish seine is determined as 0.40 ± 0.15. Article in Journal/Newspaper Theragra chalcogramma Directory of Open Access Journals: DOAJ Articles Izvestiya TINRO 187 4 233 244 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
Russian |
topic |
снюрреводный лов коэффициент уловистости урез снюрревода минтай эксперимент подводные наблюдения реакция рыб поведение рыб Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
снюрреводный лов коэффициент уловистости урез снюрревода минтай эксперимент подводные наблюдения реакция рыб поведение рыб Aquaculture. Fisheries. Angling SH1-691 Ivan V. Roy Underwater observations on fish behavior to determine the coefficient of catchability for Danish seine |
topic_facet |
снюрреводный лов коэффициент уловистости урез снюрревода минтай эксперимент подводные наблюдения реакция рыб поведение рыб Aquaculture. Fisheries. Angling SH1-691 |
description |
Underwater observations were conducted to assess the impact of the research Danish seine elements on behavior of walleye pollock Theragra chalcogramma in its active zone. The underwater video equipment was installed on specially designed and constructed experimental platform and on elements of the Danish seine. In the experiment with pollock, the experimental platform demonstrated its low efficiency, however, it could be used for observations on sedentary benthic organisms on homogeneous soils without sharp changes in the terrain. With the equipment installed directly on the Danish seine, high efficiency of the seine ropes was observed: up to 92 % of fish from encircled volume remained in the towed area. Taking into account this estimation and features of fish biomass distribution, the coefficient of catchability for Danish seine is determined as 0.40 ± 0.15. |
format |
Article in Journal/Newspaper |
author |
Ivan V. Roy |
author_facet |
Ivan V. Roy |
author_sort |
Ivan V. Roy |
title |
Underwater observations on fish behavior to determine the coefficient of catchability for Danish seine |
title_short |
Underwater observations on fish behavior to determine the coefficient of catchability for Danish seine |
title_full |
Underwater observations on fish behavior to determine the coefficient of catchability for Danish seine |
title_fullStr |
Underwater observations on fish behavior to determine the coefficient of catchability for Danish seine |
title_full_unstemmed |
Underwater observations on fish behavior to determine the coefficient of catchability for Danish seine |
title_sort |
underwater observations on fish behavior to determine the coefficient of catchability for danish seine |
publisher |
Transactions of the Pacific Research Institute of Fisheries and Oceanography |
publishDate |
2016 |
url |
https://doi.org/10.26428/1606-9919-2016-187-233-244 https://doaj.org/article/2cf5cf31b4d2419facf386c135470b30 |
genre |
Theragra chalcogramma |
genre_facet |
Theragra chalcogramma |
op_source |
Известия ТИНРО, Vol 187, Iss 4, Pp 233-244 (2016) |
op_relation |
https://izvestiya.tinro-center.ru/jour/article/view/158 https://doaj.org/toc/1606-9919 https://doaj.org/toc/2658-5510 1606-9919 2658-5510 doi:10.26428/1606-9919-2016-187-233-244 https://doaj.org/article/2cf5cf31b4d2419facf386c135470b30 |
op_doi |
https://doi.org/10.26428/1606-9919-2016-187-233-244 |
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Izvestiya TINRO |
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187 |
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