The impact of fishery with the pelagic and bottom trawls on herring stocks
The analysis of herring Clupea harengus membras samples taken from the diurnal commercial and experimental bottom and pelagic trawl catches at various depths in the open part of the Northeastern Baltic, in the Gulfs of Riga and of Finland in the first half of the 1960s allowed to draw the following conclusions: (1) In all studied areas the share of young herring was higher in the pelagic than in bottom trawl catches; (2) The percentage of young herring was higher in the coastal than in the open sea grounds; (3) In the open sea the trawl fishery was more reasonable than in the gulfs; (4) Owing to the changeover from the bottom trawling to the usage of very large pelagic trawls in 1962-1963, the rationality of exploitation of herring stocks considerably decreased.
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Format: | Book/Monograph/Conference Proceedings biblioteca |
Language: | Russian |
Published: |
Baltijskij Nauchno-issledovatelskij Institut Rybnogo Khozyajstva; "Zvaigzne"
1967
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Subjects: | Clupea harengus membras, ASFA_2015::F::Fish stocks, ASFA_2015::B::Bottom trawling, ASFA_2015::C::Commercial fishing, ASFA_2015::E::Experimental fishing, |
Online Access: | http://hdl.handle.net/1834/43210 |
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dig-aquadocs-1834-432102024-07-24T02:44:10Z The impact of fishery with the pelagic and bottom trawls on herring stocks Влияние промысла донным и пелагическим тралами на запасы салаки Ojaveer, E.A. Clupea harengus membras ASFA_2015::F::Fish stocks ASFA_2015::B::Bottom trawling ASFA_2015::C::Commercial fishing ASFA_2015::E::Experimental fishing The analysis of herring Clupea harengus membras samples taken from the diurnal commercial and experimental bottom and pelagic trawl catches at various depths in the open part of the Northeastern Baltic, in the Gulfs of Riga and of Finland in the first half of the 1960s allowed to draw the following conclusions: (1) In all studied areas the share of young herring was higher in the pelagic than in bottom trawl catches; (2) The percentage of young herring was higher in the coastal than in the open sea grounds; (3) In the open sea the trawl fishery was more reasonable than in the gulfs; (4) Owing to the changeover from the bottom trawling to the usage of very large pelagic trawls in 1962-1963, the rationality of exploitation of herring stocks considerably decreased. Published Not Known 2024-07-23T14:06:53Z 2024-07-23T14:06:53Z 1967 Book/Monograph/Conference Proceedings http://hdl.handle.net/1834/43210 ru Rybokhozyajstvennye issledovaniya v bassejne Baltijskogo morya;3 pp.129-145 Baltic Sea Baltijskij Nauchno-issledovatelskij Institut Rybnogo Khozyajstva; "Zvaigzne" Riga |
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biblioteca |
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Europa del Oeste |
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Russian |
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Clupea harengus membras ASFA_2015::F::Fish stocks ASFA_2015::B::Bottom trawling ASFA_2015::C::Commercial fishing ASFA_2015::E::Experimental fishing Clupea harengus membras ASFA_2015::F::Fish stocks ASFA_2015::B::Bottom trawling ASFA_2015::C::Commercial fishing ASFA_2015::E::Experimental fishing |
spellingShingle |
Clupea harengus membras ASFA_2015::F::Fish stocks ASFA_2015::B::Bottom trawling ASFA_2015::C::Commercial fishing ASFA_2015::E::Experimental fishing Clupea harengus membras ASFA_2015::F::Fish stocks ASFA_2015::B::Bottom trawling ASFA_2015::C::Commercial fishing ASFA_2015::E::Experimental fishing Ojaveer, E.A. The impact of fishery with the pelagic and bottom trawls on herring stocks |
description |
The analysis of herring Clupea harengus membras samples taken from the diurnal commercial and experimental bottom and pelagic trawl catches at various depths in the open part of the Northeastern Baltic, in the Gulfs of Riga and of Finland in the first half of the 1960s allowed to draw the following conclusions: (1) In all studied areas the share of young herring was higher in the pelagic than in bottom trawl catches; (2) The percentage of young herring was higher in the coastal than in the open sea grounds; (3) In the open sea the trawl fishery was more reasonable than in the gulfs; (4) Owing to the changeover from the bottom trawling to the usage of very large pelagic trawls in 1962-1963, the rationality of exploitation of herring stocks considerably decreased. |
format |
Book/Monograph/Conference Proceedings |
topic_facet |
Clupea harengus membras ASFA_2015::F::Fish stocks ASFA_2015::B::Bottom trawling ASFA_2015::C::Commercial fishing ASFA_2015::E::Experimental fishing |
author |
Ojaveer, E.A. |
author_facet |
Ojaveer, E.A. |
author_sort |
Ojaveer, E.A. |
title |
The impact of fishery with the pelagic and bottom trawls on herring stocks |
title_short |
The impact of fishery with the pelagic and bottom trawls on herring stocks |
title_full |
The impact of fishery with the pelagic and bottom trawls on herring stocks |
title_fullStr |
The impact of fishery with the pelagic and bottom trawls on herring stocks |
title_full_unstemmed |
The impact of fishery with the pelagic and bottom trawls on herring stocks |
title_sort |
impact of fishery with the pelagic and bottom trawls on herring stocks |
publisher |
Baltijskij Nauchno-issledovatelskij Institut Rybnogo Khozyajstva; "Zvaigzne" |
publishDate |
1967 |
url |
http://hdl.handle.net/1834/43210 |
work_keys_str_mv |
AT ojaveerea theimpactoffisherywiththepelagicandbottomtrawlsonherringstocks AT ojaveerea vliâniepromysladonnymipelagičeskimtralaminazapasysalaki AT ojaveerea impactoffisherywiththepelagicandbottomtrawlsonherringstocks |
_version_ |
1806036773334155264 |