Why does the pollock (<i>Theragra chalcogramma</i>) abundance change
Some common ideas about environmental factors that determine the patterns of migration (including timing) and stock dynamics of walleye pollock are critically analyzed with particular attention to the Bering Sea. There is shown that the conception of the migration timing dependence on food supply in...
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| Format: | Article |
| Language: | Russian |
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2016-06-01
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| Series: | Известия ТИНРО |
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| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/98 |
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| _version_ | 1849395039559483392 |
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| author | Vyacheslav P. Shuntov |
| author_facet | Vyacheslav P. Shuntov |
| author_sort | Vyacheslav P. Shuntov |
| collection | DOAJ |
| description | Some common ideas about environmental factors that determine the patterns of migration (including timing) and stock dynamics of walleye pollock are critically analyzed with particular attention to the Bering Sea. There is shown that the conception of the migration timing dependence on food supply in the northern Bering Sea does not represent the real facts, as well as the conception of year-class strength dependence on winter mortality of fingerlings determined by food supply, especially in conditions of its deficiency. Periodicity of the pollock stocks dynamics associated with global changes of climatic and oceanographic factors is also called in question. Role of provincial factors in dynamics of the pollock populations is discussed and emphasized. |
| format | Article |
| id | doaj-art-5263b19722ca4483ab5aafb899f8d42f |
| institution | Kabale University |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| publishDate | 2016-06-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj-art-5263b19722ca4483ab5aafb899f8d42f2025-08-20T03:39:48ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102016-06-011852314810.26428/1606-9919-2016-185-31-4898Why does the pollock (<i>Theragra chalcogramma</i>) abundance changeVyacheslav P. Shuntov0Тихоокеанский научно-исследовательский рыбохозяйственный центрSome common ideas about environmental factors that determine the patterns of migration (including timing) and stock dynamics of walleye pollock are critically analyzed with particular attention to the Bering Sea. There is shown that the conception of the migration timing dependence on food supply in the northern Bering Sea does not represent the real facts, as well as the conception of year-class strength dependence on winter mortality of fingerlings determined by food supply, especially in conditions of its deficiency. Periodicity of the pollock stocks dynamics associated with global changes of climatic and oceanographic factors is also called in question. Role of provincial factors in dynamics of the pollock populations is discussed and emphasized.https://izvestiya.tinro-center.ru/jour/article/view/98pollockmigrationfood deficiencyyear-class strengthstate of stock |
| spellingShingle | Vyacheslav P. Shuntov Why does the pollock (<i>Theragra chalcogramma</i>) abundance change Известия ТИНРО pollock migration food deficiency year-class strength state of stock |
| title | Why does the pollock (<i>Theragra chalcogramma</i>) abundance change |
| title_full | Why does the pollock (<i>Theragra chalcogramma</i>) abundance change |
| title_fullStr | Why does the pollock (<i>Theragra chalcogramma</i>) abundance change |
| title_full_unstemmed | Why does the pollock (<i>Theragra chalcogramma</i>) abundance change |
| title_short | Why does the pollock (<i>Theragra chalcogramma</i>) abundance change |
| title_sort | why does the pollock i theragra chalcogramma i abundance change |
| topic | pollock migration food deficiency year-class strength state of stock |
| url | https://izvestiya.tinro-center.ru/jour/article/view/98 |
| work_keys_str_mv | AT vyacheslavpshuntov whydoesthepollockitheragrachalcogrammaiabundancechange |