State of forage base for pacific salmons in the Bering Sea in 2003-2012 (by results of surveys of the international expeditions BASIS-1 and 2)
The BASIS expeditions in the Bering Sea were conducted by North Pacific Anadromous Fish Comission (NPAFC) in the 2003-2006 and 2007-2012, in relatively warm and relatively cold conditions, respectively. The ice cover of the Sea changed synchronously in its western and eastern parts and indicated the...
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2014-12-01
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| Series: | Известия ТИНРО |
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| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/237 |
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| author | Anatoly F. Volkov |
| author_facet | Anatoly F. Volkov |
| author_sort | Anatoly F. Volkov |
| collection | DOAJ |
| description | The BASIS expeditions in the Bering Sea were conducted by North Pacific Anadromous Fish Comission (NPAFC) in the 2003-2006 and 2007-2012, in relatively warm and relatively cold conditions, respectively. The ice cover of the Sea changed synchronously in its western and eastern parts and indicated the warm regime since 2001 to 2006 and the cold regime since 2006 till nowadays. The regime shift changed radically the structure of zooplankton community in the eastern Bering Sea: the dominance of small-sized and medium-sized zooplankton was replaced by the dominance of large-sized zooplankton, with abundant large species of euphausiids, hyperiids, copepods, and arrowworms. This restructuring was reflected in the diet of pacific salmon: the bulk of the pink, chum and sockeye salmons diet was presented by fingerlings of pollock, sand lance, and capelin, larvae of flounders and crabs, and fry of small demersal fish in 2003-2006, but by zooplankton as euphausiids, hyperiids, and pteropods since 2007. However, there weren’t so essential changes in the western Bering Sea, both in zooplankton structure and salmons diet; the year-to-year dynamics was significant here, too, but long-term tendencies were not observed. |
| format | Article |
| id | doaj-art-6b29daa24bac4d8bb572296de04e6207 |
| institution | DOAJ |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| publishDate | 2014-12-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj-art-6b29daa24bac4d8bb572296de04e62072025-08-20T03:19:02ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102014-12-01179425027110.26428/1606-9919-2014-179-250-271237State of forage base for pacific salmons in the Bering Sea in 2003-2012 (by results of surveys of the international expeditions BASIS-1 and 2)Anatoly F. Volkov0Тихоокеанский научно-исследовательский рыбохозяйственный центрThe BASIS expeditions in the Bering Sea were conducted by North Pacific Anadromous Fish Comission (NPAFC) in the 2003-2006 and 2007-2012, in relatively warm and relatively cold conditions, respectively. The ice cover of the Sea changed synchronously in its western and eastern parts and indicated the warm regime since 2001 to 2006 and the cold regime since 2006 till nowadays. The regime shift changed radically the structure of zooplankton community in the eastern Bering Sea: the dominance of small-sized and medium-sized zooplankton was replaced by the dominance of large-sized zooplankton, with abundant large species of euphausiids, hyperiids, copepods, and arrowworms. This restructuring was reflected in the diet of pacific salmon: the bulk of the pink, chum and sockeye salmons diet was presented by fingerlings of pollock, sand lance, and capelin, larvae of flounders and crabs, and fry of small demersal fish in 2003-2006, but by zooplankton as euphausiids, hyperiids, and pteropods since 2007. However, there weren’t so essential changes in the western Bering Sea, both in zooplankton structure and salmons diet; the year-to-year dynamics was significant here, too, but long-term tendencies were not observed.https://izvestiya.tinro-center.ru/jour/article/view/237bering seazooplankton abundancezooplankton biomasszooplanktonsmall-sized fractionmedium-sized fractionlarge-sized fractionsalmonpink salmonchum salmonsockeye salmoncoho salmonchinook salmonfeeding |
| spellingShingle | Anatoly F. Volkov State of forage base for pacific salmons in the Bering Sea in 2003-2012 (by results of surveys of the international expeditions BASIS-1 and 2) Известия ТИНРО bering sea zooplankton abundance zooplankton biomass zooplankton small-sized fraction medium-sized fraction large-sized fraction salmon pink salmon chum salmon sockeye salmon coho salmon chinook salmon feeding |
| title | State of forage base for pacific salmons in the Bering Sea in 2003-2012 (by results of surveys of the international expeditions BASIS-1 and 2) |
| title_full | State of forage base for pacific salmons in the Bering Sea in 2003-2012 (by results of surveys of the international expeditions BASIS-1 and 2) |
| title_fullStr | State of forage base for pacific salmons in the Bering Sea in 2003-2012 (by results of surveys of the international expeditions BASIS-1 and 2) |
| title_full_unstemmed | State of forage base for pacific salmons in the Bering Sea in 2003-2012 (by results of surveys of the international expeditions BASIS-1 and 2) |
| title_short | State of forage base for pacific salmons in the Bering Sea in 2003-2012 (by results of surveys of the international expeditions BASIS-1 and 2) |
| title_sort | state of forage base for pacific salmons in the bering sea in 2003 2012 by results of surveys of the international expeditions basis 1 and 2 |
| topic | bering sea zooplankton abundance zooplankton biomass zooplankton small-sized fraction medium-sized fraction large-sized fraction salmon pink salmon chum salmon sockeye salmon coho salmon chinook salmon feeding |
| url | https://izvestiya.tinro-center.ru/jour/article/view/237 |
| work_keys_str_mv | AT anatolyfvolkov stateofforagebaseforpacificsalmonsintheberingseain20032012byresultsofsurveysoftheinternationalexpeditionsbasis1and2 |