Patterns of reproduction for coho salmon Oncorhynchus kisutch in the Khabarovsk Region
Reasons for deviations in actual number of sexually mature offspring from the parent-offspring ratio described by Ricker equation are investigated for coho salmon in the Okhotsk district. The deviations are well explained by variability of air temperature and precipitation during the feeding period...
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| Format: | Article |
| Language: | Russian |
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2024-10-01
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| Series: | Известия ТИНРО |
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| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/975 |
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| author | V. I. Ostrovsky |
| author_facet | V. I. Ostrovsky |
| author_sort | V. I. Ostrovsky |
| collection | DOAJ |
| description | Reasons for deviations in actual number of sexually mature offspring from the parent-offspring ratio described by Ricker equation are investigated for coho salmon in the Okhotsk district. The deviations are well explained by variability of air temperature and precipitation during the feeding period of juveniles in rivers. Combined influence of the number of parents and weather conditions in the freshwater period of life explains more than 90 % of variability for coho salmon year-class strength. The influence of weather factors is realized possibly through conditions of nutrition and growth of juveniles. The results are discussed in comparison with similar studies of some populations of pink and chum salmon. |
| format | Article |
| id | doaj-art-d1ca23da261f47e88d4becb10af1e62c |
| institution | Matheson Library |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| publishDate | 2024-10-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj-art-d1ca23da261f47e88d4becb10af1e62c2025-08-03T19:27:14ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102024-10-01204356857910.26428/1606-9919-2024-204-568-579844Patterns of reproduction for coho salmon Oncorhynchus kisutch in the Khabarovsk RegionV. I. Ostrovsky0Khabarovsk branch of VNIRO (KhabarovskNIRO)Reasons for deviations in actual number of sexually mature offspring from the parent-offspring ratio described by Ricker equation are investigated for coho salmon in the Okhotsk district. The deviations are well explained by variability of air temperature and precipitation during the feeding period of juveniles in rivers. Combined influence of the number of parents and weather conditions in the freshwater period of life explains more than 90 % of variability for coho salmon year-class strength. The influence of weather factors is realized possibly through conditions of nutrition and growth of juveniles. The results are discussed in comparison with similar studies of some populations of pink and chum salmon.https://izvestiya.tinro-center.ru/jour/article/view/975pacific salmononcorhynchus kisutchokhotsk seayear-classweather factor |
| spellingShingle | V. I. Ostrovsky Patterns of reproduction for coho salmon Oncorhynchus kisutch in the Khabarovsk Region Известия ТИНРО pacific salmon oncorhynchus kisutch okhotsk sea year-class weather factor |
| title | Patterns of reproduction for coho salmon Oncorhynchus kisutch in the Khabarovsk Region |
| title_full | Patterns of reproduction for coho salmon Oncorhynchus kisutch in the Khabarovsk Region |
| title_fullStr | Patterns of reproduction for coho salmon Oncorhynchus kisutch in the Khabarovsk Region |
| title_full_unstemmed | Patterns of reproduction for coho salmon Oncorhynchus kisutch in the Khabarovsk Region |
| title_short | Patterns of reproduction for coho salmon Oncorhynchus kisutch in the Khabarovsk Region |
| title_sort | patterns of reproduction for coho salmon oncorhynchus kisutch in the khabarovsk region |
| topic | pacific salmon oncorhynchus kisutch okhotsk sea year-class weather factor |
| url | https://izvestiya.tinro-center.ru/jour/article/view/975 |
| work_keys_str_mv | AT viostrovsky patternsofreproductionforcohosalmononcorhynchuskisutchinthekhabarovskregion |