Сurrent state of artificial reproduction of chum salmon in Primorye Region
Results of 4 salmon hatcheries operation in Primorye Region are overviewed. Dynamics of chum salmon producers return to the rivers is presented for 4 last years. Recent tendency of shifting the peak of return from middle October to late September — early October is noted both for the rivers flowing...
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| Format: | Article |
| Language: | Russian |
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2021-10-01
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| Series: | Известия ТИНРО |
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| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/663 |
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| author | G. N. Kurgansky |
| author_facet | G. N. Kurgansky |
| author_sort | G. N. Kurgansky |
| collection | DOAJ |
| description | Results of 4 salmon hatcheries operation in Primorye Region are overviewed. Dynamics of chum salmon producers return to the rivers is presented for 4 last years. Recent tendency of shifting the peak of return from middle October to late September — early October is noted both for the rivers flowing into Peter the Great Bay (Barabashevka) and for the rivers of central Primorye (Verbnaya and Milogradovka). High percentage of producers aged 2+ was observed in the hatchery rivers in some years (32.9 % in the Barabashevka in 2019, 31.0 % in the Verbnaya in 2020, 37.8 % in the Bezymyanny in 2020). Interannual fluctuations in the number of producers return are possibly caused by malfunctions of hatcheries. A problem of water supply to the hatcheries is considered. Expediency of temperature control at hatcheries is shown. Data on release of chum salmon juveniles in the last decade are presented for each hatchery: the number of juveniles released, the average weight of juveniles, and the timing of release. Total release to the Barabashevka River was 119.29 . 106 juveniles, to the Ryazanovka — 114.24 . 106 juveniles, to the Poyma — 49.43 . 106 juveniles, to the Narva — 6.02 . 106 juveniles, to the Brusya — 3.11 . 106 juveniles, to the Verbnaya — 69.66 . 106 juveniles, to the Milogradovka — 1.00 . 106 juveniles, to the Lidovka — 1.71 . 106 juveniles, to the Bezymyanny — 69.45 . 106 juveniles, and 2.00 . 106 juveniles each to the Kievka and Margaritovka Rivers. |
| format | Article |
| id | doaj-art-e2320156faf54138afc19665b53a6560 |
| institution | Kabale University |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| publishDate | 2021-10-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj-art-e2320156faf54138afc19665b53a65602025-08-20T03:59:16ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102021-10-01201368670110.26428/1606-9919-2021-201-686-701604Сurrent state of artificial reproduction of chum salmon in Primorye RegionG. N. Kurgansky0Pacific branch of VNIRO (TINRO)Results of 4 salmon hatcheries operation in Primorye Region are overviewed. Dynamics of chum salmon producers return to the rivers is presented for 4 last years. Recent tendency of shifting the peak of return from middle October to late September — early October is noted both for the rivers flowing into Peter the Great Bay (Barabashevka) and for the rivers of central Primorye (Verbnaya and Milogradovka). High percentage of producers aged 2+ was observed in the hatchery rivers in some years (32.9 % in the Barabashevka in 2019, 31.0 % in the Verbnaya in 2020, 37.8 % in the Bezymyanny in 2020). Interannual fluctuations in the number of producers return are possibly caused by malfunctions of hatcheries. A problem of water supply to the hatcheries is considered. Expediency of temperature control at hatcheries is shown. Data on release of chum salmon juveniles in the last decade are presented for each hatchery: the number of juveniles released, the average weight of juveniles, and the timing of release. Total release to the Barabashevka River was 119.29 . 106 juveniles, to the Ryazanovka — 114.24 . 106 juveniles, to the Poyma — 49.43 . 106 juveniles, to the Narva — 6.02 . 106 juveniles, to the Brusya — 3.11 . 106 juveniles, to the Verbnaya — 69.66 . 106 juveniles, to the Milogradovka — 1.00 . 106 juveniles, to the Lidovka — 1.71 . 106 juveniles, to the Bezymyanny — 69.45 . 106 juveniles, and 2.00 . 106 juveniles each to the Kievka and Margaritovka Rivers.https://izvestiya.tinro-center.ru/jour/article/view/663salmon hatcherypacific salmonchum salmonfish eggjuvenilerelease of juveniles |
| spellingShingle | G. N. Kurgansky Сurrent state of artificial reproduction of chum salmon in Primorye Region Известия ТИНРО salmon hatchery pacific salmon chum salmon fish egg juvenile release of juveniles |
| title | Сurrent state of artificial reproduction of chum salmon in Primorye Region |
| title_full | Сurrent state of artificial reproduction of chum salmon in Primorye Region |
| title_fullStr | Сurrent state of artificial reproduction of chum salmon in Primorye Region |
| title_full_unstemmed | Сurrent state of artificial reproduction of chum salmon in Primorye Region |
| title_short | Сurrent state of artificial reproduction of chum salmon in Primorye Region |
| title_sort | сurrent state of artificial reproduction of chum salmon in primorye region |
| topic | salmon hatchery pacific salmon chum salmon fish egg juvenile release of juveniles |
| url | https://izvestiya.tinro-center.ru/jour/article/view/663 |
| work_keys_str_mv | AT gnkurgansky surrentstateofartificialreproductionofchumsalmoninprimoryeregion |