Hematological analysis of hatchery-reared and wild juveniles of pink salmon <i>Oncorhynchus gorbuscha</i> and chum salmon <i>Oncorhynchus keta</i> in Sakhalin Region
State of blood cells is examined for juveniles of pink and chum salmon sampled from Lesnoy Pugachevsky, Taranaisky and Okhotsky hatcheries in Sakhalin in May-June of 2018 and 2019 and caught in the Ochepukha, Pugachevka and Taranay Rivers during their catadromous migration to the sea. Both hatchery...
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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/664 |
| _version_ | 1826572113156243456 |
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| author | O. V. Zelennikov T. A. Schneider M. Yu. Stekolshchikova |
| author_facet | O. V. Zelennikov T. A. Schneider M. Yu. Stekolshchikova |
| author_sort | O. V. Zelennikov |
| collection | DOAJ |
| description | State of blood cells is examined for juveniles of pink and chum salmon sampled from Lesnoy Pugachevsky, Taranaisky and Okhotsky hatcheries in Sakhalin in May-June of 2018 and 2019 and caught in the Ochepukha, Pugachevka and Taranay Rivers during their catadromous migration to the sea. Both hatchery and wild juveniles of both species were characterized by high adaptive capabilities evidenced with high content of young forms of erythrocytes in the blood (17.0–31.0 %), significant portion of lymphocytes (60.8–92.0 %), and small number of neutrophils. The high adaptive capabilities were confirmed in the experiment, when juveniles of pink salmon were placed in the seawater without preliminary acclimation, but noticeable changes in the state of blood cells were not revealed both for wild and hatchery-reared specimens. Proportion of different blood cells was highly variable for juveniles of both artificial and natural origin but was more similar between the fry hatched at the same hatcheries or in the same rivers. A case of increased number of neutrophils was noted in 2019 for certain groups of juveniles, with total increasing of platelets in the blood that was explained by an external influence on the juveniles. |
| first_indexed | 2024-03-12T03:28:30Z |
| format | Article |
| id | doaj.art-0175989bd5944bdca16a800d94391410 |
| institution | Directory Open Access Journal |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| last_indexed | 2025-03-14T12:21:51Z |
| publishDate | 2021-10-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj.art-0175989bd5944bdca16a800d943914102025-03-02T09:31:42ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102021-10-01201370271110.26428/1606-9919-2021-201-702-711605Hematological analysis of hatchery-reared and wild juveniles of pink salmon <i>Oncorhynchus gorbuscha</i> and chum salmon <i>Oncorhynchus keta</i> in Sakhalin RegionO. V. Zelennikov0T. A. Schneider1M. Yu. Stekolshchikova2St. Petersburg State UniversitySt. Petersburg State UniversitySakhalin branch of VNIRO (SakhNIRO)State of blood cells is examined for juveniles of pink and chum salmon sampled from Lesnoy Pugachevsky, Taranaisky and Okhotsky hatcheries in Sakhalin in May-June of 2018 and 2019 and caught in the Ochepukha, Pugachevka and Taranay Rivers during their catadromous migration to the sea. Both hatchery and wild juveniles of both species were characterized by high adaptive capabilities evidenced with high content of young forms of erythrocytes in the blood (17.0–31.0 %), significant portion of lymphocytes (60.8–92.0 %), and small number of neutrophils. The high adaptive capabilities were confirmed in the experiment, when juveniles of pink salmon were placed in the seawater without preliminary acclimation, but noticeable changes in the state of blood cells were not revealed both for wild and hatchery-reared specimens. Proportion of different blood cells was highly variable for juveniles of both artificial and natural origin but was more similar between the fry hatched at the same hatcheries or in the same rivers. A case of increased number of neutrophils was noted in 2019 for certain groups of juveniles, with total increasing of platelets in the blood that was explained by an external influence on the juveniles.https://izvestiya.tinro-center.ru/jour/article/view/664pink salmonchum salmonsakhalin regionfish farmblood cell |
| spellingShingle | O. V. Zelennikov T. A. Schneider M. Yu. Stekolshchikova Hematological analysis of hatchery-reared and wild juveniles of pink salmon <i>Oncorhynchus gorbuscha</i> and chum salmon <i>Oncorhynchus keta</i> in Sakhalin Region Известия ТИНРО pink salmon chum salmon sakhalin region fish farm blood cell |
| title | Hematological analysis of hatchery-reared and wild juveniles of pink salmon <i>Oncorhynchus gorbuscha</i> and chum salmon <i>Oncorhynchus keta</i> in Sakhalin Region |
| title_full | Hematological analysis of hatchery-reared and wild juveniles of pink salmon <i>Oncorhynchus gorbuscha</i> and chum salmon <i>Oncorhynchus keta</i> in Sakhalin Region |
| title_fullStr | Hematological analysis of hatchery-reared and wild juveniles of pink salmon <i>Oncorhynchus gorbuscha</i> and chum salmon <i>Oncorhynchus keta</i> in Sakhalin Region |
| title_full_unstemmed | Hematological analysis of hatchery-reared and wild juveniles of pink salmon <i>Oncorhynchus gorbuscha</i> and chum salmon <i>Oncorhynchus keta</i> in Sakhalin Region |
| title_short | Hematological analysis of hatchery-reared and wild juveniles of pink salmon <i>Oncorhynchus gorbuscha</i> and chum salmon <i>Oncorhynchus keta</i> in Sakhalin Region |
| title_sort | hematological analysis of hatchery reared and wild juveniles of pink salmon i oncorhynchus gorbuscha i and chum salmon i oncorhynchus keta i in sakhalin region |
| topic | pink salmon chum salmon sakhalin region fish farm blood cell |
| url | https://izvestiya.tinro-center.ru/jour/article/view/664 |
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