Bio-physiological characteristics for juvenile coho salmon Oncorhynchus kisutch of artifcial and natural origin
Results of biological and physiological surveys of juvenile coho salmon from hatcheries of Magadan Region (artifcial origin) and from the main rivers of the northern Okhotsk Sea coast (natural origin) are presented. Biological and morpho-physiological indices of coho fry are compared between differe...
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2018
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Online Access: | https://doi.org/10.26428/1606-9919-2018-195-61-73 https://doaj.org/article/54cecc00231c4838a3b8e612c2753345 |
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ftdoajarticles:oai:doaj.org/article:54cecc00231c4838a3b8e612c2753345 2023-10-09T21:55:00+02:00 Bio-physiological characteristics for juvenile coho salmon Oncorhynchus kisutch of artifcial and natural origin L. L. Khovanskaya E. A. Ryabukha 2018-12-01T00:00:00Z https://doi.org/10.26428/1606-9919-2018-195-61-73 https://doaj.org/article/54cecc00231c4838a3b8e612c2753345 RU rus Transactions of the Pacific Research Institute of Fisheries and Oceanography https://izvestiya.tinro-center.ru/jour/article/view/421 https://doaj.org/toc/1606-9919 https://doaj.org/toc/2658-5510 1606-9919 2658-5510 doi:10.26428/1606-9919-2018-195-61-73 https://doaj.org/article/54cecc00231c4838a3b8e612c2753345 Известия ТИНРО, Vol 195, Iss 4, Pp 61-73 (2018) молодь кижуча искусственного и природного происхождения сеголетки биолого-морфофизиологические гематологические показатели Aquaculture. Fisheries. Angling SH1-691 article 2018 ftdoajarticles https://doi.org/10.26428/1606-9919-2018-195-61-73 2023-09-10T00:41:26Z Results of biological and physiological surveys of juvenile coho salmon from hatcheries of Magadan Region (artifcial origin) and from the main rivers of the northern Okhotsk Sea coast (natural origin) are presented. Biological and morpho-physiological indices of coho fry are compared between different salmon hatcheries and different rivers. Hematological indices for the fsh of natural origin are considered in dynamics. Positive effect of the higher water temperature and longer growing in artifcial conditions on length, body weight, fatness, feeding intensity and morpho-physiological indices of internal organs (liver, intestines) is detected for the coho fry; effect of the water temperature on length and weight of coho salmon in natural conditions is also positive. There is concluded that the coho salmon growing from the larvae under relatively high and stable temperature (4–5 oC) can provide the weight of fry over 0.6 g no later than middle July. If coho salmon is cultivated in conditions of low temperature (0.8–1.0 оС), the short-term growing before release (2.0–2.5 months) under a higher temperature (> 5o) is recommended to improve its fry quality, possibly in the nursery ponds equipped in natural reservoirs — in this case, the juveniles with the weight over 1.0 g could be produced in late August. Hematological indices are measured for different age groups of coho salmon from several rivers. Their dependence on the water temperature was not determined because of high variety of physiological state. However, a signifcant deviation to decrease from the normal values was detected for the red cell count and hemoglobin content in blood of the coho juveniles caught from the Taui River in 2018, obviously reasoned by their younger age and lower size and weight. The juveniles caught from the Yana River in 2016 had no signifcant deviations from the normal values, except of the hematocrit value that indicated stable conditions of their habitat and normal age structure. The hematological indices (hemoglobin content and ... Article in Journal/Newspaper okhotsk sea Directory of Open Access Journals: DOAJ Articles Magadan ENVELOPE(150.803,150.803,59.564,59.564) Okhotsk Yana River ENVELOPE(134.625,134.625,67.662,67.662) Izvestiya TINRO 195 61 73 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
молодь кижуча искусственного и природного происхождения сеголетки биолого-морфофизиологические гематологические показатели Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
молодь кижуча искусственного и природного происхождения сеголетки биолого-морфофизиологические гематологические показатели Aquaculture. Fisheries. Angling SH1-691 L. L. Khovanskaya E. A. Ryabukha Bio-physiological characteristics for juvenile coho salmon Oncorhynchus kisutch of artifcial and natural origin |
topic_facet |
молодь кижуча искусственного и природного происхождения сеголетки биолого-морфофизиологические гематологические показатели Aquaculture. Fisheries. Angling SH1-691 |
description |
Results of biological and physiological surveys of juvenile coho salmon from hatcheries of Magadan Region (artifcial origin) and from the main rivers of the northern Okhotsk Sea coast (natural origin) are presented. Biological and morpho-physiological indices of coho fry are compared between different salmon hatcheries and different rivers. Hematological indices for the fsh of natural origin are considered in dynamics. Positive effect of the higher water temperature and longer growing in artifcial conditions on length, body weight, fatness, feeding intensity and morpho-physiological indices of internal organs (liver, intestines) is detected for the coho fry; effect of the water temperature on length and weight of coho salmon in natural conditions is also positive. There is concluded that the coho salmon growing from the larvae under relatively high and stable temperature (4–5 oC) can provide the weight of fry over 0.6 g no later than middle July. If coho salmon is cultivated in conditions of low temperature (0.8–1.0 оС), the short-term growing before release (2.0–2.5 months) under a higher temperature (> 5o) is recommended to improve its fry quality, possibly in the nursery ponds equipped in natural reservoirs — in this case, the juveniles with the weight over 1.0 g could be produced in late August. Hematological indices are measured for different age groups of coho salmon from several rivers. Their dependence on the water temperature was not determined because of high variety of physiological state. However, a signifcant deviation to decrease from the normal values was detected for the red cell count and hemoglobin content in blood of the coho juveniles caught from the Taui River in 2018, obviously reasoned by their younger age and lower size and weight. The juveniles caught from the Yana River in 2016 had no signifcant deviations from the normal values, except of the hematocrit value that indicated stable conditions of their habitat and normal age structure. The hematological indices (hemoglobin content and ... |
format |
Article in Journal/Newspaper |
author |
L. L. Khovanskaya E. A. Ryabukha |
author_facet |
L. L. Khovanskaya E. A. Ryabukha |
author_sort |
L. L. Khovanskaya |
title |
Bio-physiological characteristics for juvenile coho salmon Oncorhynchus kisutch of artifcial and natural origin |
title_short |
Bio-physiological characteristics for juvenile coho salmon Oncorhynchus kisutch of artifcial and natural origin |
title_full |
Bio-physiological characteristics for juvenile coho salmon Oncorhynchus kisutch of artifcial and natural origin |
title_fullStr |
Bio-physiological characteristics for juvenile coho salmon Oncorhynchus kisutch of artifcial and natural origin |
title_full_unstemmed |
Bio-physiological characteristics for juvenile coho salmon Oncorhynchus kisutch of artifcial and natural origin |
title_sort |
bio-physiological characteristics for juvenile coho salmon oncorhynchus kisutch of artifcial and natural origin |
publisher |
Transactions of the Pacific Research Institute of Fisheries and Oceanography |
publishDate |
2018 |
url |
https://doi.org/10.26428/1606-9919-2018-195-61-73 https://doaj.org/article/54cecc00231c4838a3b8e612c2753345 |
long_lat |
ENVELOPE(150.803,150.803,59.564,59.564) ENVELOPE(134.625,134.625,67.662,67.662) |
geographic |
Magadan Okhotsk Yana River |
geographic_facet |
Magadan Okhotsk Yana River |
genre |
okhotsk sea |
genre_facet |
okhotsk sea |
op_source |
Известия ТИНРО, Vol 195, Iss 4, Pp 61-73 (2018) |
op_relation |
https://izvestiya.tinro-center.ru/jour/article/view/421 https://doaj.org/toc/1606-9919 https://doaj.org/toc/2658-5510 1606-9919 2658-5510 doi:10.26428/1606-9919-2018-195-61-73 https://doaj.org/article/54cecc00231c4838a3b8e612c2753345 |
op_doi |
https://doi.org/10.26428/1606-9919-2018-195-61-73 |
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Izvestiya TINRO |
container_volume |
195 |
container_start_page |
61 |
op_container_end_page |
73 |
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1779318763066228736 |