GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES
Early stages of gametogenesis in young chum salmon are investigated under various temperature regimes at three fish farms of Sakhalin region and in laboratory conditions. In all cases, sex differentiation started after the mass hatching, the age of differentiation varied from 65 to 213 days, but the...
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
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ftdoajarticles:oai:doaj.org/article:24abe27385fe44f19416e30478ac3cb2 2023-10-09T21:55:41+02:00 GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES O. V. Zelennikov 2019-09-01T00:00:00Z https://doi.org/10.26428/1606-9919-2019-198-209-220 https://doaj.org/article/24abe27385fe44f19416e30478ac3cb2 RU rus Transactions of the Pacific Research Institute of Fisheries and Oceanography https://izvestiya.tinro-center.ru/jour/article/view/501 https://doaj.org/toc/1606-9919 https://doaj.org/toc/2658-5510 1606-9919 2658-5510 doi:10.26428/1606-9919-2019-198-209-220 https://doaj.org/article/24abe27385fe44f19416e30478ac3cb2 Известия ТИНРО, Vol 198, Iss 3, Pp 209-220 (2019) кета сахалинская область семенники яичники ооциты дифференцировка пола Aquaculture. Fisheries. Angling SH1-691 article 2019 ftdoajarticles https://doi.org/10.26428/1606-9919-2019-198-209-220 2023-09-10T00:41:26Z Early stages of gametogenesis in young chum salmon are investigated under various temperature regimes at three fish farms of Sakhalin region and in laboratory conditions. In all cases, sex differentiation started after the mass hatching, the age of differentiation varied from 65 to 213 days, but the sum of accumulated degree-days was rather stable — from 620.6 to 669.1. The period from the beginning of sex differentiation to the beginning of previtellogenesis lasted 27–144 days depending on conditions, even for fish in the same fish farm. The lower was the water temperature after the beginning of sex differentiation, the smaller sum of degree-days was accumulated by fish before the beginning of previtellogenic growth of oocytes and the shorter was the period of oocyte growth before the fish release from the farm. The period of previtellogenesis in chum salmon always began before the end of larval period, when weight of the yolk sac was from 1.8 to 18.2 % of the total body weight. Article in Journal/Newspaper Sakhalin Directory of Open Access Journals: DOAJ Articles Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Pacific Izvestiya TINRO 198 209 220 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
кета сахалинская область семенники яичники ооциты дифференцировка пола Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
кета сахалинская область семенники яичники ооциты дифференцировка пола Aquaculture. Fisheries. Angling SH1-691 O. V. Zelennikov GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES |
topic_facet |
кета сахалинская область семенники яичники ооциты дифференцировка пола Aquaculture. Fisheries. Angling SH1-691 |
description |
Early stages of gametogenesis in young chum salmon are investigated under various temperature regimes at three fish farms of Sakhalin region and in laboratory conditions. In all cases, sex differentiation started after the mass hatching, the age of differentiation varied from 65 to 213 days, but the sum of accumulated degree-days was rather stable — from 620.6 to 669.1. The period from the beginning of sex differentiation to the beginning of previtellogenesis lasted 27–144 days depending on conditions, even for fish in the same fish farm. The lower was the water temperature after the beginning of sex differentiation, the smaller sum of degree-days was accumulated by fish before the beginning of previtellogenic growth of oocytes and the shorter was the period of oocyte growth before the fish release from the farm. The period of previtellogenesis in chum salmon always began before the end of larval period, when weight of the yolk sac was from 1.8 to 18.2 % of the total body weight. |
format |
Article in Journal/Newspaper |
author |
O. V. Zelennikov |
author_facet |
O. V. Zelennikov |
author_sort |
O. V. Zelennikov |
title |
GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES |
title_short |
GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES |
title_full |
GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES |
title_fullStr |
GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES |
title_full_unstemmed |
GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES |
title_sort |
gamethogenesis of pacific salmons. 1. development of gonad in young chum salmon oncorhynchus keta walbaum under various temperature regimes |
publisher |
Transactions of the Pacific Research Institute of Fisheries and Oceanography |
publishDate |
2019 |
url |
https://doi.org/10.26428/1606-9919-2019-198-209-220 https://doaj.org/article/24abe27385fe44f19416e30478ac3cb2 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) |
geographic |
Keta Pacific |
geographic_facet |
Keta Pacific |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_source |
Известия ТИНРО, Vol 198, Iss 3, Pp 209-220 (2019) |
op_relation |
https://izvestiya.tinro-center.ru/jour/article/view/501 https://doaj.org/toc/1606-9919 https://doaj.org/toc/2658-5510 1606-9919 2658-5510 doi:10.26428/1606-9919-2019-198-209-220 https://doaj.org/article/24abe27385fe44f19416e30478ac3cb2 |
op_doi |
https://doi.org/10.26428/1606-9919-2019-198-209-220 |
container_title |
Izvestiya TINRO |
container_volume |
198 |
container_start_page |
209 |
op_container_end_page |
220 |
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1779319680874315776 |