1990-91~91-92年の岩内湾におけるスケトウダラ Theragra chalcogramma (Pallas) 卵稚仔の分布動向と最近の特徴
The distribution patterns of eggs, larvae and postlarvae of the walleye pollock Theragra chalcogramma (Pallas) observed in the seasons of 1990-91 to 91-92 in the Iwanai Bay (Japan Sea) were analysed and compared with that of 1986-1987 to 89-90. The maximum level of the eggs, larvae and postlarvae oc...
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北海道立中央水産試験場
1993
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ftotaruunibarrel:oai:barrel.repo.nii.ac.jp:00003716 2023-07-02T03:33:51+02:00 1990-91~91-92年の岩内湾におけるスケトウダラ Theragra chalcogramma (Pallas) 卵稚仔の分布動向と最近の特徴 八木 宏樹 武藤 卓志 Yagi Hiroki Mutoh Takashi 1993 https://barrel.repo.nii.ac.jp/?action=repository_uri&item_id=3716 http://hdl.handle.net/10252/4284 https://barrel.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3716&item_no=1&attribute_id=19&file_no=1 ja jpn 北海道立中央水産試験場 https://barrel.repo.nii.ac.jp/?action=repository_uri&item_id=3716 http://hdl.handle.net/10252/4284 北海道立水産試験場研究報告, 42, 91-100(1993) 0914-6830 AN10008130 https://barrel.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3716&item_no=1&attribute_id=19&file_no=1 660 水産学 Journal Article 1993 ftotaruunibarrel 2023-06-10T19:31:23Z The distribution patterns of eggs, larvae and postlarvae of the walleye pollock Theragra chalcogramma (Pallas) observed in the seasons of 1990-91 to 91-92 in the Iwanai Bay (Japan Sea) were analysed and compared with that of 1986-1987 to 89-90. The maximum level of the eggs, larvae and postlarvae occurred in 1989-90 for recent years, whereas the lowest levels were shown in 1991 to 92 followed by 1987-88. Since the season 1991-92 corresponds to the recruitment season of the 1987-88 spawning population. We suggest that there is some relation between the parent and its progeny stocks in spite of the hypothesis that there is rare numerical relation between them for this species. We also discussed the advanced spawning season in 91-92 in comparison with the previous seasons and relation to the low level abundance of eggs due to over harvesting. Article in Journal/Newspaper Theragra chalcogramma Barrel - Otaru University of Commerce Academic Collections |
institution |
Open Polar |
collection |
Barrel - Otaru University of Commerce Academic Collections |
op_collection_id |
ftotaruunibarrel |
language |
Japanese |
topic |
660 水産学 |
spellingShingle |
660 水産学 八木 宏樹 武藤 卓志 Yagi Hiroki Mutoh Takashi 1990-91~91-92年の岩内湾におけるスケトウダラ Theragra chalcogramma (Pallas) 卵稚仔の分布動向と最近の特徴 |
topic_facet |
660 水産学 |
description |
The distribution patterns of eggs, larvae and postlarvae of the walleye pollock Theragra chalcogramma (Pallas) observed in the seasons of 1990-91 to 91-92 in the Iwanai Bay (Japan Sea) were analysed and compared with that of 1986-1987 to 89-90. The maximum level of the eggs, larvae and postlarvae occurred in 1989-90 for recent years, whereas the lowest levels were shown in 1991 to 92 followed by 1987-88. Since the season 1991-92 corresponds to the recruitment season of the 1987-88 spawning population. We suggest that there is some relation between the parent and its progeny stocks in spite of the hypothesis that there is rare numerical relation between them for this species. We also discussed the advanced spawning season in 91-92 in comparison with the previous seasons and relation to the low level abundance of eggs due to over harvesting. |
format |
Article in Journal/Newspaper |
author |
八木 宏樹 武藤 卓志 Yagi Hiroki Mutoh Takashi |
author_facet |
八木 宏樹 武藤 卓志 Yagi Hiroki Mutoh Takashi |
author_sort |
八木 宏樹 |
title |
1990-91~91-92年の岩内湾におけるスケトウダラ Theragra chalcogramma (Pallas) 卵稚仔の分布動向と最近の特徴 |
title_short |
1990-91~91-92年の岩内湾におけるスケトウダラ Theragra chalcogramma (Pallas) 卵稚仔の分布動向と最近の特徴 |
title_full |
1990-91~91-92年の岩内湾におけるスケトウダラ Theragra chalcogramma (Pallas) 卵稚仔の分布動向と最近の特徴 |
title_fullStr |
1990-91~91-92年の岩内湾におけるスケトウダラ Theragra chalcogramma (Pallas) 卵稚仔の分布動向と最近の特徴 |
title_full_unstemmed |
1990-91~91-92年の岩内湾におけるスケトウダラ Theragra chalcogramma (Pallas) 卵稚仔の分布動向と最近の特徴 |
title_sort |
1990-91~91-92年の岩内湾におけるスケトウダラ theragra chalcogramma (pallas) 卵稚仔の分布動向と最近の特徴 |
publisher |
北海道立中央水産試験場 |
publishDate |
1993 |
url |
https://barrel.repo.nii.ac.jp/?action=repository_uri&item_id=3716 http://hdl.handle.net/10252/4284 https://barrel.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3716&item_no=1&attribute_id=19&file_no=1 |
genre |
Theragra chalcogramma |
genre_facet |
Theragra chalcogramma |
op_relation |
https://barrel.repo.nii.ac.jp/?action=repository_uri&item_id=3716 http://hdl.handle.net/10252/4284 北海道立水産試験場研究報告, 42, 91-100(1993) 0914-6830 AN10008130 https://barrel.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3716&item_no=1&attribute_id=19&file_no=1 |
_version_ |
1770273978310459392 |