Relationship between Year-to-year Fluctuations in Recruitment of Juvenile Sea Urchins Strongylocentrotus nudus and Seawater Temperature in Southwestern Hokkaido
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- Agatsuma Yukio
- Hokkaido Nuclear Energy Environmental Research Center Laboratory of Applied Aquatic Botany, Faculty of Agriculture, Tohoku University
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- Nakao Shigeru
- Faculty of Fisheries, Hokkaido University
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- Motoya Satoshi
- Muroran Branch, Hokkaido Hakodate Fisheries Experimental Station
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- Tajima Kenichiro
- Hokkaido Central Fisheries Experimental Station
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- Miyamoto Tateki
- Hokkaido Hakodate Fisheries Experimental Station
書誌事項
- タイトル別名
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- Relationship between Year-to-year Fluctuations in Recruitment of Juvenile Sea Urchins <i>Strongylocentrotus nudus</i> and Seawater Temperature in Southwestern Hokkaido
- Relationship between Year-to-year Fluct
この論文をさがす
抄録
Year-to-year fluctuations in the recruitment of the juvenile sea urchin Strongylocentrotus nudus were monitored between 1980 and 1995 off the coasts of Okushiri Island and Shimamaki on the Sea of Japan coast, southwestern Hokkaido. High recruitment levels (14.1 ind./m2) of juveniles in 1984 and a continuous recruitment after 1990 were observed at the survey areas. The relationship between juvenile densities and average water temperature in September of the previous year was statistically significant. We suggest that high water temperature in September contributes to shortening of the larval period. The dominant 1983 year-class population contributed to an increase in commercial catch at the survey areas, and this was also found in the sub-prefectures of Shiribeshi and Hiyama.
収録刊行物
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- Fisheries science
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Fisheries science 64 (1), 1-5, 1998
公益社団法人 日本水産学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001204428641920
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- NII論文ID
- 130003742090
- 10004872878
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- NII書誌ID
- AA10993718
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- COI
- 1:CAS:528:DyaK1cXhtlygtr8%3D
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- NDL書誌ID
- 4406493
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- ISSN
- 09199268
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可