Effect of Water Mass Replacement on Seasonal Variations in the Copepod Community in Lagoon Notoro-ko, Hokkaido, Japan
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- Kitamura Mitsuaki
- Graduate School of Bioindustry, Tokyo University of Agriculture
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- Nakagawa Yoshizumi
- Faculty of Bioindustry, Tokyo University of Agriculture
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- Nishino Yasuto
- Faculty of Bioindustry, Tokyo University of Agriculture
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- Taniguchi Akira
- Sanyo Techno Marine, Inc.
Bibliographic Information
- Other Title
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- 北海道東部の海跡湖能取湖におけるカイアシ類群集の季節変動に及ぼす水塊交替の影響
- ホッカイドウ トウブ ノ ウミ セキコ ノトロコ ニ オケル カイアシルイ グンシュウ ノ キセツ ヘンドウ ニ オヨボス スイカイ コウタイ ノ エイキョウ
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Abstract
Water mass conditions in Lagoon Notoro-ko are affected by the hydrodynamics of the Okhotsk Sea out of the lagoon. In the present study, the relationship between seasonal replacement of the water masses and seasonal variation in abundance of copepods (or copepod species) was examined. During summer and fall, high saline water (>33 psu) originating from the Soya Warm Current occupied the lagoon. In winter, this water was replaced by lower saline water (<32 psu) from the East Sakhalin Current. Abundance of copepods in the lagoon was highest in May and lowest in November, and then increased again in December. Although relative abundances of cold-water and eurythermic species was comparable in May and July, the latter became dominant in August and September and the former in October and December. This indicates that seasonal change of the community structure of copepods in Lagoon Notoro-ko is strictly controlled by the seasonal water mass replacement.
Journal
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- Eco-Engineering
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Eco-Engineering 26 (3), 89-94, 2014
The Society of Eco-Engineering
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Details 詳細情報について
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- CRID
- 1390001205189906432
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- NII Article ID
- 130004687740
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- NII Book ID
- AA12005685
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- ISSN
- 18804500
- 13470485
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- NDL BIB ID
- 025749739
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed