Life history of the copepod Hemicyclops gomsoensis (Poecilostomatoida, Clausidiidae) associated with decapod burrows in the Tama-River estuary, central Japan
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- ITOH HIROSHI
- Suidosha Co. Ltd
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- NISHIDA SHUHEI
- Ocean Research Institute, University of Tokyo
書誌事項
- タイトル別名
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- Life history of the copepod <i>Hemicyclops gomsoensis</i> (Poecilostomatoida, Clausidiidae) associated with decapod burrows in the Tama-River estuary, central Japan
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A 17-month field survey and laboratory experiments were conducted to investigate the life cycle, seasonal population fluctuations, and salinity tolerance in the poecilostomatoid copepod Hemicyclops gomsoensis associated with the burrows of the mud shrimp Upogebia major and the ocypodid crab Macrophthalmus japonicus in the mud-flats of the Tama-River estuary, central Japan. On the basis of sample collections in the water column and from the burrows, it was revealed that H. gomsoensis is planktonic during the naupliar stages and settles on the bottom during the first copepodid stage to inhabit the burrows of U. major and, to a lesser extent, those of M. japonicus. While females carrying egg-sacs were present throughout the year, the copepods' reproduction took place mainly during early summer to autumn with a successive decrease from autumn to winter. Occasionally the copepod populations in the burrows suffered from severe flushes of river water that led to salinity decreases in the burrow water to fatal levels, but usually the salinity in the burrow was within optimal levels and permitted recovery and maintenance of the populations.
収録刊行物
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- Plankton and Benthos Research
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Plankton and Benthos Research 2 (3), 134-146, 2007
日本プランクトン学会、日本ベントス学会
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詳細情報 詳細情報について
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- CRID
- 1390282680242555648
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- NII論文ID
- 10019844955
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- NII書誌ID
- AA12130745
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- ISSN
- 1882627X
- 18808247
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- NDL書誌ID
- 8881073
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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