Life history of the copepod Hemicyclops gomsoensis (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 <i>Hemicyclops gomsoensis</i> associated with the burrows of the mud shrimp <i>Upogebia major</i> and the ocypodid crab <i>Macrophthalmus japonicus</i> 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 <i>H. gomsoensis</i> is planktonic during the naupliar stages and settles on the bottom during the first copepodid stage to inhabit the burrows of <i>U. major</i> and, to a lesser extent, those of <i>M. japonicus</i>. 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

  • Plankton & benthos research

    Plankton & benthos research 2(3), 134-146, 2007-08-01

    日本プランクトン学会、日本ベントス学会

参考文献:  48件中 1-48件 を表示

被引用文献:  3件中 1-3件 を表示

各種コード

  • NII論文ID(NAID)
    10019844955
  • NII書誌ID(NCID)
    AA12130745
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    18808247
  • NDL 記事登録ID
    8881073
  • NDL 雑誌分類
    ZR1(科学技術--生物学)
  • NDL 請求記号
    Z54-J424
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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