飼育条件下での多毛類アカムシ Halla okudai の捕食行動 Foraging behavior of the polychaete Halla okudai in aquariums

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A unique foraging behavior of the carnivorous polychaete Halla okudai (Lysaretidae) is described in detail. Living bivalves, Ruditapes philippinarum were supplied to adult H. okudai, which were burrowing in sandy sediment in aquariums. The foraging behavior was divided into 4 stages ; responding, searching, handling, and feeding. Responding and searching were considered to be dependent on the olfactory sense, and searching was significantly responsible for the variation in total foraging time. Handling was performed by inhibiting the escape of the bivalve and then opening its shell while secreting a jelly-like material. Bivalve size (23.8-26.3mm shell length) showed a significant correlation to handling time, which ranged from 0.87 to 6.67hr. During feeding, the ploychaete continued to secrete the jelly-like material, which was different in hue from that secreted during handling.

収録刊行物

  • 日本ベントス学会誌 = Benthos research  

    日本ベントス学会誌 = Benthos research 50, 11-17, 1996-02-15 

    JAPANESE ASSOCIATION OF BENTHOLOGY

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各種コード

  • NII論文ID(NAID)
    10002094643
  • NII書誌ID(NCID)
    AN10393541
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    02894548
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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