徳島県志和岐川に遡上するヤマトヌマエビの生態 ECOLOGY OF AN ATYID SHRIMP CARIDINA JAPONICA (DE MAN, 1892) MIGRATING TO UPSTREAM HABITATS IN THE SHIWAGI RIVULET, TOKUSHIMA PREFECTURE

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The ecology of an atyid shrimp Caridina japonica was studied in the Shiwagi Rivulet. Yuki Town, Tokushima Pref. This species is amphidromous in nature. The juveniles migrate upstream from the sea exclusively during the night and can be seen climbing a vertical wall, where the rivulet water is trickling down. From field observation, rheotaxis seems, to be the most important orientation mechanism for the upstream migration of juveniles. The peak month of egg incubation was June. The mean duration of incubation was 40 days at 20℃ in aquaria. From these values and with known information on the duration of larval life, it was estimated that the period of upstream migration starts in August. Most males die within two years after metamorphosis, however, many females survive for more than two years.

収録刊行物

  • 甲殻類の研究

    甲殻類の研究 21(0), 1-13, 1992

    一般社団法人 日本甲殻類学会

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各種コード

  • NII論文ID(NAID)
    110002698367
  • NII書誌ID(NCID)
    AN0008054X
  • 本文言語コード
    JPN
  • 資料種別
    雑誌論文
  • ISSN
    02873478
  • NDL 記事登録ID
    3828230
  • NDL 刊行物分類
    RA48(生態--動物)
  • NDL 雑誌分類
    ZR4(科学技術--生物学--動物)
  • NDL 請求記号
    Z18-725
  • データ提供元
    CJP引用  NDL  NII-ELS  J-STAGE 
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