養殖クロダイに寄生するAlella macrotrachelusの生活史  [in Japanese] Life Cycle of Alella macrotrachelus (Copepoda) Parasitic on Cultured Black Sea-bream  [in Japanese]

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Abstract

Recently, industrial farming of black sea-bream, Acanthopagrus schlegeli (Bleeker), has grown prosperous in the Inland Sea of Japan. This species is said to be fairly resistant to environmental water pollution and diseases as compared with yellow tail, Seriola quinqueradiata, a popular species in mariculture of our country. However, some ectoparasites are known to attack cultured black sea-bream. Among them, Alella macrotrachelus (Brian, 1906) (Copepoda: Lerneopodidae) with which we deal here seems to be the most harmful gill parasite.In this paper the development of this parasite is described, based on specimens from laboratory experiments. The female life cycle proved to consist of seven stages; one nauplius stage, one copepodid stage, four chalimus stages (attached by frontal filament), and the adult stage (attached by bulla). The life cycle of the male could not be revealed thoroughly, but it is clear that the male gets into the life of superinfection on the female at its second chalimus stage. Sexual dimorphism becomes distinct in the second chalimus stage.

Journal

  • Journal of the Faculty of Applied Biological Science,Hiroshima University

    Journal of the Faculty of Applied Biological Science,Hiroshima University 19(2), p199-214, 1980-12

    広島大学生物生産学部

Codes

  • NII Article ID (NAID)
    120005856183
  • NII NACSIS-CAT ID (NCID)
    AN00213621
  • Text Lang
    JPN
  • Article Type
    departmental bulletin paper
  • Journal Type
    大学紀要
  • ISSN
    03877647
  • NDL Article ID
    2297586
  • NDL Source Classification
    RB96(水産--水産病理・水産保護)
  • NDL Source Classification
    ZR1(科学技術--生物学) // ZR6(科学技術--農林水産)
  • NDL Call No.
    Z18-199
  • Data Source
    NDL  IR 
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