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ID 41488
本文ファイル
別タイトル
Life Cycle of Alella macrotrachelus (Copepoda) Parasitic on Cultured Black Sea-bream
著者
河東 勝康
室賀 清邦
伊澤 邦彦
笠原 正五郎
NDC
水産業
抄録(英)
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.
掲載誌名
広島大学生物生産学部紀要
19巻
2号
開始ページ
199
終了ページ
214
出版年月日
1980-12-25
出版者
広島大学生物生産学部
ISSN
0387-7647
NCID
NAID
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
生物圏科学研究科
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