沖縄島沿岸におけるハマフエフキの着底と成長に伴う移動 Settlement and Migration of Early Stage Spangled Emperor, Lethrinus nebulosus(Pisces:Lethrinidae), in the Coastal Waters off Okinawa island, Japan

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Settlement and migration of the early life stage spangled emperor were studied in the Hanechi region off the northern part of Okinawa island from 1984 to 1991, by means of underwater observations with SCUBA, samplings of juveniles gathered by lamp and with seine, and also release and recapture experiments of hatchery-reared juveniles.<br>Juveniles just after settlement, about 17mm in fork length (<i>FL</i>), were first observed in seagrass beds shallower than 3m depth in May and increased in number through July. After August they gradually moved out of the seagrass beds and disappeared after November. Samplings with fish-lamp and seine revealed that a peak of juvenile settlement took place in June, although a few individuals just before settlement were caught as late as in October. The reared juveniles, which were tagged and released in November when they were 5-6 months old and 104mm in mean <i>FL</i>, stayed within 3km of the release point until June of next year, and expanded their distribution range to the outer edges of the coral reef facing the open sea, which was 7km distant from the release point, in October.

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  • 日本水産学会誌  

    日本水産学会誌 64(4), 618-625, 1998-07-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004853791
  • NII書誌ID(NCID)
    AN00193422
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00215392
  • NDL 記事登録ID
    4523689
  • NDL 雑誌分類
    ZR26(科学技術--農林水産--水産)
  • NDL 請求記号
    Z18-345
  • データ提供元
    CJP書誌  CJP引用  NDL  IR  J-STAGE 
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