定置網漁船の魚倉内における海水氷冷却に及ぼすミズクラゲの阻害作用 Detrimental Effect of Moon Jellyfish Aurelia aurita on Cooling of Sea Water in the Fish Hold of Set Net Fishing Boat

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著者

    • 林 陽子 HAYASHI Yoko
    • 神奈川県水産総合研究所相模湾試験場 Sagami Bay Experiment Station, Kanagawa Prefectural Fisheries Research Institute

抄録

Poor cooling in the fish hold leads to the decline of freshness in the set net catch. This phenomenon typically occurs when jellyfish accidentally captured in the set net are kept in the hold with the fish catch, which has been recognized by fisherman for a long time. Such detrimental effects caused by moon jellyfish were investigated experimentally. The temperature of the fish hold only containing the jellyfish remained at around 20°C even cooled with ice. The maximum temperature rise of the fish hold increased in proportion to the total wet weight of the mixed jellyfish, decreasing the quality and freshness of fish in the hold. The temperatures of the fish hold further increased when the mixed jellyfish were naturally vibrated in the fishing boat, reaching 1.5 times as high as that observed when the jellyfish were allowed to stand without vibration. While the heat conductivity of sea water was affected by the mucus secreted by the jellyfish, the quantities and protein concentrations of the secreted mucus increased in proportion to the body weight of the jellyfish.

収録刊行物

  • 日本水産学会誌  

    日本水産学会誌 64(6), 1046-1052, 1998-11-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004854754
  • 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
    4605819
  • 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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