1980-82年および1984-86年に捕獲した南半球産ミンククジラの水銀蓄積の比較 Comparison of Mercury Accumulation in Antarctic Minke Whale Collected in 1980-82 and 1984-86

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Mercury concentrations were determined in the liver of Antarctic minke whale (<i>Balaenoptera acutorostrata</i>) collected during 1980-82 and 1984-86, and compared in view of age-dependent accumulation. No significant sexual and geographical variations were observed, while higher mercury concentrations were found in the liver of Antarctic minke whales caught in the 1984-86 season rather than in 1980-82 by commercial whaling. Mercury concentration elevated with age until maturity and then revealed a steady state or slightly declined. However, the age showing maximum level of mercury was found to be older in 1984-86 than in 1980-82. This observation might be attributable to temporal changes in feeding amounts, resulting from disturbance of the Antarctic ecosystem such as uncontrolled management of whale resources in the past.

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  • 日本水産学会誌  

    日本水産学会誌 64(1), 105-109, 1998-01-15 

    日本水産學會

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各種コード

  • NII論文ID(NAID)
    10004852617
  • 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
    4381367
  • 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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