浅海養魚場における養殖マコンブ, <I>Laminaria japonica</I>の生長過程とN, P吸収速度

DOI
  • 耒代 勇樹
    鹿児島大学大学院連合農学研究科海洋生産環境学講座
  • 門脇 秀策
    鹿児島大学水産学部資源育成科学講座

書誌事項

タイトル別名
  • The Growth Process and N, P Uptake Rates of <I>Laminaria japonica</I> Cultured in Coastal Fish Farms

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抄録

This experiment was carried out to estimate biological water purification by cultured Laminaria japonica influenced upon light intensity, dissolved inorganic nutrients and water temperature. Samples of Laminaria japonica were cultured in coastal fish farms from December, 2000 to July, 2001. Blade length and blade width reached to 160-250 cm and 7-10 cm in enlargement phase from January to April, respectively. Wet weight reached to 100-190 g in substantialization phase from May to June. N, P average contents reached to 4.4 mg N/g dry and 0.74 mg P/g dry on June, respectively. N, P maximum uptake rates in enlargement and substantialization phase were 1.2 mg N/m2/day, 0.23 mg P/m2/day and 2.9 mg N/m2/day, 0.43 mg P/m2/day, respectively. Michaelis-Menten's constants of N, P uptake rates in enlargement and substantialization phase were l8 μg N/l, 3.9 μg P/l and 29, μg N/l, 8.7, μg P/l, respectively. Downward irradiance at the N, P maximum uptake rates in enlargement and substantialization phase were 1, 020 μmol/m2/s and 720 μmol/m2/s, respectively. Uptake rates of N and P at 20°C were 2.0 mg N/m2/day and 0.32 mg P/m2/day, respectively. Water temperature coefficients of N, P uptake rates were 1.071 and 1.062, respectively.

収録刊行物

  • 水産増殖

    水産増殖 51 (1), 15-23, 2003

    日本水産増殖学会

詳細情報 詳細情報について

  • CRID
    1390282679696998016
  • NII論文ID
    130003865705
  • NII書誌ID
    AN00124667
  • DOI
    10.11233/aquaculturesci1953.51.15
  • ISSN
    21850194
    03714217
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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