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Study on the contribution of iron to the increase of primary production in coastal sea

Research Project

Project/Area Number 63490002
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 広領域
Research InstitutionHokkaido University

Principal Investigator

MATSUNAGA Katsuhiko  Hokkaido University Prof., 水産学部, 教授 (90001619)

Co-Investigator(Kenkyū-buntansha) KUDO Isao  Hokkaido University Inst., 水産学部, 助手 (00195455)
KUMA Kenshi  Hokkaido University Inst., 水産学部, 助手 (30205158)
KAJIHARA Masahiro  Hokkaido University Prof., 水産学部, 教授 (20001604)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 1989: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1988: ¥4,300,000 (Direct Cost: ¥4,300,000)
KeywordsIron / Primary production / Phytoplankton / Marine alga / Coastal sea / Photoreduction / Organic acids / Propagation cage / スプリングブル-ム / 鉄の還元 / 基礎生産力 / プランクトン / 食物連鎖
Research Abstract

In natural seawater, dissolved Fe(OH)^+_ is in equilibrium with particulate iron, and its concentration was found to be 0.048 mug/l. The solubility rate,of particulate iron depends on the particulate iron concentration, and the rates of 0.0035, 0.010 and 0.017 mug/l/day were observed when the initial particulate iron concentrations were 1, 3 and 5 mug/l, respectively.
Photoreduction of Fe(lll) by several dissolved hydroxylcarboxylic acids, especially glucaric and gluconic acids, was observed under laboratory conditions. About 130 muM of gluconic acid was detected by HPLC in a diatom culture ( 10^5 cells/ml ) after 20 min exposure to ultraviolet radiation.
Since Fe^<2+> is necessary for the growth of phytoplankton and marine algae, the diffusion of Fe^<2+> from propagation cages made of iron, which were moored on the coastal floors, was monitored. About 1-2 mug/l of Fe^<2+> were detected within 40 m around the cages. We think the cages are suitable for phytoplankton and marine algae propagation.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] Nakabayashi,.S.Matsunaga,K.et al: "Existence of dissolved Fe^<2+> in a spring bloom at Funka Bay" Bull.Japan Fish.Oceanogr. 53. 128-130 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 工藤勲、松永勝彦: "基礎生産力を高めるために各態鉄の効果 昭和63年度日本水産学会 昭和63年10月"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 鈴木祥広、北川知子、工藤勲、松永勝彦: "フルボ酸を含む河川水中のFe(II)の定量法 日本化学会北海道支部1989年夏季研究発表会 平成元年7月"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 久万健志、中林成人、松永勝彦: "鋼鉄製増殖礁の効果-I 海水中における粒状鉄の溶解速度 平成元年度日本水産学会秋期大会 平成元年10月"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 久万健志、中林成人、松永勝彦: "鋼鉄製増殖礁の効果-II 海水中の粒状鉄の溶存鉄への還元機構 平成元年度日本水産学会秋期大会 平成元年10月"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 松永勝彦、鈴木祥広、工藤勲: "鋼鉄製増殖礁の効果-III 鉄増殖礁からのFe(II)の拡散 平成元年度日本水産学会秋季大会 平成元年10月"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 松永勝彦、北川知子、鈴木祥広: 鋼鉄製増殖礁の効果-IV コンブ ウニに対する効果 平成元年度日本水産学会秋期大会 平成元年10月,

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 松永勝彦、久万健志、渡辺浩基、鈴木祥広: 鋼鉄製増殖礁の効果-V マコンブによる鉄の取り込み速度 平成2年度日本水産学会北海道支部例会 平成2年1月,

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Nakabayashi,S. et al.: "Existence of dissolved Fe^<2+> in a spring bloom at Funka Bay" Bull. Jap. Soc. Fish. Oceanogr. 53, 128-130 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kudo,I. & Matsunaga,K.: "Contribution of iron to the increase of primary production" Paper presented at the annual meeting of the Suisangakkai, Shimizu, Oct., 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Suzuki,Y. et al.: "Determination of Fe^<2+> in river water" Paper presented at the Hokkaido meeting of the Chemical Soc. Jap., Tomakomai, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kuma,K. et al.: "Solubility and solubility rate of particulate iron in seawater" Paper presented at the annual meeting of the Suisangakkai, Miyazaki, Oct., 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kuma,K. et al.: "Mechanism for reduction of particulate iron to dissolved Fe^<2+> in seawater" Paper presented at the annual meeting of the Suisangakkai, Miyazaki, Oct., 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Matsunaga,K. et al.: "Diffusion of Fe^<2+> from propagation cages made of iron" Paper presented at the annual meeting of the Suisangakkai, Miyazaki, Oct., 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Matsunaga,K. et al.: "Contribution of iron to the increase of marine algae" Paper presented at the annual meeting of the Suisangakkai, Miyazaki, Oct., 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Matsunaga,K. et al.: "Uptake rate of dissolved iron by marine algae" Paper presented at the Hokkaido meeting of the Suisangakkai, Sapporo, Jan., 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Nakabayashi,S.,Matsunaga,K.et al.: "Existence of dissolved Fe^<2+> in a spring bloom at Funka Bay." Bull.Japan Fish.Oceanogr.53. 128-130 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 工藤勲、松永勝彦: "基礎生産力を高めるための各態鉄の効果 昭和63年度日本水産学会秋季大会 昭和63年10月"

    • Related Report
      1989 Annual Research Report
  • [Publications] 鈴木祥広、北川知子、工藤勲、松永勝彦: "フルボ酸を含む河川水中のFe(II)の定量法 日本化学会北海道支部1989年夏季研究発表会 平成元年7月"

    • Related Report
      1989 Annual Research Report
  • [Publications] 久万健志、中林成人、松永勝彦: "鋼鉄製増殖礁の効果-1 海水中における粒状鉄の溶解速度 平成元年度日本水産学会秋季大会 平成元年10月"

    • Related Report
      1989 Annual Research Report
  • [Publications] 久万健志、中林成人、松永勝彦: "鋼鉄製増殖礁の効果-II 海水中の粒状鉄からの溶存鉄への還元機構 平成元年度日本水産学会秋季大会 平成元年10月"

    • Related Report
      1989 Annual Research Report
  • [Publications] 松永勝彦、鈴木祥広、工藤勲: "鋼鉄製増殖礁の効果-III 鉄増殖礁からのFe(II)の拡散 平成元年度日本水産学会秋季大会 平成元年10月"

    • Related Report
      1989 Annual Research Report
  • [Publications] 松永勝彦、北川知子、鈴木祥広: "鋼鉄製増殖礁の効果-IV コンブ、ウニに対する効果 平成元年度日本水産学会秋季大会 平成元年10月"

    • Related Report
      1989 Annual Research Report
  • [Publications] 松永勝彦、久万健志、渡辺浩基、鈴木祥広: "鋼鉄製増殖礁の効果-V マコンブによる鉄の取り込み速度 平成2年度日本水産学会北海道支部例会 平成2年1月"

    • Related Report
      1989 Annual Research Report
  • [Publications] Nakabayashi;et al.: Bull.Jap.Soc.Fish.Oceanogr.(1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 工藤勲: 水産学会、秋季大会. 95 (1988)

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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