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        <identifier>oai:fra.repo.nii.ac.jp:02010773</identifier>
        <datestamp>2025-11-10T04:54:50Z</datestamp>
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          <dc:title>夏季東シナ海大陸棚におけるカドミウム，リン，窒素の再生</dc:title>
          <dc:title>Regeneration of Cd, P, and N on the continental shelf of the East China Sea in summer</dc:title>
          <dc:creator>Abe, Kazuo</dc:creator>
          <dc:creator>467</dc:creator>
          <dc:creator>阿部, 和雄</dc:creator>
          <dc:creator>20372013</dc:creator>
          <dc:creator>アベ, カズオ</dc:creator>
          <dc:subject>Regeneration; Cd; P; N; East China Sea</dc:subject>
          <dc:description>Regeneration of three biolimiting constituents, cadmium（Cd）, phosphate（PO４）, and nitrite plus nitrate（NO2+NO3）, was examined on the continental shelf area of the East China Sea in the summer of 1999. Vertical profiles of these constituents showed increase of concentrations toward the sea bottom. The regenerated（molar）ratios to the consumed oxygen（O2）were estimated to be 0.00134×10-3: 0.00684: 0.0998: 1 by plotting these constituents against the Apparent Oxygen Utilization（AOU）, and these ratios generally agreed with a previous study near the Ryukyu Islands. The apparent increase of Cd, PO4, and NO2＋NO3 in the bottom layer from winter to summer was around 0.079nM, 0.41µM, and 6.1µM, respectively, and this was attributable to the active supply caused by the decomposition of the organic matter in the bottom layer in this season.</dc:description>
          <dc:description>東シナ海大陸棚域において1999年夏，生物制限元素であるカドミウム，リン酸塩，硝酸＋亜硝酸の再生を調べた。これらの元素の鉛直分布は海底に向かってその濃度は増加していた。再生の際に消費された酸素に対する比はモル比で0.00134×10 - 3 : 0.00684 : 0.0998 : 1であり，この結果は琉球列島近海における以前の調査結果と概ね一致する。冬季から夏季にかけての底層でのカドミウム，リン酸塩，硝酸＋亜硝酸塩の見かけの濃度増加はそれぞれ0.079 nM，0.41 μM，6.1 μMであり，これは夏季における底層での有機物分解による活発な供給を示唆する。</dc:description>
          <dc:description>departmental bulletin paper</dc:description>
          <dc:publisher>水産総合研究センター</dc:publisher>
          <dc:date>2002-03</dc:date>
          <dc:type>VoR</dc:type>
          <dc:format>application/pdf</dc:format>
          <dc:identifier>水産総合研究センター研究報告</dc:identifier>
          <dc:identifier>3</dc:identifier>
          <dc:identifier>27</dc:identifier>
          <dc:identifier>29</dc:identifier>
          <dc:identifier>Bulletin of  Fisheries Research Agency</dc:identifier>
          <dc:identifier>AA11589591</dc:identifier>
          <dc:identifier>1346-9894</dc:identifier>
          <dc:identifier>https://fra.repo.nii.ac.jp/record/2010773/files/fra_k_3_27.pdf</dc:identifier>
          <dc:identifier>https://fra.repo.nii.ac.jp/records/2010773</dc:identifier>
          <dc:language>eng</dc:language>
          <dc:relation>fra_k_3_27</dc:relation>
          <dc:relation>日本農学文献記事索引（AgriKnowledge）</dc:relation>
          <dc:relation>https://agriknowledge.affrc.go.jp/RN/2010651114</dc:relation>
          <dc:rights>open access</dc:rights>
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