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        <identifier>oai:fra.repo.nii.ac.jp:02003381</identifier>
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          <dc:title xml:lang="ja">土佐湾陸棚崖産の底魚類の食性の研究</dc:title>
          <dc:title xml:lang="en">FOOD STUDIES OF BOTTOM FISHES IN CONTINENTAL SLOP OF TOSA-WAN</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Kudo, Shinji</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">工藤, 晋二</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">クドウ, シンジ</jpcoar:creatorName>
            <jpcoar:familyName xml:lang="en">Kudo</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja">工藤</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja-Kana">クドウ</jpcoar:familyName>
            <jpcoar:givenName xml:lang="en">Shinji</jpcoar:givenName>
            <jpcoar:givenName xml:lang="ja">晋二</jpcoar:givenName>
            <jpcoar:givenName xml:lang="ja-Kana">シンジ</jpcoar:givenName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Toriyama, Masahiro</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">通山, 正弘</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">トオリヤマ, マサヒロ</jpcoar:creatorName>
            <jpcoar:familyName xml:lang="en">Toriyama</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja">通山</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja-Kana">トオリヤマ</jpcoar:familyName>
            <jpcoar:givenName xml:lang="en">Masahiro</jpcoar:givenName>
            <jpcoar:givenName xml:lang="ja">正弘</jpcoar:givenName>
            <jpcoar:givenName xml:lang="ja-Kana">マサヒロ</jpcoar:givenName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Okamura, Osamu</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">岡村, 牧</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">オカムラ, オサム</jpcoar:creatorName>
            <jpcoar:familyName xml:lang="en">Okamura</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja">岡村</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja-Kana">オカムラ</jpcoar:familyName>
            <jpcoar:givenName xml:lang="en">Osamu</jpcoar:givenName>
            <jpcoar:givenName xml:lang="ja">牧</jpcoar:givenName>
            <jpcoar:givenName xml:lang="ja-Kana">オサム</jpcoar:givenName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Morita, Syoichi</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">森田, 正一</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">モリタ, ショウイチ</jpcoar:creatorName>
            <jpcoar:familyName xml:lang="en">Morita</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja">森田</jpcoar:familyName>
            <jpcoar:familyName xml:lang="ja-Kana">モリタ</jpcoar:familyName>
            <jpcoar:givenName xml:lang="en">Syoichi</jpcoar:givenName>
            <jpcoar:givenName xml:lang="ja">正一</jpcoar:givenName>
            <jpcoar:givenName xml:lang="ja-Kana">ショウイチ</jpcoar:givenName>
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          <datacite:description xml:lang="en" descriptionType="Abstract">During the early summer of 1968, a research for the living things inhabiting the continental slope was made in Tosa Wan, and as the result 112 species of fishes were obtained. In order to make clear the food habits of these fishes, 25 representative species listed in Table 1 were picked up and the stomach contents were examined qualitatively and quantitatively. Through analytical investigation, we noticed that the group feeding rate (the ratio of the fishes with stomach contents to whole individuals in each sampling group)ranged from 40 to 80 percent, though the diurnal periodicity of feeding activity was not so remarkable. Considering the frequency distribution of the stomach content index, these 25 species were divided into five ecological forms. From the trophic level, we determined the rate of the plankton-feeder, benthos-eater and Nekton-predator to the total catch, and the resultant value was19.5, 45.2 and 35.1 percent, respectively. The result was roughly in accordance with the case of the bottom fishes catched by the middle trawlers on the continental shelf.</datacite:description>
          <datacite:description xml:lang="ja" descriptionType="Abstract">1968年5、6月に土佐湾の陸棚崖で漁獲された底魚類の胃内容物を調査し、食性に関する知見を得た。1. 調査は漁獲物sizeのものについて実施した。2. 各魚種の群捕食率をみると、40~80%位になり、摂餌活動の日周期的変化はあまり顕著でない。3. 各魚種別に、胃内容物の種類を調べて、Plankton、Benthos、Nekton に大別した。4. 胃内容物重量指数の頻度分布の型で、25魚種を5型に類型化が可能である。しかしこれらの型と類型化された魚種との関連についての考察は充分にできなかった。5. Trophic level より漁獲量をPlankton食性魚、Benthos食性魚、Nekton捕食魚の各漁獲量に区分して百分率でみると、それぞれ19.5%、45.2%および35.1%であって、陸棚での沖合底びき網漁獲物の場合と大差はみられなかった。</datacite:description>
          <dc:publisher xml:lang="ja">南西海区水産研究所</dc:publisher>
          <dc:publisher xml:lang="en">Nansei Regional Fisheries Research Laboratory</dc:publisher>
          <datacite:date dateType="Issued">1970-03-25</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_6501">departmental bulletin paper</dc:type>
          <jpcoar:identifier identifierType="URI">https://fra.repo.nii.ac.jp/records/2003381</jpcoar:identifier>
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            <jpcoar:relatedIdentifier identifierType="Local">nnf_k_2_85</jpcoar:relatedIdentifier>
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            <jpcoar:relatedIdentifier identifierType="URI">https://agriknowledge.affrc.go.jp/RN/2010841385</jpcoar:relatedIdentifier>
            <jpcoar:relatedTitle xml:lang="ja">日本農学文献記事索引(agriknowledge)</jpcoar:relatedTitle>
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          <jpcoar:sourceIdentifier identifierType="NCID">AN00181988</jpcoar:sourceIdentifier>
          <jpcoar:sourceIdentifier identifierType="PISSN">0388-841X</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle xml:lang="ja">南西海区水産研究所研究報告</jpcoar:sourceTitle>
          <jpcoar:sourceTitle xml:lang="en">Bulletin of the Nansei Regional Fisheries Research Laboratory</jpcoar:sourceTitle>
          <jpcoar:volume>2</jpcoar:volume>
          <jpcoar:numPages>19</jpcoar:numPages>
          <jpcoar:pageStart>85</jpcoar:pageStart>
          <jpcoar:pageEnd>103</jpcoar:pageEnd>
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