{"created":"2025-03-12T05:54:29.873160+00:00","id":2013764,"links":{},"metadata":{"_buckets":{"deposit":"d740cc55-f184-44d1-85fb-1299306df652"},"_deposit":{"created_by":92,"id":"2013764","owner":"92","owners":[92],"pid":{"revision_id":0,"type":"depid","value":"2013764"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02013764","sets":["1:1735006234112"]},"author_link":["989","801","476","3459"],"control_number":"2013764","item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-02-20","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"18","bibliographicPageEnd":"35","bibliographicPageStart":"18","bibliographicVolumeNumber":"36","bibliographic_titles":[{"bibliographic_title":"SH\"U\"N サスティナブルでヘルシーな “うまい” 日本の魚プロジェクトホームページ（閉鎖）","bibliographic_titleLang":"ja"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"生態系への影響の把握に必要となる情報、モニタリングの有無について、中西部太平洋における生態系と混獲の問題、生態系モデル解析、はえ縄による混獲情報が取りまとめられている。熱帯まぐろ類とカツオの仔稚魚、動物プランクトン、及び海洋環境の調査が不定期的に実施されている。2008年から科学オブザーバー計画が確立され、まき網による漁獲物情報が部分的に収集可能となっている。\n\n評価対象種を漁獲する漁業による他魚種への影響として、混獲利用種であるキハダの資源状態は懸念される状態にない。混獲非利用種はツムブリ、クロトガリザメ、アミモンガラ、クサヤモロ、シイラなどである。東部太平洋でのPSA評価では、クロトガリザメが中程度のリスクと判断された以外は軽微とされている。環境省指定の絶滅危惧種のうち、アカウミガメ、アオウミガメ、タイマイでリスクが中程度と判断された。\n\n食物網を通じたカツオ漁獲の間接影響、漁業による環境への影響についてみると、カツオの捕食者として、メカジキ、クロカジキ、マカジキ、アオザメ、ヨシキリザメ、クロトガリザメ、ヨゴレ、大型のメバチとキハダなどがあげられる。中西部太平洋表層の生態系モデルEcopathのMixed trophic impactによれば、カジキ類、サメ類への負の影響は軽微であるが、キハダおよびカツオ自身に対しては中程度の負の影響が検出された。魚食性のカツオは餌生物に対する選択性は弱く日和見食性と考えられている。上記生態系モデルを用いた解析によれば、餌生物である魚類、甲殻類、頭足類に対する負の影響は軽微である。カツオとほぼ同等の栄養段階を持つ肉食性魚類についての上記生態系モデルの解析によれば、キハダへの負の影響が検出された。\n\n漁獲物の平均栄養段階MTLcは1980年頃より上昇傾向にあり、高次栄養段階生物の現存量および多様度が低下していることから生態系特性に一部変化が懸念される。\n\nWCPFC海域における日本漁船による海洋への汚染や廃棄物の投棄についての違反報告は見いだせなかった。単位漁獲量あたり排出量（t-CO2/t）については、大中型かつおまぐろ1そうまき網は我が国漁業の中で比較的低く、排出ガスによる大気環境への影響は軽微と考えられる。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"2. 海洋環境と生態系への配慮\n\n　概要\n\n　評価範囲\n\n　2.1 操業機の環境・生態系情報，科学調査，モニタリング\n　　2.1.1 基盤情報の蓄積\n　　2.1.2 科学調査の実施\n　　2.1.3 漁業活動を通じたモニタリング\n\n　2.2 同時漁獲種\n　　2.2.1 混獲利用種\n　　2.2.2 混獲非利用種\n　　2.2.3 希少種\n\n　2.3 生態系・環境\n　　2.3.1 食物網を通じた間接作用\n　　　2.3.1.1 捕食者\n　　　2.3.1.2 餌生物\n　　　2.3.1.3 競争者\n　　2.3.2 生態系全体\n　　2.3.3 海底環境（着底漁具を用いる漁業）\n　　2.3.4 水質環境\n　　2.3.5 大気環境\n　\n　引用文献","subitem_description_language":"ja","subitem_description_type":"TableOfContents"},{"subitem_description":"Ver.1.0.0\n編纂：岸田 達, 玉井 文, 大関芳沖\n編纂責任者：大関芳沖","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"水産研究・教育機構","subitem_publisher_language":"ja"}]},"item_10002_radio_30":{"attribute_name":"item_10002_radio_30","attribute_value_mlt":[{"subitem_radio_item":"渡邉","subitem_radio_language":"ja"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_language":"ja","subitem_relation_name_text":"SH\"U\"Nプロジェクト評価結果"}],"subitem_relation_type":"isPartOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"SHUN_section2_36","subitem_relation_type_select":"Local"}}]},"item_10002_version_type_20":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Takeshige, Aigo","creatorNameLang":"en","creatorNameType":"Organizational"},{"creatorName":"竹茂, 愛吾","creatorNameLang":"ja","creatorNameType":"Organizational"},{"creatorName":"タケシゲ, アイゴ","creatorNameLang":"ja-Kana","creatorNameType":"Organizational"}],"familyNames":[{"familyName":"Takeshige","familyNameLang":"en"},{"familyName":"竹茂","familyNameLang":"ja"},{"familyName":"タケシゲ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Aigo","givenNameLang":"en"},{"givenName":"愛吾","givenNameLang":"ja"},{"givenName":"アイゴ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"989","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"00771370","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=00771370"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Yonezaki, Shiroh","creatorNameLang":"en","creatorNameType":"Organizational"},{"creatorName":"米崎, 史郎","creatorNameLang":"ja","creatorNameType":"Organizational"},{"creatorName":"ヨネザキ, シロウ","creatorNameLang":"ja-Kana","creatorNameType":"Organizational"}],"familyNames":[{"familyName":"Yonezaki","familyNameLang":"en"},{"familyName":"米崎","familyNameLang":"ja"},{"familyName":"ヨネザキ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Shiroh","givenNameLang":"en"},{"givenName":"史郎","givenNameLang":"ja"},{"givenName":"シロウ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"801","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"30463102","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=30463102"},{"nameIdentifier":"0000-0003-4454-3763","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0003-4454-3763"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Kishida, Tatsu","creatorNameLang":"en","creatorNameType":"Organizational"},{"creatorName":"岸田, 達","creatorNameLang":"ja","creatorNameType":"Organizational"},{"creatorName":"キシダ, タツ","creatorNameLang":"ja-Kana","creatorNameType":"Organizational"}],"familyNames":[{"familyName":"Kishida","familyNameLang":"en"},{"familyName":"岸田","familyNameLang":"ja"},{"familyName":"キシダ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Tatsu","givenNameLang":"en"},{"givenName":"達","givenNameLang":"ja"},{"givenName":"タツ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"476","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"10416034","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=10416034"}]},{"creatorNames":[{"creatorName":"Miyamoto, Mai","creatorNameLang":"en","creatorNameType":"Organizational"},{"creatorName":"宮本, 麻衣","creatorNameLang":"ja","creatorNameType":"Organizational"},{"creatorName":"ミヤモト, マイ","creatorNameLang":"ja-Kana","creatorNameType":"Organizational"}],"familyNames":[{"familyName":"Miyamoto","familyNameLang":"en"},{"familyName":"宮本","familyNameLang":"ja"},{"familyName":"ミヤモト","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Mai","givenNameLang":"en"},{"givenName":"麻衣","givenNameLang":"ja"},{"givenName":"マイ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3459","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2025-04-08"}],"filename":"カツオ中西部太平洋評価結果_2軸v100_20250327.pdf","filesize":[{"value":"1.9 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"url":"https://fra.repo.nii.ac.jp/record/2013764/files/カツオ中西部太平洋評価結果_2軸v100_20250327.pdf"},"version_id":"289727ac-e981-46a8-807c-44699de5b6d3"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"カツオ中西部太平洋　2. 海洋環境と生態系への配慮","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"カツオ中西部太平洋　2. 海洋環境と生態系への配慮","subitem_title_language":"ja"}]},"item_type_id":"10002","owner":"92","path":["1735006234112"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-03-12"},"publish_date":"2025-03-12","publish_status":"0","recid":"2013764","relation_version_is_last":true,"title":["カツオ中西部太平洋　2. 海洋環境と生態系への配慮"],"weko_creator_id":"92","weko_shared_id":-1},"updated":"2025-04-30T06:13:55.834470+00:00"}