{"created":"2023-06-19T07:30:38.489662+00:00","id":600,"links":{},"metadata":{"_buckets":{"deposit":"e5b86390-adb6-4d34-87c7-54aff0e7a573"},"_deposit":{"created_by":3,"id":"600","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"600"},"status":"published"},"_oai":{"id":"oai:nodai.repo.nii.ac.jp:00000600","sets":["47:48:132:133"]},"author_link":["3566","3563","3570","3571","3560","3562","3567","3561","3565","3558","3569","3564","3559","3568"],"item_1_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-06-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"30","bibliographicPageStart":"17","bibliographicVolumeNumber":"61","bibliographic_titles":[{}]}]},"item_1_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"統合モデルを用いた資源解析における最重要課題の一つとして，各尤度コンポーネント（資源量指数，サイズ組成データ等）の重みづけが解析結果に直接的に影響することが挙げられる。2012年に行われた太平洋クロマグロの資源評価では，この課題に対処するべく慎重な議論が交わされたが，主要な漁業である日本海まき網のサイズ組成データと他漁業の資源量指数の間で尤度コンポーネントの最適値に矛盾が生じ，妥当な解決策には至らなかった。そこで本研究では体長組成データの妥当な重みづけ初期値を決定する手法について，有効サンプル数とその信頼範囲を用いて決定する方法のパフォーマンスを検討した。初めに，体長組成データそのものの精度を評価するため，クラスターサンプリングを考慮した有効サンプル数を推定した。次に，最適な重みづけ手法を探るためシミュレーションを行い，各手法における尤度への影響を調べた。その結果，本研究の手法により日本海のまき網漁業のサイズ組成データと他漁業の資源量指数間に見られる矛盾は軽減され，尤度も改善された一方で，過去の資源評価と本研究における親魚量推定値の差は大きくはないことが明らかになった。しかし，世界的に注目が集まる本種の場合，僅かな差であっても資源管理に大きな影響を及ぼすと考えられる。また，重みづけ値をどのように決定するかという問題はあらゆる魚種の資源評価に共通するものであり，様々な漁業におけるデータの重みづけ初期値について考察する。","subitem_description_type":"Other"}]},"item_1_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"In stock analysis using integrated age-structured models, weighting factors of each likelihood component (e.g., for abundance indices and size composition data) directly affect the estimation of the model. In a past stock assessment of Pacific bluefin tuna (PBF) conducted in 2012, conflicts were recognized between the length composition dataset of a purse seine fishery operating in the Sea of Japan (PS-SoJ) and the abundance indices derived from other fisheries. After careful consideration, the initial weighting factor used in iterative reweighting method for the length composition dataset of PS-SoJ was reduced. In this paper, we provide a further analysis of procedure for determining the initial weighting factor of the likelihood component for the length composition dataset of PS-SoJ used in the stock assessment model of PBF. We tested five scenarios involving alternative initial weighting factors. Firstly, we estimated an effective sample size as an initial weighting factor considering inherent accuracy and precision of the length composition dataset in the context of cluster sampling. Next, we illustrated the partial likelihood of estimated key parameter (i.e. R0) as indicator of model fit for the tested scenarios to suggest optimal methods. In the results, the model fit was improved in a scenario where the point estimate of the effective sample size except for highly uncertain years was used. The differences between the statistical point estimates of stock dynamics in each scenario would have significant effect on management considering PBF’s situation. In conclusion, we discussed appropriate methods of setting initial weighting factors for a variety of data conditions.","subitem_description_type":"Other"}]},"item_1_description_13":{"attribute_name":"レポート・講演番号","attribute_value_mlt":[{"subitem_description":"E","subitem_description_type":"Other"}]},"item_1_description_15":{"attribute_name":"表示順","attribute_value_mlt":[{"subitem_description":"3","subitem_description_type":"Other"}]},"item_1_description_8":{"attribute_name":"記事種別(日)","attribute_value_mlt":[{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_1_description_9":{"attribute_name":"記事種別(英)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_1_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00164184","subitem_source_identifier_type":"NCID"}]},"item_1_text_6":{"attribute_name":"著者所属(日)","attribute_value_mlt":[{"subitem_text_value":"東京農業大学生物産業学研究科生物産業学専攻"},{"subitem_text_value":"東京農業大学生物産業学部アクアバイオ学科"},{"subitem_text_value":"鳥取県水産試験場"},{"subitem_text_value":"鳥取県水産課"},{"subitem_text_value":"鳥取県水産課"},{"subitem_text_value":"水産総合研究センター国際水産資源研究所"},{"subitem_text_value":"水産総合研究センター国際水産資源研究所"}]},"item_1_text_7":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of Bioindustry, Graduate School of Bioindustry, Tokyo University of Agriculture"},{"subitem_text_language":"en","subitem_text_value":"Department of Aquatic Bioscience, Faculty of Bioindustry, Tokyo University of Agriculture"},{"subitem_text_language":"en","subitem_text_value":"Tottori Prefectural Fisheries Experimental Station"},{"subitem_text_language":"en","subitem_text_value":"Tottori Prefectural Fisheries Division"},{"subitem_text_language":"en","subitem_text_value":"Tottori Prefectural Fisheries Division"},{"subitem_text_language":"en","subitem_text_value":"National Research Institute of Far Seas Fisheries"},{"subitem_text_language":"en","subitem_text_value":"National Research Institute of Far Seas Fisheries"}]},"item_1_title_3":{"attribute_name":"論文名よみ","attribute_value_mlt":[{"subitem_title":"トウゴウ　シゲン　ヒョウカ　モデル　ニ　モチイル　タイチョウ　ソセイ　データ　ノ　オモミヅケ　ショキチ　ヒョウカ"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"芝野, あゆみ"},{"creatorName":"シバノ, アユミ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3558","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"金岩, 稔"},{"creatorName":"カナイワ, ミノル","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3559","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"石原, 幸雄"},{"creatorName":"イシハラ, ユキオ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3560","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"氏, 良介"},{"creatorName":"ウジ, リョウスケ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3561","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"志村, 健"},{"creatorName":"シムラ, ツヨシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3562","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"竹内, 幸夫"},{"creatorName":"タケウチ, ユキオ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3563","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"余川, 浩太郎"},{"creatorName":"ヨカワ, コウタロウ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3564","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shibano, Ayumi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3565","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kanaiwa, Minoru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3566","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishihara, Yukio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3567","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Uji, Ryosuke","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3568","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shimura, Tsuyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3569","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Takeuchi, Yukio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3570","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yokawa, Kotaro","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"3571","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-07-08"}],"displaytype":"detail","filename":"61_17.pdf","filesize":[{"value":"1.0 MB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"61_17","url":"https://nodai.repo.nii.ac.jp/record/600/files/61_17.pdf"},"version_id":"ff329367-db3e-4975-8893-89dfd44cb972"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"資源評価","subitem_subject_scheme":"Other"},{"subitem_subject":"重みづけ値","subitem_subject_scheme":"Other"},{"subitem_subject":"有効サンプル数","subitem_subject_scheme":"Other"},{"subitem_subject":"体長組成","subitem_subject_scheme":"Other"},{"subitem_subject":"太平洋クロマグロ","subitem_subject_scheme":"Other"},{"subitem_subject":"stock assessment","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"weighting factor","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"effective sample size","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"length composition","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Pacific bluefin tuna","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"統合資源評価モデルに用いる体長組成データの重みづけ初期値評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"統合資源評価モデルに用いる体長組成データの重みづけ初期値評価"},{"subitem_title":"An Evaluation of Initial Weighting Factors for Length Composition Data Used in Integrated Stock Assessment Models","subitem_title_language":"en"}]},"item_type_id":"1","owner":"3","path":["133"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-07-08"},"publish_date":"2016-07-08","publish_status":"0","recid":"600","relation_version_is_last":true,"title":["統合資源評価モデルに用いる体長組成データの重みづけ初期値評価"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-19T08:01:27.838833+00:00"}