{"created":"2024-07-18T08:08:41.403184+00:00","id":2010268,"links":{},"metadata":{"_buckets":{"deposit":"bf8678e5-62c6-4446-af46-24b9960b51cc"},"_deposit":{"created_by":10,"id":"2010268","owner":"92","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2010268"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02010268","sets":["15"]},"author_link":["809","1124","842","391","1129"],"control_number":"2010268","item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2023-12-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicNumberOfPages":"10","bibliographicPageEnd":"538","bibliographicPageStart":"529","bibliographicVolumeNumber":"31","bibliographic_titles":[{"bibliographic_title":"Journal of Marine Science and Technology","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In recent years, chub mackerel (Scomber japonicus) and spotted mackerel (Scomber australasicus) have started migrating to the coastal areas off Iwate Prefecture earlier than they did previously, resulting in a geographic overlap between hatchery-bred juvenile chum salmon (Oncorhynchus keta) released at sea and the occurrence of predatory mackerel. To clarify whether the mackerels prey on the juvenile chum salmon, we captured adult mackerels by angling during the period when these species overlap in Miyako Bay, Iwate Prefecture. After capture, the stomach contents of the mackerel were examined using a combination of visual examinations and DNA metabarcoding analysis. As a result, chum salmon were identified in the stomachs of 4 of 97 chub mackerel (May 19), 5 of 30 chub mackerel, and 1 of 7 spotted mackerel (May 26), providing the first evidence of chum salmon predation by mackerels. When the fork length of chum salmon prey was inferred based on otolith measurements, the results showed that the prey items ranged in size from 54.3 mm to 86.9 mm. These findings indicate that the body-size range of the chum salmon that were targeted by mackerels spans that of hatchery-released chum salmon.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"National Taiwan Ocean University","subitem_publisher_language":"en"},{"subitem_publisher":"国立台湾海洋大学","subitem_publisher_language":"ja"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.51400/2709-6998.2722","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_language":"ja","subitem_relation_name_text":"水産技術研究所 環境・応用部門 沿岸生態システム部"}],"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"23342242","subitem_relation_type_select":"Local"}}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_language":"en","subitem_relation_name_text":"National Taiwan Ocean 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Kei","creatorNameLang":"en"},{"creatorName":"佐々木, 系","creatorNameLang":"ja"},{"creatorName":"ササキ, ケイ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Sasaki","familyNameLang":"en"},{"familyName":"佐々木","familyNameLang":"ja"},{"familyName":"ササキ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Kei","givenNameLang":"en"},{"givenName":"系","givenNameLang":"ja"},{"givenName":"ケイ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1129","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"80790625","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=80790625"},{"nameIdentifier":"0000-0001-6952-5866","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0001-6952-5866"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Yatsuya, Miwa","creatorNameLang":"en"},{"creatorName":"八谷, 三和","creatorNameLang":"ja"},{"creatorName":"ヤツヤ, ミワ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Yatsuya","familyNameLang":"en"},{"familyName":"八谷","familyNameLang":"ja"},{"familyName":"ヤツヤ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Miwa","givenNameLang":"en"},{"givenName":"三和","givenNameLang":"ja"},{"givenName":"ミワ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"809","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"50592721","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=50592721"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Shimizu, Daisuke","creatorNameLang":"en"},{"creatorName":"清水, 大輔","creatorNameLang":"ja"},{"creatorName":"シミズ, 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ダイスケ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Kojima","familyNameLang":"en"},{"familyName":"小島","familyNameLang":"ja"},{"familyName":"オジマ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Daisuke","givenNameLang":"en"},{"givenName":"大輔","givenNameLang":"ja"},{"givenName":"ダイスケ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"391","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"00629660","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=00629660"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Komatsu, Shinji","creatorNameLang":"en"},{"creatorName":"小松, 信治","creatorNameLang":"ja"},{"creatorName":"コマツ, シンジ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Komatsu","familyNameLang":"en"},{"familyName":"小松","familyNameLang":"ja"},{"familyName":"コマツ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Shinji","givenNameLang":"en"},{"givenName":"信治","givenNameLang":"ja"},{"givenName":"シンジ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1124","nameIdentifierScheme":"WEKO"}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Diet analysis; DNA metabarcoding; Ocean warming; Otolith","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Occurrence of Predation of Juvenile Chum Salmon (Oncorhynchus keta) by Chub Mackerel (Scomber japonicus) and Spotted Mackerel (Scomber australasicus) in Miyako Bay, Iwate Prefecture, Japan","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Occurrence of Predation of Juvenile Chum Salmon (Oncorhynchus keta) by Chub Mackerel (Scomber japonicus) and Spotted Mackerel (Scomber australasicus) in Miyako Bay, Iwate Prefecture, Japan","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"10","path":["15"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-07-18"},"publish_date":"2024-07-18","publish_status":"0","recid":"2010268","relation_version_is_last":true,"title":["Occurrence of Predation of Juvenile Chum Salmon (Oncorhynchus keta) by Chub Mackerel (Scomber japonicus) and Spotted Mackerel (Scomber australasicus) in Miyako Bay, Iwate Prefecture, Japan"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-05-07T01:38:42.549834+00:00"}