{"created":"2024-04-12T04:57:30.130536+00:00","id":2002135,"links":{},"metadata":{"_buckets":{"deposit":"d4193baa-3b5e-44c8-ad8e-bbdded7f6bc8"},"_deposit":{"created_by":8,"id":"2002135","owner":"8","owners":[8],"pid":{"revision_id":0,"type":"depid","value":"2002135"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02002135","sets":["15"]},"author_link":["1004","1178","785","753","495","984"],"control_number":"2002135","item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2024-06","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"102062","bibliographicVolumeNumber":"36","bibliographic_titles":[{"bibliographic_title":"Aquaculture Reports","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In this study, we examined the effects of a long photoperiod on the reproduction of Pacific bluefin tuna (Thunnus orientalis) in a land-based tank. Three-year-old fish were shifted from a short (10.5 L:13.5D) to long (15 L:9D) photoperiod in December. The broodstocks exhibited gonadal development after this photoperiod change and spawned spontaneously the following March, approximately three months earlier than the normal spawning season. Although the results were based on data from a small sample size of fish, the study suggests that a long photoperiod induces the onset of gonadal development in Pacific bluefin tuna, thereby accelerating their spawning time.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.aqrep.2024.102062","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 養殖部門 シラスウナギ生産部 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