{"created":"2024-04-08T01:35:12.972650+00:00","id":2000207,"links":{},"metadata":{"_buckets":{"deposit":"81d99742-36d9-483b-b03b-3163a72c5bd8"},"_deposit":{"created_by":74,"id":"2000207","owner":"74","owners":[74],"pid":{"revision_id":0,"type":"depid","value":"2000207"},"status":"published"},"_oai":{"id":"oai:jircas.repo.nii.ac.jp:02000207","sets":["1704421711574:1705364365194"]},"author_link":[],"control_number":"2000207","item_30002_access_rights4":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_30002_bibliographic_information29":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2000-03-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"12","bibliographicPageStart":"1","bibliographicVolumeNumber":"8","bibliographic_titles":[{"bibliographic_title":"JIRCAS Journal","bibliographic_titleLang":"en"}]}]},"item_30002_creator2":{"attribute_name":"作成者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"SUYAMA, Satoshi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"TONNEK, Syarifuddin","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"AHMAD, Taufik","creatorNameLang":"en"}]}]},"item_30002_description9":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"The maturation process of the short mackerel, Rastrelliger brachysoma, was studied based on the seasonal changes in GSI and histological observation of the gonads. Specimens were collected from the sea off the east and west coasts of South Sulawesi, Indonesia, where the onset of the rainy season differs, during the period from March 1996 to July 1997. The short mackerel was a multiple spawner with asynchronous development of the oocytes; minimum size of the fish at maturation was about 140 mm (fork length). Gonad developmental stages were divided into 7 stages; i.e. immature, developing, fully-developed, gravid, running-ripe, regressing, and resting stages. The individuals which reached maturation were considered to repeat the process from the developing stages to the resting stages. However, spawning fish or immediately post-spawning fish occurred throughout the year, and clear seasonal changes were not observed either area.","subitem_description_language":"en","subitem_description_type":"Other"},{"subitem_description":"グルクマ属の1種Ratstrelli gebrachysomaの成熟特性を明らかにするため、1996年3月から1997年6月の間、インドネシア南スラベシ州の東海岸および西海岸から標本を採集し、月ごとのGSI（生殖腺体指数）の変化と、卵巣の発達を組織学的手法を用いて観察した。これらの観察に基づいて卵形成の特徴を明らかにした上で成熟度を設定し、両海域における産卵時期の比較を行った。本種の卵発達は非同期型を示したことから一産卵期に複数回産卵すると考えられた。また、産卵後の個体の卵巣には多数の退行卵が観察されたことから、産卵が終了した時点で卵巣中の発達途中の卵細胞は吸収され、次の産卵期には未熟な卵細胞が再び発達し産卵するものと考えられた。成熟した卵細胞を持つ個体は主に尾叉長140mm以上の個体に見られたことから、初回の産卵時の尾叉長は140mmであると考えられた。しかし、産卵中または産卵直後の個体は調査期間中に年間を通して採集されたことから、両海域において本種の明確な産卵期はなく、産卵は一年を通して行われていると考えられた。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_30002_file35":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available"}],"filename":"jircas_journal8-_1-12.pdf","filesize":[{"value":"832KB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"jircas_journal8-_1-12","objectType":"fulltext","url":"https://jircas.repo.nii.ac.jp/record/2000207/files/jircas_journal8-_1-12.pdf"},"version_id":"9293d733-70d6-4155-a457-631a6e612eae"}]},"item_30002_identifier_registration17":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.34556/0002000207","subitem_identifier_reg_type":"JaLC"}]},"item_30002_language12":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_30002_publisher10":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Japan International Research Center for Agricultural Sciences","subitem_publisher_language":"en"}]},"item_30002_resource_type13":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_30002_source_identifier22":{"attribute_name":"収録物識別子","attribute_value_mlt":[{"subitem_source_identifier":"13407686","subitem_source_identifier_type":"PISSN"},{"subitem_source_identifier":"AA11030483","subitem_source_identifier_type":"NCID"}]},"item_30002_subject8":{"attribute_name":"主題","attribute_value_mlt":[{"subitem_subject":"short mackerel","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"gonad development","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"oocyte","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"spawning season","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"rainy season","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_30002_title0":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Maturation Cycle of Short Mackerel,Rastrelliger brachysoma , in South Sulawesi, Indonesia","subitem_title_language":"en"},{"subitem_title":"南スラベシにおけるグルクマ属の1種Rastrelliger brachysoma の生殖周期","subitem_title_language":"ja"}]},"item_30002_version_type15":{"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_title":"Maturation Cycle of Short Mackerel,Rastrelliger brachysoma , in South Sulawesi, Indonesia","item_type_id":"40039","owner":"74","path":["1705364365194"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-08"},"publish_date":"2024-04-08","publish_status":"0","recid":"2000207","relation_version_is_last":true,"title":["Maturation Cycle of Short Mackerel,Rastrelliger brachysoma , in South Sulawesi, Indonesia"],"weko_creator_id":"74","weko_shared_id":-1},"updated":"2024-04-09T06:56:32.684001+00:00"}