{"created":"2024-04-08T04:47:16.707349+00:00","id":2001681,"links":{},"metadata":{"_buckets":{"deposit":"b61ea912-7690-4f25-a305-aba95ddc2d05"},"_deposit":{"created_by":10,"id":"2001681","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2001681"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02001681","sets":["12:14:1716950587014"]},"author_link":[],"control_number":"2001681","item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1993-03","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"12","bibliographicPageEnd":"20","bibliographicPageStart":"9","bibliographicVolumeNumber":"57","bibliographic_titles":[{"bibliographic_title":"北海道区水産研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of the Hokkaido National Fisheries Research Institute","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The annual reproductive cycle of female Zoarces elongatus, a viviparous teleost, can be divided into five periods on the basis of histological observations of the development of ovarian oocytes and embryos. 1) Early vitellogenic period (December to April) : Oocytes at the yolk vesicle stage begin yolk globule accumulation. The oocytes gradually grow. Pregnant fish seem to undergo parturition at the end of this period. 2) Late vitellogenic period (May to August) : Vitellogenic oocytes become transparent as a result of the fusion of yolk globules. Yolk accumulation continues and follicle diameter increase rapidly. Copulation seems to occur at the end of this period. Gonadosomatic index begins a gradual increase during this period. 3) Early gestation period (September to October) : Ovulated and fertilized eggs as well as early embryonic development and hatching are seen at this time in the ovarian cavity, indicating ovarian cavity gestation type. The average body length of hatched larvae is 29.1mm. Post-ovulatory follicles are not degenerated. Follicular epithelium contains numerous blood vessels and is connected to the fertilized eggs. 4) Mid-gestation period (November to December) : Hatched larvae in the ovarian cavity absorb their yolk-sac, becoming fry. The average body length of fry is 58.4mm. The gonadosomatic index increases rapidly. 5) Late gestation period (December to March or April) : The fry continue to grow (61.0mm body length on the average) in the ovarian cavity until parturition, suggesting that a maternal-fetal nutritive relationship exists in this fish. The gonadosomatic index reaches its maximum level (more than 30%). The next clutch of oocytes begins yolk accumulation during this period. Postovulatory follicles showing a bilaminal structure are still observed. Loose conective tissue is seen between post-ovulatory follicles and follicle epithelium, and eosinophilic fluid accumulates there. These observations suggest that post-ovulatory follicles and eosinophilic follicular fluid have a role in the maintenance of gestation.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"北海道区水産研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"Hokkaido National Fisheries Research Institute","subitem_publisher_language":"en"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"hnf_k_57_2","subitem_relation_type_select":"Local"}}]},"item_10002_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_language":"ja","subitem_relation_name_text":"日本農学文献記事索引(agriknowledge)"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://agriknowledge.affrc.go.jp/RN/2010501396","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN1015410X","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0513-2541","subitem_source_identifier_type":"PISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata 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Sachiko","creatorNameLang":"en"}],"familyNames":[{"familyName":"尾原","familyNameLang":"ja"},{"familyName":"オハラ","familyNameLang":"ja-Kana"},{"familyName":"Ohara","familyNameLang":"en"}],"givenNames":[{"givenName":"佐知子","givenNameLang":"ja"},{"givenName":"サチコ","givenNameLang":"ja-Kana"},{"givenName":"Sachiko","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"池内, 俊貴","creatorNameLang":"ja"},{"creatorName":"イケウチ, トシタカ","creatorNameLang":"ja-Kana"},{"creatorName":"Ikeuchi, Toshitaka","creatorNameLang":"en"}],"familyNames":[{"familyName":"池内","familyNameLang":"ja"},{"familyName":"イケウチ","familyNameLang":"ja-Kana"},{"familyName":"Ikeuchi","familyNameLang":"en"}],"givenNames":[{"givenName":"俊貴","givenNameLang":"ja"},{"givenName":"トシタカ","givenNameLang":"ja-Kana"},{"givenName":"Toshitaka","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"足立, 伸次","creatorNameLang":"ja"},{"creatorName":"アダチ, シンジ","creatorNameLang":"ja-Kana"},{"creatorName":"Adachi, Shinji","creatorNameLang":"en"}],"familyNames":[{"familyName":"足立","familyNameLang":"ja"},{"familyName":"アダチ","familyNameLang":"ja-Kana"},{"familyName":"Adachi","familyNameLang":"en"}],"givenNames":[{"givenName":"伸次","givenNameLang":"ja"},{"givenName":"シンジ","givenNameLang":"ja-Kana"},{"givenName":"Shinji","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"松原, 孝博","creatorNameLang":"ja"},{"creatorName":"マツバラ, タカヒロ","creatorNameLang":"ja-Kana"},{"creatorName":"Matsubara, Takahiro","creatorNameLang":"en"}],"familyNames":[{"familyName":"松原","familyNameLang":"ja"},{"familyName":"マツバラ","familyNameLang":"ja-Kana"},{"familyName":"Matsubara","familyNameLang":"en"}],"givenNames":[{"givenName":"孝博","givenNameLang":"ja"},{"givenName":"タカヒロ","givenNameLang":"ja-Kana"},{"givenName":"Takahiro","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"山内, 晧平","creatorNameLang":"ja"},{"creatorName":"ヤマウチ, コウヘイ","creatorNameLang":"ja-Kana"},{"creatorName":"Yamauchi, Kohei","creatorNameLang":"en"}],"familyNames":[{"familyName":"山内","familyNameLang":"ja"},{"familyName":"ヤマウチ","familyNameLang":"ja-Kana"},{"familyName":"Yamauchi","familyNameLang":"en"}],"givenNames":[{"givenName":"晧平","givenNameLang":"ja"},{"givenName":"コウヘイ","givenNameLang":"ja-Kana"},{"givenName":"Kohei","givenNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"胎生硬骨魚ナガガジ Zoarces elongatus 雌の生殖周期","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"胎生硬骨魚ナガガジ Zoarces elongatus 雌の生殖周期","subitem_title_language":"ja"},{"subitem_title":"The reproductive cycle of female Zoarces elongatus, a viviparous teleost","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716950587014"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-08"},"publish_date":"2024-04-08","publish_status":"0","recid":"2001681","relation_version_is_last":true,"title":["胎生硬骨魚ナガガジ Zoarces elongatus 雌の生殖周期"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-01-17T08:04:49.161811+00:00"}