{"created":"2024-04-25T05:07:24.651867+00:00","id":2003298,"links":{},"metadata":{"_buckets":{"deposit":"464bb21c-b2a0-431a-aa8e-53a0d26f86fb"},"_deposit":{"created_by":10,"id":"2003298","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2003298"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02003298","sets":["12:14:1716951205920"]},"author_link":["1838"],"control_number":"2003298","item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1982-03","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"11","bibliographicPageEnd":"81","bibliographicPageStart":"71","bibliographicVolumeNumber":"14","bibliographic_titles":[{"bibliographic_title":"南西海区水産研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of the Nansei Regional Fisheries Research Laboratory","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The present study covers three ecological aspects, growth, reproductive cycle, and changes of habitat of Japanese black turban snail, Omphalius pfeifferi. The materials were obtained at Kominato, Lat. 35° 07' N., Long. 140° 11' E., in 1977 and 1978. The relationship between the size and age of snails was estimated by two methods, inclusive of shell height frequency analysis and examination of tagged snails. Both methods coincidently showed that snails grow to about 10 mm one year after birth. But the height at two years after birth is estimated 20 mm by frequency analysis and 18 mm by tagging. The discrepancy of 2 mm between the estimated averages may be attributed either to the difficulty of frequency analysis due to reduction of the increment or to the underestimate of height by the tagging method based on the limited size range of recaptured snails. Seasonal change of the gonad index and ovum diameter frequency indicate that snails spawn from early summer to autumn. with two peaks in a spawning season. The minimum sizeat which snails start to sexually mature was 8 mm in shell height. Almost all individuals  are capable of spawning at 14 mm. Observation by quadrat method reveals expansion of the habitat as snails grow larger. Small individuals, less than 8 mm in shell height, inhabit the bottom of shingles. Large individuals extended the habitat to the surface of boulders and stacks. The habitat changes at the time when sexual maturation takes place at shell heights of 8-14 mm.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"本研究は千葉県小湊沿岸に生息する海産腹足類バテイラ Omphalius pfeifferi (PHILIPPI)の成長,産卵周期,すみ場所の変化といった,最も基本的な生態学的特性を明らかにする目的で行なわれた。1. 6ヵ月毎3回の枠法による採集標本を用いて、CASSIE(1954)の方法により年級群解析を行うと同時に,標識放流による1年後の成長結果を BERTALANFFY の成長式にあてはめて成長解析を行った。両方法の検討から,1年目には殻高10mm前後,2年目には殻高20mm(18~22mm)前後になるものと判断した。しかし2年目以降の殻高と年令との関係については,今後も検討を要する。2. 成熟度指数の問年変化および卵巣中の卵径分布の周年変化から,バテイラの産卵期は初夏から秋にかけてであると推定される。また,産卵期内において産卵の盛期が2度存在する可能性が示された。3. 生殖腺の外観から,殻高別の雌雄判別可能な個体の割合の変化を調査した結果,殻高8~13加にかけて急激に雌雄判別可能な個体の割合が増加し,14mm以上の個体はすべて雌雄判別可能であった。4. 転石の大きさと,バテイラの分布との関係について調査を行った結果,長径1m未満の転石よりなる地域に偏って分布していた小型個体は,4月から7月にかけて殻高8~12mmとなる頃,長径1m以上の転石表面や岩礁露頭へ生活域を拡大するものと考えられる。前述の結果から,それらは性的成熟の過渡期にある満1令の個体であると推定される。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"南西海区水産研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"Nansei Regional Fisheries Research Laboratory","subitem_publisher_language":"en"}]},"item_10002_radio_30":{"attribute_name":"item_10002_radio_30","attribute_value_mlt":[{"subitem_radio_item":"吉田","subitem_radio_language":"ja"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"nnf_k_14_71","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/2010252950","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"item_10002_source_id_11","attribute_value_mlt":[{"subitem_source_identifier":"AN00181988","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"item_10002_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"0388-841X","subitem_source_identifier_type":"PISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Horikawa, Hiroshi","creatorNameLang":"en","creatorNameType":"Personal"},{"creatorName":"堀川, 博史","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"ホリカワ, ヒロシ","creatorNameLang":"ja-Kana","creatorNameType":"Personal"}],"familyNames":[{"familyName":"Horikawa","familyNameLang":"en"},{"familyName":"堀川","familyNameLang":"ja"},{"familyName":"ホリカワ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Hiroshi","givenNameLang":"en"},{"givenName":"博史","givenNameLang":"ja"},{"givenName":"ヒロシ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1838","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"20371974","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=20371974"}]},{"creatorNames":[{"creatorName":"Yamakawa, Hiroshi","creatorNameLang":"en","creatorNameType":"Personal"},{"creatorName":"山川, 紘","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"ヤマカワ, ヒロシ","creatorNameLang":"ja-Kana","creatorNameType":"Personal"}],"familyNames":[{"familyName":"Yamakawa","familyNameLang":"en"},{"familyName":"山川","familyNameLang":"ja"},{"familyName":"ヤカマワ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Hiroshi","givenNameLang":"en"},{"givenName":"紘","givenNameLang":"ja"},{"givenName":"ヒロシ","givenNameLang":"ja-Kana"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"バテイラOmphalius pfeifferi(PHILIPPI)の生態学的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"バテイラOmphalius pfeifferi(PHILIPPI)の生態学的研究","subitem_title_language":"ja"},{"subitem_title":"Ecological Study of Omphalius pfeifferi PHILIPPI (Gastropoda : Prosobranchia)","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716951205920"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-25"},"publish_date":"2024-04-25","publish_status":"0","recid":"2003298","relation_version_is_last":true,"title":["バテイラOmphalius pfeifferi(PHILIPPI)の生態学的研究"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-04-21T05:04:32.103438+00:00"}