{"created":"2024-05-23T02:47:37.285669+00:00","id":2005243,"links":{},"metadata":{"_buckets":{"deposit":"2febae7c-00a0-4d72-9280-8402342a7b4d"},"_deposit":{"created_by":10,"id":"2005243","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2005243"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02005243","sets":["12:14:1716951104833"]},"author_link":["3332"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1989-03-28","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"16","bibliographicPageEnd":"16","bibliographicPageStart":"1","bibliographicVolumeNumber":"127","bibliographic_titles":[{"bibliographic_title":"東海区水産研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of Tokai Regional Fisheries Research Laboratory","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In respect to the sexual dimorphism in growth of fish, computer simulation of individual growth variation was made in terms of coefficient of variation (CV) and skewness (sk) of frequency distribution. Normal distributions of initial body length, l0 (consisted of each 500 X-l0 and Y-l0 monosexual distribution with equal values of mean, CV and sk), specific growth rate in exponential growth or growth coefficient in asymptotic growth, λ (each 500 λx and λy monosexual distribution) and asymptotic value, l∞ (each 500 X-l∞, Y-l∞ and Z-l∞ monosexual distribution) were supposed. In exponential growth accompanied by the changes of distribution of body length from normal to lognormal, both CV and sk of all mono- and bisexual distributions continuously increased in N-N correspondent type and N-N type of the combination of l0 with λ, but slight temporary decrease of sk in one of the monosexual distributions was observed occasionally in N-N complex type. In any type of the combination of l0 with λ the values of CV and sk of the bisexual distribution were always greater than those of two monosexual distributions. Except for making logarithmic transformation of the body length, bimodal bisexual distribution of the body length were observed only in the initial period of growth. In asymptotic growth (Bertalanffy with X-l∞. and Y-l∞, and Logistic with Y-l∞ and Z-l∞) CV of both mono- and bisexual distributions gradually converged on CV of given asymptotic value after initial increase in all the cases. In Bertalanffy's growth, sk of the bisexual distribution increased in positive value at the beginning, contrary to the marked increase in negative value in the monosexual distributions from the beginning, then gradually converged on sk of given asymptotic values. In Logistic's growth sk of the monosexual distributions markedly increased in negative value than those of the bisexual distribution both after certain increase in positive value in the early period. Such changes were not so remarkable in N-N-N complex type as in the other two types. In both asymptotic growth CV of the bisexual distribution was always greater than those of the monosexual distributions, and sk of the bisexual distribution was greater in positive value and smaller in negative value than those of the monosexual distributions all the time. In this respect, the present simulation of growth variation by asymptotic equations has a certain resemblance to the actual growth variation of the fish as Sarotherodon nilo tica and S. zillii, in which great sexual dimorphism in growth exists.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"魚類の成長の性差を考慮して,体長分布の変動係数(CV)と歪度(sk)によって表現される成長の個体変異のシミュレーションを行った。そのため初体長l0の正規分布(平均値,CVおよび skが等しい個体数各500のXーl0およびYーl0の2つ単性分布よりなる),指数式の比成長速度または漸近式の成長係数λの正規分布(個数各500のλxおよびλyの単性分布)および上限値l∞の正規分布(個体数各500のX-l∞, Y-l∞およびZ-l∞の単性分布)を想定した。体長分布が正規型から対数正規型に変化する指数的成長で, l0とλの組合せがN-N correspondent 型とN-N型では単性および両性分布の CVと skがともに連続的に増加した。N-N complex型では単性分布の片方でskが僅かに減少することがあった。L0とλのすべての組合せにおいて両性分布の CVとskの値は2つの単性分布の値よりも常に大きかった。両性分布における2頂型の体長分布は成長のごく初期にしかみられなかったが,対数変換した値による体長分布では後期にも2頂性がみられた。Bertalanffy 式(l∞はX-l∞とY-l∞)とLogistic式(l∞はY-l∞とZ-l∞)による漸近的成長では, l0(X-l0とY-l0), λ(λxとλy)およびl∞ (X-l∞とY-l∞または Y-l∞とZーl∞)のすべての組合せにおいて単性および両性分布のCVの値は初期成長における増加後あらかじめ設定された上限値の分布のCVに緩やかに収束した。Bertalanffy式による成長では単性分布の skの値が最初から負の領域で増加したのに反して両性分布の sk の侦は最初に正の領域で増加し,ついであらかじめ設定された上限値の分布の sk に緩やかに収束した。Logistic 式 による成長では初め単性および両性分布ともskが正の領域で増加したが,その後単性分布の sk は両性分布の skに比べて負の領域で著しく増加した。2つの漸近式による成長において両性分布のCVが常に単性分布よりも大きく,両性分布の skが単性分布に比べて常に正の領域で大きく,負の領域で小さい。このことは,漸近式による成長の個体変異のシミュレーションが,2種のティラピア(Sarotherodon nilotica と S. zillii)のように成長に大きな性差がある魚類の実際の成長変異にある程度近似することを示している。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東海区水産研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"Tokai Regional Fisheries Research Laboratory","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":"tokai_k_127_1","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/2010422564","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":"AN00156834","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0040-8859","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":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Teikyo University","affiliationNameLang":"en"},{"affiliationName":"帝京大学","affiliationNameLang":"ja"},{"affiliationName":"テイキョウダイガク","affiliationNameLang":"ja-Kana"}]}],"creatorNames":[{"creatorName":"Yamagishi, Hiroshi","creatorNameLang":"en"},{"creatorName":"山岸, 宏","creatorNameLang":"ja"},{"creatorName":"ヤマギシ, ヒロシ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"山岸","familyNameLang":"ja"},{"familyName":"ヤマギシ","familyNameLang":"ja-Kana"},{"familyName":"Yamagishi","familyNameLang":"en"}],"givenNames":[{"givenName":"宏","givenNameLang":"ja"},{"givenName":"ヒロシ","givenNameLang":"ja-Kana"},{"givenName":"Hiroshi","givenNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Tokai Regional Fisheries Research Laboratory","affiliationNameLang":"en"},{"affiliationName":"東海区水産研究所","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Ishioka, Kiyohide","creatorNameLang":"en","creatorNameType":"Organizational"},{"creatorName":"石岡, 清英","creatorNameLang":"ja"},{"creatorName":"イシオカ, キヨヒデ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Ishioka","familyNameLang":"en"},{"familyName":"石岡","familyNameLang":"ja"},{"familyName":"イシオカ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Kiyohide","givenNameLang":"en"},{"givenName":"清英","givenNameLang":"ja"},{"givenName":"キヨヒデ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3332","nameIdentifierScheme":"WEKO"}]}]},"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":"成長の性差のある魚類の成長における個体変異のシミュレーション","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"成長の性差のある魚類の成長における個体変異のシミュレーション","subitem_title_language":"ja"},{"subitem_title":"Simulation Study on the Growth Variation of Fish with Special Reference to the Sexual Dimorphism in Growth","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716951104833"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-05-22"},"publish_date":"2024-05-22","publish_status":"0","recid":"2005243","relation_version_is_last":true,"title":["成長の性差のある魚類の成長における個体変異のシミュレーション"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2026-01-19T08:16:22.406389+00:00"}