{"created":"2024-04-08T04:46:11.802985+00:00","id":2001643,"links":{},"metadata":{"_buckets":{"deposit":"7bbc101f-2dc3-4bc2-b5e2-37553921dbc3"},"_deposit":{"created_by":10,"id":"2001643","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2001643"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02001643","sets":["12:14:1716950587014"]},"author_link":[],"control_number":"2001643","item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-01","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"80","bibliographicPageEnd":"134","bibliographicPageStart":"55","bibliographicVolumeNumber":"65","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":"Seasonal and interannual variability in the temperature, concentrations of chlorophyll a and nutrients at the surface, and netplankton biomass was described in the A-line, which located in the Oyashio region, the western subarctic Pacific, between 1995 and 1999. Seasonal change of those variables in 1995-1999 was generally similar to that in 1990-1994 reported in previous study. Seasonal changes in the northernmost station that were located on continental shelf and the southernmost three stations that were influenced by the modified subtropical water were different from those in other stations. Interannual variations of oceanographic variables from 1990 to 1999 were examined. Spring bloom initiated earlier and their magnitude increased after 1996, corresponding the temporal variation of nutrients from March to May. Mesoplankton biomass in the period between May and June-July showed a trend of increase since 1991, although these interannual variations were not related other environmental variables such as chlorophyll a concentration and temperature. Further analysis should be required to examine mechanisms in interannual variability observed in the Oyashio region.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"太平洋西部亜寒帯海域親潮水域上の観測定線A-lineにおける1995年から1999年にかけての表面水湿、表面クロロフィルa濃度、表面栄養塩濃度、及びネットプランクトン生物量の季節変動、経年変動を記述した。1995-1999年の環境因子の季節変動はこれまでの研究で報告された1990-1994年のものと全般的に同じ傾向を示した。大陸棚上にある最も北部の観測点及び混合水の影響を受ける南部の観測点の季節変動は他の観測点のものとは異なっていた。1990年から1999年の環境因子の経年変動を調査した。1996年以降、春季ブルームがより早く始まり、その規模も大きくなった。これは3月から5月にかけての栄養塩類の時間変動と一致するものであった。5月から6-7月にかけての大型プランクトンの生物量は1991年以降増加する傾向が示されたが、これらの経年変動はクロロフィルa濃度や水温といった環境因子とは相関しなかった。親潮水域において観測された経年変動のメカニズムを明らかにする為には更なる解析が必要であろう。","subitem_description_language":"ja","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_65_6","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/2010630404","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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