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Except for crustacean remains\nand freshwater palynomorphs, the most dominant palynomorpha are dinoflagellate cysts (21,567 cysts/g at\nStation 8) followed by microforaminiferal linings( 4,224 linings/g at St. 5). Ellipsoidal cysts identical to those\nproduced by PSP causative Alexandrium tamarense/catenella were distributed throughout the bay (highest\nabundance of 3,610 cysts/g at St. 7). Cysts of ichthyo-toxic raphydophycean Chattonella were also observed\nthroughout the bay with the highest occurrence of 455 cysts/g at St. 8). Freshwater palynomorphs mainly\nconsisting of chlorophycean Staurastrum were extremely dominated at Sts. 7 and 8, near the mouth of the\nYodo River( 49,875 cells/g at St. 7). Its distribution appears to reflect the flowing direction of the East Coast\nResidual Current. 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大阪湾表層堆積物中の海産・淡水産パリノモルフ
https://doi.org/10.20643/00001290
https://doi.org/10.20643/00001290ec25ef57-dd01-4c56-b2b3-ecb7c0d02916
名前 / ファイル | ライセンス | アクション |
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大阪湾表層堆積物中の海産・淡水産パリノモルフ (12.2 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2018-04-03 | |||||
タイトル | ||||||
タイトル | 大阪湾表層堆積物中の海産・淡水産パリノモルフ | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Marine and freshwater palynomorphs preserved in surface sediments of Osaka Bay, Japan | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | acritarch | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Chattonella cyst | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | dinoflagellate cyst | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | microforaminiferal lining | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Osaka Bay | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | tintinnomorph | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | palynomorph | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.20643/00001290 | |||||
ID登録タイプ | JaLC | |||||
著者 |
松岡, 數充
× 松岡, 數充× 石井, 健一郎× MATSUOKA, Kazumi× ISHII, Ken’ichiro |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 大阪湾表層堆積物中に観察される花粉,シダ植物胞子,菌類以外の渦鞭毛藻シスト,チンチノモルフ,有孔虫ライニング,甲殻類の一部,アクリタークなどから構成される海産・淡水産パリノモルフを記載した.甲殻類遺骸や淡水産パリノモルフを除くと渦鞭毛藻シストが最も優占(Station8で21,567 cysts/g)し,有孔虫ライニングがそれに次いだ( St. 5で4,224 linings/g).麻痺性貝毒原因種 Alexandrium 属の楕円形シストはSt. 7で最高密度 3,610 cysts/g で出現して湾全域に分布していた.魚毒性ラフィド藻Chattonella シストもSt. 8で最高密度 455 cysts/gで出現し,湾全域に分布していた.淡水産パリノモルフは主に緑藻類Staurastrumで構成され,淀川河口付近のSt. 7 と St..8( St. 7 で49,875 cells/g) で極めて多産していた.この種の分布状況は東部沿岸残渣流の方向を反映しているようである.この様に海産・淡水産パリノモルフは環境復元にとって有効な遺骸であることが判明した. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Various marine and freshwater palynomorphs consisting of dinoflagellate cysts, tintinnomorphs, microforaminiferal linings, crustacean eggs and fragments, and acritarchs, as well as pollen and fern spores were found in surface sediments of Osaka Bay, Japan are briefly described. Except for crustacean remains and freshwater palynomorphs, the most dominant palynomorpha are dinoflagellate cysts (21,567 cysts/g at Station 8) followed by microforaminiferal linings( 4,224 linings/g at St. 5). Ellipsoidal cysts identical to those produced by PSP causative Alexandrium tamarense/catenella were distributed throughout the bay (highest abundance of 3,610 cysts/g at St. 7). Cysts of ichthyo-toxic raphydophycean Chattonella were also observed throughout the bay with the highest occurrence of 455 cysts/g at St. 8). Freshwater palynomorphs mainly consisting of chlorophycean Staurastrum were extremely dominated at Sts. 7 and 8, near the mouth of the Yodo River( 49,875 cells/g at St. 7). Its distribution appears to reflect the flowing direction of the East Coast Residual Current. Thus, marine and freshwater palynomorphs are useful tools for reconstructing environments. |
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書誌情報 |
大阪市立自然史博物館研究報告 en : Bulletin of the Osaka Museum of Natural History 巻 72, p. 1-17, 発行日 2018-03-31 |
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出版者 | ||||||
出版者 | 大阪市立自然史博物館 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0078-6675 |