Thin-layer Bloom of Diatoms Around the Mouth of the Aarakawa River in Tokyo Bay - 九大コレクション

＜紀要論文＞
Thin-layer Bloom of Diatoms Around the Mouth of the Aarakawa River in Tokyo Bay

作成者	作成者名 Okada, Tomonari 岡田, 知也所属機関所属機関名 National Institute for Land and Infrastructure Management 国土交通省国土技術政策総合研究所
	作成者名 Shikata, Tomoyuki 紫加田, 知幸所属機関所属機関名 Doctoral course, Department of Bioscience and Biotechnology, Kyushu University 九州大学生物資源環境科学府博士課程
	著者識別子 K001548 作成者名 Honjo, Tsuneo 本城, 凡夫所属機関所属機関名 Department of Bioscience and Biotechnology Faculty of Agriculture Kyushu University 九州大学大学院農学研究院生物資源環境科学府
本文言語	英語
出版者	Faculty of Agriculture, Kyushu University
出版者	九州大学大学院農学研究院
発行日	2008-02-28
収録物名	九州大学大学院農学研究院紀要
巻	53
号	1
開始ページ	73
終了ページ	80
出版タイプ	Version of Record
アクセス権	open access
Crossref DOI	https://doi.org/10.5109/10074
関連情報	Journal of the Faculty of Agriculture, Kyushu University \|\| 53(1) \|\| p73-80
	九州大学大学院農学研究院紀要 \|\| 53(1) \|\| p73-80
	http://www.agr.kyushu-u.ac.jp/index.html

ファイル	ファイルタイプ	サイズ	閲覧回数	説明
p073	pdf	1.51 MB	440

PISSN	0023-6152
NCID	AA00697606
レコードID	10074
査読有無	査読無
主題	Chemistry
主題	化学
ISSN	0023-6152
NCID	AA00697606
注記	A thin-layer diatom bloom was examined during four surveys in July and August 2005 around the mouth of the Arakawa River, Japan. During two surveys, a thin layer of concentrated chlorophyll a (thickness 1-3m), was found under a layer of salinity 10-15 over 5km offshore. The dominant taxa in the thin layer were Skeletonema costatum, Thalassiosira binata, and Cryptomonadales. When the thin layer was found, an estuarine circulation pattern occurred around the mouth of the river. The direction of flow was seaward in the upper layer and landward in the lower layer. The seaward flux of chlorophyll a in the upper layer was nearly the same as the landward flux of chlorophyll a in the lower layer. In addition, a surface layer was found over 5km offshore. The surface layer (first upper layer) was formed above the halocline, which was at about 0.5-m depth. In the first upper layer, salinity was low, chlorophyll a concentration was low, and nutrient concentrations were high. Therefore, the thin layer of concentrated chlorophyll a was formed and maintained by phytoplankton remaining around the mouth of the river in response to the estuarine circulation pattern and the supply of nutrients from the first upper layer.
登録日	2009.04.22
更新日	2022.11.11