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タイトルヨミ
カゴシマケン カミコシキジマ ニ ブンプスル エンガンセイ キスイ コショウ グン ノ コスイ カンキョウ
日本語以外のタイトル
Water Environment of the Coastal Brabkish Lakes (Namako-ike, Kai-ike, Kazaki-ike), Kamikoshiki Island, Kagoshima Prefecture
ファイル
言語
日本語
著者
久保 尚子
沢井 祐紀
鹿島 薫
内容記述(抄録等)
The coastal brackish lakes, Lake Namako-ike, Lake Kai-ike and Lake Kazaki-ike lie to the north-east shore of Kamikoshiki Island in Kagoshima Prefecture of Japan. They are separated from the sea by along gravel bar called as Nagameno-hama Quality of water(salinity, electric conductivity, pH, Cl^-, dissolved oxygen, H_2S), change of water levels and distribution of diatom assemblage and analysis of total organic carbon(TOC), total nitrogen(TN) and total sulfur(TS) contents in the surface sediments were carried out, for clearing water environment of the three lakes.
The three lakes have different salinity. At Lake Namako-ike, the salinity of surface water was 30~34%o. At Lake Kai-ike, 20~29%o. At Lake Kazaki-ike, 5~9%o. Lake Kai-ike is stratified, the layer of high salinity is covered by the layer of low salinity, and the deeper layer contained a significant amount of H_2S. It has a bacterial plate in the upper H_2S layer. Analysis of TOC, TN and TS content in the surface sediments and distribution of diatom assemblage are corresponded to the difference of environment in the three lakes.
Quality of water has been kept up at least 13 years in comparison with Matuyama.(1985) and Yamamuro.(1978) Inflow and outflow of seawater has been kept up at least 50 years in comparison with Aramaki et al.(1976) and Yasui and Shinoda.(1938).
主題
Kamikoshiki Island
brackish lake
salinity
stratification
TOC・TN・TS contents
掲載誌名
Laguna : 汽水域研究
6
開始ページ
261
終了ページ
271
ISSN
21852995
発行日
1999-03
NCID
AN10439529
出版者
島根大学汽水域研究センター
資料タイプ
紀要論文
ファイル形式
PDF
著者版/出版社版
出版社版
部局
研究・学術情報本部 エスチュアリー研究センター
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