Laguna : 汽水域研究

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Laguna : 汽水域研究 14
2007-12 発行

宍道湖で採取された柱状試料S1 より産出する底生有孔虫化石群

Fossil benthic foraminifera from sediment core S1 of Lake Shinji, western Japan
高田 裕行
山田 和芳
香月 興太
宮本 康
中山 大介
Coops Hugo
ファイル
内容記述(抄録等)
Fossil benthic foraminifera from a sediment core taken from central Lake Shinji, western Japan, were investigated as an indicator of paleoenvironmental change in the Shinjiko-Nakaumi lake system during the 20th century. A transition from dominance of Haplophragmoides canariensis to that of Ammonia beccarii forma 1 occurred in the middle 20th century. This faunal association and its transition are similar to those observed in previous studies of Lake Shinji and the Ohashi River. This faunal transition might be affected by not only environmental change in Lake Shinji but also that in the Ohashi River.