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Title Transcription
シンジコ ニ オケル テイセイ ユウコウチュウ グンシュウ
Title Alternative
Benthic foraminifbral assemlage in the Lake Shinji
File
language
jpn
Author
Seto, Koji Interdisciplinary Faculty of Science and Engineering, Department of Geoscience, Shimane University
Masaki, Osamu Sumika Chemical Analysis Service
Tanaka, Kunimasa Aratani Civil Engineerind Consultans Co.,Ltd.)
Takayasu, Katsumi Research Center for Coastal Lagoon Environments, Shimane University
Description
Based on a result of the assemblage analysis of benthic foraminifera in Lake Shinji,2 Assemblages of 7 Subassemblages were recognized.The foraminifera assemblages are controlled by the distribution of water mass in Lake Shinji.Miliammina Assemblage is distributed under the influence of Shinji Lake Surface Water.Ammonia Assemblage is distributed under the influence of intermediate saline water mass included Shinji Lake Bottom Water.Poor or no Foraminifera Facies are distributed in < 3 m water depth in the Shinji Lake Surface Water and in area under the influence of fresh water in Hii River.The distribution of foraminifera assemblage is varying by the change of water quality(salinity,water temperature and dissolved oxygen)in water mass and the movement of water mass.
The increase of Ammonia“beccarii”is recognaized during the investigation(August 1992 to June 1993).This phenomenon is compared to Ammonia event proposed by Nomura and Endo(1998).Although it was considered that ammonia event occured around the year 1980 in Lake Shinji and Lake Nakaumi,the result of this study suggests that the appearance of Ammonia event in the western part ofLake Shinji has a time lag about 12 years.
Journal Title
島根大学地球資源環境学研究報告
Volume
19
Start Page
65
End Page
76
ISSN
13439774
Published Date
2000-12-25
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Department of Geoscience, Interdisciplinary Graduate School of Science and Engineering
Estuary Research Center
Remark
12-14,16+ / 1993+
徳岡隆夫教授退官記念論誌集
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