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Title Transcription
ユウコウチュウ ノ サンジョウ カラ ミタ 2003ネン シュンキ ノ アカシオ ハッセイ キ ノ ナカウミ ノ カイキョウ
Title Alternative
Water conditions during the time of red tide occurrence in spring, 2003,and the associated benthic foraminifera in Lake Nakaumi
File
language
jpn
Author
Nomura, Ritsuo
Description
Benthic foraminifera such as Trochammina hadai and Saccammina sp. occur along with biological aggregates(marine snow)that suspended in the brackish waters of Lake Nakaumi. These species are common in organic rich sediments at greater depths in this lake. The biological aggregates were mainly composed of a dinoflagellate Prolocentrum minimum, which formed a red tide in the spring of 2003. The presence of these foraminiferal species strongly suggests that strong wind stress caused turbulence that disturbed bottom sediments leading to dispersion at middle water depths. In addition to the observations based on this foraminiferal occurrence, the mixing of deeper and shallower water at the halocline is a significant factor leading to outbreaks of red tide.
Subject
foraminifera
biological aggregates(marine snow)
bottom turbulence
red tide
Lake Nakaumi
Journal Title
Laguna : 汽水域研究
Volume
11
Start Page
125
End Page
130
ISSN
21852995
Published Date
2004-06
NCID
AN10439529
Publisher
島根大学汽水域研究センター
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Estuary Research Center
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