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Title Transcription
イセハヤワン チョウセイチ ト カコウゼキ タンスイイキ ニオケル ショクブツ プランクトン ハッセイ パターン ノ キョウツウセイ ト ソウイ
Title Alternative (English)
Comparison of phytoplankton biomass above a rivermouth barrage and in a freshwater reservoir, upper Isahaya Bay
File
language
jpn
Author
Hodoki, Yoshikuni
Murakami, Tetuo
Description
We compared seasonal and spatial variations in phytoplankton biomass between a location upstream of a rivermouth barrage in the Tone River and a freshwater reservoir in Isahaya Bay in order to examine phytoplankton growth in areas affected by dam emplacement. Simple linear regression analyses were conducted between water renewal rates and phytoplankton biomass(chlorophyll a concentration). Signifi cant negative correlations were found just upstream of a rivermouth barrage in the Tone River and in the riverine zone of a freshwater reservoir in Isahaya Bay from spring to summer. However, no signifi cant correlation existed between water renewal rate and phytoplankton biomass in the reservoir itself, which suggests that other environmental factors affect phytoplankton biomass at this location. Growth of the phytopkankton community increases the organic matter load to coastal areas, and an estimated 24% of the organic carbon load into Isahaya Bay was derived from autochthonous production in the Isahaya Bay reservoir.
Subject
dam
phytopkankton
reclamation work
rivermouth barrage
water renewal rate
Journal Title
Laguna : 汽水域研究
Volume
14
Start Page
25
End Page
31
ISSN
21852995
Published Date
2007-12
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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