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  1. 139 大気海洋研究所
  2. 80 国際沿岸海洋研究センター
  3. Coastal Marine Science
  4. 29
  5. 1
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. Coastal Marine Science
  4. 29
  5. 1

Species diversity and abundance of seagrasses in southwestern Thailand under different influence of river discharge

https://doi.org/10.15083/00040826
https://doi.org/10.15083/00040826
90e7ce3f-e2ca-48fe-8ad8-bcf6a76d680e
名前 / ファイル ライセンス アクション
KJ00004098943.pdf KJ00004098943.pdf (603.5 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2007-04-05
タイトル
タイトル Species diversity and abundance of seagrasses in southwestern Thailand under different influence of river discharge
言語
言語 eng
キーワード
主題Scheme Other
主題 seagrass
キーワード
主題Scheme Other
主題 Thailand
キーワード
主題Scheme Other
主題 river discharge
キーワード
主題Scheme Other
主題 spatial comparison
キーワード
主題Scheme Other
主題 diversity
キーワード
主題Scheme Other
主題 biomass
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
ID登録
ID登録 10.15083/00040826
ID登録タイプ JaLC
著者 Nakaoka, Masahiro

× Nakaoka, Masahiro

WEKO 139739

Nakaoka, Masahiro

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Tanaka, Yoshiyuki

× Tanaka, Yoshiyuki

WEKO 139740

Tanaka, Yoshiyuki

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Watanabe, Masako

× Watanabe, Masako

WEKO 139741

Watanabe, Masako

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著者所属
著者所属 Graduate School of Science and Technology, Chiba University
著者所属
著者所属 Akkeshi Marine Station, Hokkaido University
抄録
内容記述タイプ Abstract
内容記述 Seagrass beds are among the most important components in coastal ecosystem, but are susceptible to human-induced changes in terrestrial ecosystem. As a first step to understand the effects of terrestrial input through river discharge on tropical seagrass ecosystems, we carried out quantitative mapping of seagrass beds at Pang-gna and Trang Provinces, southwestern Thailand to examine spatial variation in species composition, species diversity and biomass of seagrasses. Five seagrass beds were chosen as study sites that locate at different distances from the major river mouths, and thus subjected to different impacts of river discharge. These seagrass beds differed greatly in environmental conditions, seagrass diversity and abundance. Seagrass beds located near large river mouths showed higher silt-clay content in the sediments and light attenuation of water, possibly due to transportation of sediment from rivers and its resuspension. A total of nine seagrass species occurred. Enhalus acoroides and Halophila ovalis occurred in all the stations, whereas distribution of other species were mostly confined to seagrass beds with small or moderate degree of siltation and light attenuation. Seagrass species diversity measured by species richness and Simpson's diversity index was lower in seagrass beds near the river mouth. These findings highlight negative impacts of terrestrial ecosystems through river discharge on seagrass biodiversity and its functioning along the coastal areas of southwestern Thailand.
書誌情報 Coastal marine science

巻 29, 号 1, p. 75-80, 発行日 2004-04-30
ISSN
収録物識別子タイプ ISSN
収録物識別子 13493000
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA11957899
フォーマット
内容記述タイプ Other
内容記述 application/pdf
日本十進分類法
主題Scheme NDC
主題 452
出版者
出版者 International Coastal Research Center, Ocean Research Institute, the University of Tokyo
出版者別名
東京大学海洋研究所国際沿岸海洋研究センター
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