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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. 30
  5. 1
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. Coastal Marine Science
  4. 30
  5. 1

Dinophysis spp. recorded in the coastal waters of northern Vietnam during 2002-2003

https://doi.org/10.15083/00040759
https://doi.org/10.15083/00040759
f0f3fca1-5978-4f37-8273-8a10f4f0ae1d
名前 / ファイル ライセンス アクション
KJ00004354590.pdf KJ00004354590.pdf (1.1 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2007-04-05
タイトル
タイトル Dinophysis spp. recorded in the coastal waters of northern Vietnam during 2002-2003
言語
言語 eng
キーワード
主題Scheme Other
主題 Dinophysis caudata
キーワード
主題Scheme Other
主題 toxic dinoflagellate
キーワード
主題Scheme Other
主題 DSP toxin
キーワード
主題Scheme Other
主題 hard clam
キーワード
主題Scheme Other
主題 Vietnam
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 10.15083/00040759
ID登録タイプ JaLC
著者 Nguyen, Nguyen Van

× Nguyen, Nguyen Van

WEKO 139500

Nguyen, Nguyen Van

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Ha, Dao Viet

× Ha, Dao Viet

WEKO 139501

Ha, Dao Viet

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Tung, Le Thanh

× Tung, Le Thanh

WEKO 139502

Tung, Le Thanh

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著者所属
著者所属 Research Institute for Marine Fisheries, Vietnam
著者所属
著者所属 Institute of Oceanography, Vietnam
抄録
内容記述タイプ Abstract
内容記述 A monitoring on toxins responsible for Diarrhetic Shellfish Poisoning (DSP) was carried out at several culture areas of hard clam (Meretrix meretrix) in the northern coast of Vietnam during May 2002 and December 2003. Quantitative observation of Dinophysis spp. was made one to four times every month and DSP toxins in the hard clam grown in the area was analyzed monthly using the HPLC method. Six species of Dinophysis were recorded, including D. caudata, D. fortii, D. miles, D. rotundata, D. mitra and D. hastata. Among them, D. caudata was the most common species. Others were not common and their densities were ignorable. D. caudata appeared almost all around the year at all sampling sites with density ranged from 0 to more than 3000 cells/l. However, it was more abundant during the warm period, i.e. from late February to late November. For the rest of a year, cells were rarely found. D. caudata was recorded in a wide range of temperature (15-34.3℃), but its significant density (over 100 cells/l) was only observed when water temperature exceeded 20℃. D. caudata appeared and could reach high density at all salinity in the range of 8-34 PSU. The highest recorded density was 3128 cells/l at 22℃ and 8.2 PSU in Thanh Hoa area in February 2003. ""Blooms"" of D. caudata, together with other dominant dinoflagellates, usually coincided with the vanishing period of diatoms. Okadaic acid (OA) was detected in edible part of clams but at low concentration in all samples. Maximal level was 80ng OA/100g, encountered in Thanh Hoa transect during August 2002 and April 2003. DTX 1-4 were not detected in all samples. No significant correlation between OA concentration in clam and the density of D. caudata in the water sample was observed, although toxins sometimes peaked the same time with D. caudata density. Low concentration of toxins implicates low risk of DSP and explains the absence of poisoning cases in the area so far. However, other shellfishes in the area should also be subjected to toxin monitoring.
書誌情報 Coastal marine science

巻 30, 号 1, p. 107-110, 発行日 2006-04-28
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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