Small scale retentive structures and Dinophysis
Xie, HQ; Lazure, P; Gentien, P; hongqinxie99@hotmail.com; plazure@ifremer.fr
2007
发表期刊JOURNAL OF MARINE SYSTEMS
ISSN0924-7963
卷号64期号:40547页码:173-188
摘要Despite its rarity, Dinophysis acuminata is in terms of economic impact, the first toxic algal species along the coasts of Western Europe. It is observed at low levels (< 20 cell l(-1)) all the year round but toxic events occur mainly in late spring and summer. D. acuminata ecophysiology is largely unknown due to the inability to culture it. Therefore, standard biomass models based on inorganic nutrition are largely inadequate. Presently, any progress in describing the conditions of population growth of this species will be a step forward to prediction of harmful events at the coast. This species has been observed at increased, albeit low cell densities in retentive eddies located in pycnocline layers. A concentration build-up of one species results from the balance between growth and loss processes, one of the latter being dispersal. The scales of interest for a D. acuminata population are of the order of 10 nautical miles on the horizontal and duration of 10 days, for a reported achievable growth rate of 0.6 day(-1). A three dimensional (3D) hydrodynamical model of the Bay of Biscay has been elaborated to reproduce hydrological structures over the last decade. We attempt here to relate the existence of retentive structures revealed from simulations under realistic forcing conditions and the toxic coastal events recorded in the 10-year time series of the French plankton monitoring network database. The eddies in the coastal area appear to be directly related with the Dinophysis coastal events and they may be a potential effective tool to predict those. (c) 2006 Elsevier B.V. All rights reserved.
部门归属IFREMER, Ctr Brest, Plouzane, France; Chinese Acad Sci, LED, S China Sea Inst Oceanol, Guangzhou 510301, Peoples R China
关键词Dinophysis Prediction Rare Species Eddy 3d Hydrodynamical Model Bay Of Biscay
学科领域Geosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography
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收录类别sci
资助项目LED
WOS记录号WOS:000244116600011
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5909
专题热带海洋环境国家重点实验室(LTO)
通讯作者hongqinxie99@hotmail.com; plazure@ifremer.fr
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Xie, HQ,Lazure, P,Gentien, P,et al. Small scale retentive structures and Dinophysis[J]. JOURNAL OF MARINE SYSTEMS,2007,64(40547):173-188.
APA Xie, HQ,Lazure, P,Gentien, P,hongqinxie99@hotmail.com,&plazure@ifremer.fr.(2007).Small scale retentive structures and Dinophysis.JOURNAL OF MARINE SYSTEMS,64(40547),173-188.
MLA Xie, HQ,et al."Small scale retentive structures and Dinophysis".JOURNAL OF MARINE SYSTEMS 64.40547(2007):173-188.
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