Seasonal occurrence of toxic phytoplankton and phycotoxins at a mussel aquaculture site in Nova Scotia, Canada

doi:10.1016/j.hal.2023.102528

	Seasonal occurrence of toxic phytoplankton and phycotoxins at a mussel aquaculture site in Nova Scotia, Canada
	Lewis, Nancy I.1; Yu, Rencheng 1,2; Rafuse, Cheryl 1; Quilliam, Michael A.1
	2023-11-01
发表期刊	HARMFUL ALGAE
ISSN	1568-9883
卷号	129 页码:11
通讯作者	Lewis, Nancy I.([email protected])
摘要	A three-year field study at a mussel (Mytilus edulis) aquaculture site in Ship Harbour, Nova Scotia, Canada was carried out between 2004 and 2006 to detect toxic phytoplankton species and dissolved lipophilic phycotoxins and domoic acid. A combination of plankton monitoring and solid phase adsorption toxin tracking (SPATT) techniques were used. Net tow and pipe phytoplankton samples were taken weekly to determine the abundance of potentially toxic species and SPATT samplers were deployed weekly for phycotoxin analysis. Mussels were also collected for toxin analysis in 2005. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to analyse the samples for spirolides (SPXs), pectenotoxins (PTXs), okadaic acid group toxins (OA, DTXs) and domoic acid (DA). Phycotoxins were detected with SPATT samplers beginning from the time of deployment until after the producing organisms were no longer observed in pipe samples. Seasonal changes in toxin composition occurred over the sampling period and were related to changes in cell concentrations of Alexandrium Halim, Dinophysis Ehrenberg and Pseudo-nitzschia (Hasle) Hasle. Spirolides peaked in late spring and early summer, followed by DA in mid-July. Okadaic acid, DTX1 and PTXs occurred throughout the field season but peaked in late summer. Concentrations of some phycotoxins detected in SPATT samplers deployed within the area where mussels were suspended on lines were lower than in those deployed outside the mussel farm. The SPATT samplers provided a useful tool to detect the presence of phycotoxins and to establish trends in their appearance in the Ship Harbour estuary.
关键词	SPATT LC -MS Alexandrium Dinophysis Pseudo-nitzschia Spirolides Okadaic acid group toxins Pectenotoxins Domoic acid
DOI	10.1016/j.hal.2023.102528
收录类别	SCI
语种	英语
资助项目	National Research Council of Canada; Ministerio de Cienca y Tecnologia of Spain
WOS研究方向	Marine & Freshwater Biology
WOS类目	Marine & Freshwater Biology
WOS记录号	WOS:001101614100001
出版者	ELSEVIER
WOS关键词	DOMOIC ACID ; DINOPHYSIS-ACUTA ; SHELLFISH TOXINS ; PSEUDO-NITZSCHIA ; ALGAL TOXINS ; IDENTIFICATION ; ADSORPTION ; PROFILES ; CULTURES
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/183970
专题	海洋生态与环境科学重点实验室
通讯作者	Lewis, Nancy I.
作者单位	1.Natl Res Council Canada, Biotoxin Metrol, 1411 Oxford St, Halifax, NS B3H 3Z1, Canada 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Lewis, Nancy I.,Yu, Rencheng,Rafuse, Cheryl,et al. Seasonal occurrence of toxic phytoplankton and phycotoxins at a mussel aquaculture site in Nova Scotia, Canada[J]. HARMFUL ALGAE,2023,129:11.
APA	Lewis, Nancy I.,Yu, Rencheng,Rafuse, Cheryl,&Quilliam, Michael A..(2023).Seasonal occurrence of toxic phytoplankton and phycotoxins at a mussel aquaculture site in Nova Scotia, Canada.HARMFUL ALGAE,129,11.
MLA	Lewis, Nancy I.,et al."Seasonal occurrence of toxic phytoplankton and phycotoxins at a mussel aquaculture site in Nova Scotia, Canada".HARMFUL ALGAE 129(2023):11.

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