Investigation of Pectenotoxin Profiles in the Yellow Sea (China) Using a Passive Sampling Technique

Marine Drugs

Zhaoxin Li²  Guo Mengmeng²  Yang Shouguo¹  Wang Qingyin² 

[1] College of Fisheries and Life Science, Shanghai Ocean University, 200090, Shanghai, China;Yellow Sea Fisheries Research Institute, No.106 Nanjing Road, 266071 Qingdao, China

关键词: pectenotoxin;    mussel;    mytilus edulis;    LC-MSMS;    SPATT;    passive sampling;   

DOI  :  10.3390/md8041263

来源: mdpi

【 摘 要 】

Pectenotoxins (PTXs) are a group of lipophilic algal toxins. These toxins have been found in algae and shellfish from Japan, New Zealand, Ireland, Norway and Portugal. PTX profiles vary with geographic location of collection site. The aim of the present study was to investigate PTX profiles from the Yellow Sea, China. The sampling location was within an aquatic farm (N36°12.428′, E120°17.826′) near the coast of Qingdao, China, in the Yellow Sea from 28 July to 29 August 2006. PTXs in seawater were determined using a solid phase adsorption toxin tracking (SPATT) method. PTXs were analyzed by HPLC-MSMS. PTX-2, PTX-2 sec acid (PTX-2 SA) and 7-epi-PTX-2 SA were found in seawater samples. The highest levels of PTXs (107 ng/g of resin PTX-2, 50 ng/g of resin PTX-2 SA plus 7-epi-PTX-2 SA) in seawater were found on 1 August, 2006. From 1 August to 29 August, the levels of PTX-2 and PTX-2 SA decreased. In the same area, the marine algae, Dinophysis acuminata was found in the seawater in the summer months of 2006. This indicated that Dinophysis acuumuta might be the original source of PTXs. PTX-11 and PTX-12a/b were not found in seawater.

【 授权许可】

CC BY   
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland