Xiamen Huaxia University, Xiamen 361024, China; Research Center for Marine Ecology, The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
Research Center for Marine Ecology, The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China.
Sci Total Environ. 2018 Jan 15;612:931-939. doi: 10.1016/j.scitotenv.2017.08.304. Epub 2017 Sep 5.
For the first time, the composition, concentration and distribution characteristics of typical lipophilic marine algal toxins (LMATs) are investigated in surface seawater, suspended particulate matter (SPM) and sediments from the Yellow Sea and the Bohai Sea, China. Pectenotoxin-2 (PTX2) and okadaic acid (OA) were detected in offshore surface seawater samples (n=67) of the Yellow and Bohai Seas, and PTX2 was found in higher concentrations than OA. The concentrations of PTX2 were between 0.49 and 14.14ng/L. OA, dinophysistoxin-1(DTX1), PTX2 and gymnodimine (GYM) were detected in the nearshore surface seawater samples (n=20) of the Haizhou Bay of the Yellow Sea. OA concentrations were between 11.47 and 55.85ng/L. There was a large degree of variation in the concentrations of DTX1, from <limit of quantification (LOQ) up to 143.14ng/L. The nearshore surface seawater samples (n=13) obtained from the Longdao area of the Bohai Sea mainly contain OA (5.00-24.14ng/L) and DTX1 (1.52-49.39ng/L), with PTX2 concentrations being less than the LOQ. Several LMATs were also detected both in the SPM and sediment samples of each study area. In summary, the LMAT composition and concentration levels in the surface seawater found in nearshore samples were substantially different from those of samples from the distant shore, which indicated the obvious regional characteristics of LMATs according to their spatial distribution in the Yellow Sea and the Bohai Sea.
首次对黄海和渤海海域的表层海水、悬浮颗粒物（SPM）和沉积物中的典型脂溶性海洋藻类毒素（LMATs）的组成、浓度和分布特征进行了研究。在黄海和渤海的近海表层海水样品（n=67）中检测到了扇贝毒素-2（PTX2）和 okadaic 酸（OA），且 PTX2 的浓度高于 OA。PTX2 的浓度在 0.49 到 14.14ng/L 之间。在黄海海州湾的近岸表层海水样品（n=20）中检测到了 OA、dinophysistoxin-1（DTX1）、PTX2 和 gymnodimine（GYM）。OA 的浓度在 11.47 到 55.85ng/L 之间。DTX1 的浓度变化很大，从<定量下限（LOQ）到 143.14ng/L 不等。从渤海辽东湾采集的近岸表层海水样品（n=13）主要含有 OA（5.00-24.14ng/L）和 DTX1（1.52-49.39ng/L），PTX2 的浓度低于 LOQ。在每个研究区域的 SPM 和沉积物样品中也检测到了几种 LMATs。总之，近岸样本中表层海水中 LMAT 的组成和浓度水平与远岸样本有很大不同，这表明根据黄海和渤海的空间分布，LMATs 具有明显的区域性特征。
