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首页> 外文期刊>Harmful Algae >Comparative Accumulation And Composition Of Lipophilic Marine Biotoxins In Passive Samplers And In Mussels (m. Edulis) On The West Coast Of Ireland
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Comparative Accumulation And Composition Of Lipophilic Marine Biotoxins In Passive Samplers And In Mussels (m. Edulis) On The West Coast Of Ireland

机译：爱尔兰西海岸的被动采样器和贻贝中的亲脂性海洋生物毒素的相对积累和组成

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Monitoring of lipophilic marine toxins was carried out in three shellfish production sites on the West Coast of Ireland. The toxins were monitored using passive samplers (solid phase adsorption toxin tracking; SPATT) and toxin-free mussels that were replaced weekly in the selected sampling stations. The toxin profiles and concentrations obtained in the SPATT and in the transplanted mussels were compared with those observed in indigenous (native) mussels from each production site as well as with the phytoplankton that was detected in the water. Numerous lipophilic toxins were detected in the SPATT discs by ultra-performance liquid-chromatography-mass spectrometry/mass spectrometry (UPLC-MS/ MS) and included okadaic acid (OA), dinophysistoxin-2 (DTX2), pectenotoxin-2 (PTX2), AZA1, AZA2, yessotoxin (YTX) and SPX-13-DesMe-C. The accumulation rate of toxins in the indigenous mussels and in the SPATT discs correlated well. Toxins were detected in all SPATT discs from all locations, even in the absence of toxin-producing phytoplankton, as observed previously by other research groups. It is quite clear from our data that the presence of okadaic acid in the water (even at high concentrations) did not induce toxicity in the transplanted mussels in the absence of phytoplankton. A severe toxic event of azaspiracids (AZAs) occurred in one of the sampling stations. The SPATT discs accumulated predominantly AZA1 and -2 suggesting that both toxins are biosynthesized by the AZA-producing organism. As opposed to the DSP event, the AZA event resulted in the contamination of the transplanted mussels for several consecutive weeks. This is the first study that reports the presence of YTX and SPX-13-DesMe-C in Irish waters. In our study conditions, the SPATT did not enable the forecasting of shellfish contamination as the increase in toxin concentration occurred at the same time in the shellfish and in the SPATT.
机译：在爱尔兰西海岸的三个贝类生产地点进行了亲脂性海洋毒素的监测。使用被动采样器（固相吸附毒素跟踪； SPATT）和无毒贻贝对毒素进行监测，这些贻贝在选定的采样站每周更换一次。将在SPATT和已移植贻贝中获得的毒素谱和浓度与在每个生产地点的本地（天然）贻贝中观察到的毒素谱和浓度以及在水中检测到的浮游植物进行了比较。通过超高效液相色谱-质谱/质谱（UPLC-MS / MS）在SPATT光盘中检测到许多亲脂性毒素，其中包括冈田酸（OA），狄诺氏菌毒素2（DTX2），果胶毒素2（PTX2）。 ，AZA1，AZA2，yesotoxin（YTX）和SPX-13-DesMe-C。本地贻贝和SPATT圆盘中毒素的积累速率具有很好的相关性。正如其他研究小组先前观察到的那样，即使在没有产生毒素的浮游植物的情况下，也从所有位置的所有SPATT圆盘中都检测到了毒素。从我们的数据中非常清楚的是，在没有浮游植物的情况下，水中冈田酸的存在（即使在高浓度下）也不会对贻贝的移植产生毒性。其中一个采样站发生了严重的氮杂螺菌酸（AZA）毒性事件。 SPATT光盘主要积累了AZA1和-2，表明这两种毒素都是由产生AZA的生物体生物合成的。与DSP事件相反，AZA事件导致连续几周污染了贻贝。这是第一项报道爱尔兰水域中存在YTX和SPX-13-DesMe-C的研究。在我们的研究条件下，由于毒素浓度在贝类和SPATT中同时发生，因此SPATT无法预测贝类的污染。

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