Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, Apdo. 22, C/ Varadero 1, 30740 San Pedro del Pinatar, Murcia, Spain.
Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, Apdo. 22, C/ Varadero 1, 30740 San Pedro del Pinatar, Murcia, Spain.
Mar Pollut Bull. 2021 Jul;168:112407. doi: 10.1016/j.marpolbul.2021.112407. Epub 2021 Apr 27.
The seasonal bioaccumulation of trace metals, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorinated pesticides (OCPs) in sea snail (Hexaplex trunculus) and sea cucumber (Holothuria polii) from Mar Menor lagoon were characterised. The highest concentrations of p,p'-DDE were detected in the central and south part of Mar Menor lagoon. However, the highest concentrations of metals in sea snail and holothurians were detected in the influence area of El Beal wadi. Biomagnification factors (BMF) in sea snail from cockle (sea snail-cockle concentration ratio) were higher than 5 for metal and organochlorinated compounds. However, similar concentrations were observed in both species for PAHs due to gastropods capability of metabolising these pollutants. Consequently, sea snail is proposed as a sentinel for trace metals, PCBs and OCPs in the coastal lagoons, not only due to its bioaccumulation and biomagnification capacity but also the easy sampling and amply distribution in many coastal areas.
研究了梅诺尔泻湖（Mar Menor lagoon）中的海螺（Hexaplex trunculus）和海参（Holothuria polii）体内痕量金属、多环芳烃（PAHs）、多氯联苯（PCBs）和有机氯农药（OCPs）的季节性生物累积情况。在梅诺尔泻湖的中部和南部地区检测到了最高浓度的 p,p'-DDE。然而，海螺和海参体内金属的最高浓度出现在 El Beal 流域的影响区域。海螺的生物放大因子（BMF）（海螺-贻贝浓度比）高于 5，表明金属和有机氯化合物在海螺体内发生了生物放大。然而，由于腹足类动物能够代谢这些污染物，因此在这两种物种中观察到了相似浓度的 PAHs。因此，海螺不仅因其生物累积和生物放大能力，而且因其易于采样和在许多沿海地区广泛分布，被提议作为沿海泻湖痕量金属、PCBs 和 OCPs 的指示生物。
