水下火山爆发是一种自然污染,会影响当地的所有海洋生物。这些喷发通常开始和结束火山的脱气阶段,尽管它们不影响岩浆喷发的大小,在局部较小程度地影响生物,例如头足类动物,由于它们的新陈代谢和营养水平,是污染的良好生物指标。共收集了三种头足类动物的180个样品用于研究:60个厚朴,ElHierro海底火山地区有60只章鱼和60只Loligovulgaris,加那利群岛的特内里费岛和兰萨罗特岛(每个地点每个物种20个样本),和金属浓度(Al,Cd,Cr,Cu,Fe,Li,Ni,分析了每个样品中的Pb和Zn)。与特内里费岛和兰萨罗特相比,所有物种在ElHierro中的所有金属均显示出显着差异。所有来自ElHierro的分析物种在九种研究金属中的浓度都较高,这是由于他们在塔戈罗海底火山附近被捕,当时处于脱气状态,排出了许多富金属化合物。
Underwater volcanic eruptions are a type of natural contamination that affect all marine organisms at a local level. These eruptions usually begin and end a degassing stage of the
volcano that, although they do not affect the magnitude of magma emanation, affect organisms to a lesser degree locally, such as cephalopods that due to their metabolism and trophic level, are good bioindicators of contamination. A total of 180 samples of three species of cephalopods were collected for the study: sixty Sepia officinalis, sixty Octopus vulgaris and sixty Loligo vulgaris in the area of the submarine
volcano in El Hierro, Tenerife and Lanzarote in the Canary Islands (twenty samples per species in each location), and the metal concentrations (Al, Cd, Cr, Cu, Fe, Li, Ni, Pb and Zn) in each of the samples were analyzed. All species showed significant differences for all metals in El Hierro compared to Tenerife and Lanzarote. All the analyzed species from El Hierro had higher concentrations of the nine studied metals, this is due to the fact that they were caught near the Tagoro submarine
volcano, which at the time was in a state of degassing and discharged many metal-rich compounds.