Grupo interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Tenerife, Spain; Ecología Marina Aplicada y Pesquerías, i-UNAT, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, Spain.
Grupo interuniversitario de Toxicología Alimentaria y Ambiental, Facultad de Medicina, Universidad de La Laguna (ULL), Campus de Ofra, 38071 San Cristóbal de La Laguna, Tenerife, Spain; Departamento de Biología Animal y Edafología y Geología, Unidad Departamental de Ciencias Marinas, Universidad de La Laguna, 38206 La Laguna, Santa Cruz de Tenerife, Spain.
Mar Pollut Bull. 2022 Sep;182:113964. doi: 10.1016/j.marpolbul.2022.113964. Epub 2022 Jul 21.
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.
水下火山喷发是一种自然污染，会对当地所有海洋生物造成影响。这些喷发通常始于火山的排气阶段，止于排气阶段，虽然它们不会影响岩浆喷发的规模，但会在局部程度上对生物产生较小的影响，例如头足类动物，由于其新陈代谢和营养水平，是污染的良好生物指标。总共采集了三种头足类动物的 180 个样本进行研究：在特内里费岛和兰萨罗特岛的埃利赫罗海底火山地区采集了 60 只乌贼、60 只普通章鱼和 60 只普通鱿鱼（每个地点每种动物各采集 20 个样本），并分析了每个样本中的金属浓度（Al、Cd、Cr、Cu、Fe、Li、Ni、Pb 和 Zn）。与特内里费岛和兰萨罗特岛相比，埃利赫罗的所有物种在所有金属方面都表现出显著差异。来自埃利赫罗的所有分析物种都含有更高浓度的这 9 种研究金属，这是因为它们是在塔戈罗海底火山附近捕获的，当时火山处于排气状态，排放了许多富含金属的化合物。
