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.
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.
Environ Pollut. 2020 Nov;266(Pt 3):115113. doi: 10.1016/j.envpol.2020.115113. Epub 2020 Jun 29.
Marine fishes are exposed to great human-induced alterations due to the indiscriminate discharges into the sea, increasing marine pollution. For this study, 324 specimens of Sardina pilchardus from the Canary Islands were analized during a period of 2 years (June 2016 to May 2018). The concentration of 11 metals and trace elements (Al, B, Cd, Cr, Cu, Fe, Li, Ni, Pb, V and Zn) was determined in each individual using the Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) technique. Statistical analyses were carried out considering the following factors: oceanographic season, maturity of the gonads in the seasons, size of the specimens. Sardina pilchardus specimens captured in the hot season presented higher Ni, Li and Pb levels than the specimens caught in the cold season. Immature specimens had higher concentration in more metals than the mature specimens. This fact may be due to the fact that these specimens require a much higher metabolic rate due to their growth and do not detoxify like mature specimens. Significant differences were found in the concentration of metals in all the analyzes performed.
由于海洋的无差别排放，海洋鱼类受到了巨大的人为影响，导致海洋污染不断增加。在这项研究中，对 2016 年 6 月至 2018 年 5 月期间来自加那利群岛的 324 个沙丁鱼样本进行了分析。采用电感耦合等离子体发射光谱（ICP-OES）技术，对每个个体中的 11 种金属和微量元素（Al、B、Cd、Cr、Cu、Fe、Li、Ni、Pb、V 和 Zn）的浓度进行了测定。统计分析考虑了以下因素：海洋季节、性腺在季节中的成熟度、标本的大小。在炎热季节捕获的沙丁鱼样本中，Ni、Li 和 Pb 的含量高于寒冷季节捕获的样本。未成熟的样本中，比成熟样本更多的金属浓度更高。这一事实可能是由于这些样本由于生长需要更高的代谢率，而不像成熟样本那样能够解毒。在所有进行的分析中，金属浓度都存在显著差异。
