Casanueva-Marenco María José, Galindo-Riaño María Dolores, Granado-Castro María Dolores, Díaz-de-Alba Margarita
Department of Analytical Chemistry, Institute of Biomolecules (INBIO), Faculty of Sciences, International Campus of Excellence of the Sea (CEI-MAR), University of Cadiz, Campus Rio San Pedro, 11510 Puerto Real, Cadiz, Spain.
Toxics. 2024 Feb 21;12(3):166. doi: 10.3390/toxics12030166.
Biotic samples from Algeciras Bay (South-west Europe) were studied to assess its ecological status, complementing the previous abiotic monitoring of trace metals in water and sediments. This bay is a densely populated area with intense port traffic and is highly industrialised with metal inputs. To study the impact of this, Zn, Cd, Pb, and Cu contents were determined in tissues of benthic () and benthopelagic species (, and ). Notable levels of Zn and Cu were found in the liver and gills of all fish species. Compared to international muscle guidelines, Pb sometimes exceeded the most restrictive values, outstanding with 27% of samples above the permissible value. Metal pollution indexes revealed that the liver and gills of benthic species were more affected by metal pollution than benthopelagic species, especially in most industrialised sites. Particularly, presented a higher accumulation factor from sediment of Cd and Cu in the liver (30.1 and 345.1), probably due to the close interaction as benthic species. Among the species studied, and proved to be the best representative and useful bioindicators of metal-polluted environments as this bay. The results were consistent with the findings from the abiotic samples.
对阿尔赫西拉斯湾（欧洲西南部）的生物样本进行了研究，以评估其生态状况，作为之前对水体和沉积物中痕量金属进行非生物监测的补充。该海湾人口密集，港口交通繁忙，工业化程度高，有金属输入。为研究其影响，测定了底栖物种（）和底栖上层物种（、和）组织中的锌、镉、铅和铜含量。在所有鱼类的肝脏和鳃中都发现了显著水平的锌和铜。与国际肌肉指南相比，铅有时超过了最严格的标准，特别是，27%的样本超过了允许值。金属污染指数显示，底栖物种的肝脏和鳃比底栖上层物种更容易受到金属污染的影响，尤其是在工业化程度最高的地点。特别是，在肝脏中镉和铜的沉积物积累因子较高（分别为30.1和345.1），这可能是由于其作为底栖物种的密切相互作用。在所研究的物种中，和被证明是像该海湾这样受金属污染环境的最佳代表性和有用的生物指标。结果与非生物样本的研究结果一致。
