Department of Life Sciences, Polydisciplinary Faculty of Larache, Abdelmalek Essaadi University, 745 BP, 92004 Larache, Morocco; Laboratoire de Biotechnologie et de Chimie Marines, Université de Bretagne Sud, EA 3884-IUEM, BP 92116, 56321 CS, Lorient, Brittany, France; Analytical, Environmental and Geochemistry (AMGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Mazandaran, Iran.
Mar Pollut Bull. 2022 Jul;180:113770. doi: 10.1016/j.marpolbul.2022.113770. Epub 2022 May 26.
The present research aimed to investigate the concentrations and patterns of six potentially toxic elements (PTEs) in three common sponge species collected along the Moroccan Mediterranean coast, as well as their levels in ambient seawater and sediments. Distinct inter-species variability in PTEs bioaccumulation was observed among the three species, suggesting that sponges have distinct selectivity for assimilating PTEs from the surrounding environment. C. crambe had a higher enrichment capacity for Cu, As, Cr and Ni, while P. ficiformis and C. reniformis exhibited the highest concentration of Cd and Pb, respectively. Interestingly, a similar spatial distribution patterns of PTEs was observed in the three media, with high values occurring in Tangier and Al-Hoceima locations. Overall, our results confirm that sponges reliably reflect the bioavailability of PTEs in their immediate environment, especially C. crambe, whose PTE tissue contents were highly and positively correlated with the contents of all PTEs in the sediments.
本研究旨在调查摩洛哥地中海沿岸采集的三种常见海绵物种中六种潜在有毒元素 (PTEs) 的浓度和分布模式，以及它们在周围海水中和沉积物中的水平。三种物种之间的 PTEs 生物累积存在明显的种间变异性，表明海绵对周围环境中 PTEs 的吸收具有明显的选择性。C. crambe 对 Cu、As、Cr 和 Ni 的富集能力较高，而 P. ficiformis 和 C. reniformis 则分别表现出最高的 Cd 和 Pb 浓度。有趣的是，三种介质中 PTEs 的空间分布模式相似，在丹吉尔和胡塞马地区的含量较高。总的来说，我们的结果证实，海绵能够可靠地反映其周围环境中 PTEs 的生物可利用性，尤其是 C. crambe，其 PTE 组织含量与沉积物中所有 PTEs 的含量呈高度正相关。
