Several experiments were performed using larvae of Paracentrotus lividus (Lamarck, 1816) in order to determine the consequences of different chronic contamination with mixtures of (i) fifteen trace elements from concentrations measured in the world ocean seawater, and (ii) seven trace elements from contamination resulting from mining. To predict the impact of increased marine pollution, higher concentrations were also used. These bioassays were conducted using spawners collected from Calvi (reference site, Corsica), and Albo (mining area, Corsica). The effects of trace elements have been studied on the entire larval development. The results show wider arms and delayed development as the number and concentration of trace elements increases. Therefore, the synergy between the different trace elements is of paramount importance with regard to the impact on organisms. Probably due to a hormesis phenomenon, larvae contaminated with seven trace elements at average concentrations developed more quickly. This work also highlighted the importance of the origin of spawners in ecotoxicological studies. To our knowledge, this is the first study to investigate the effects of such a broad combination of trace elements for chronic contamination on the entire larval stage of Paracentrotus lividus.

使用Paracentrotus lividus的幼虫进行了几项实验(Lamarck, 1816) 以确定不同慢性污染的后果，其中混合了 (i) 来自世界海洋海水中测量的浓度的 15 种微量元素，和 (ii) 来自采矿污染的 7 种微量元素。为了预测海洋污染增加的影响，还使用了更高的浓度。这些生物测定是使用从卡尔维（参考地点，科西嘉岛）和阿尔博（科西嘉岛矿区）收集的产卵器进行的。已经研究了微量元素对整个幼虫发育的影响。结果显示，随着微量元素数量和浓度的增加，手臂更宽，发育延迟。因此，不同微量元素之间的协同作用对于对生物体的影响至关重要。可能是由于兴奋现象，被平均浓度的七种微量元素污染的幼虫发育得更快。这项工作还强调了产卵器起源在生态毒理学研究中的重要性。据我们所知，这是第一项调查如此广泛的微量元素组合对慢性污染整个幼虫阶段的影响的研究。Paracentrotus lividus。