沿海地区是海洋和陆地生态系统之间重要的界面环境,也是经济活动频繁的地区,其中,贸易,渔业和旅游业。拉罗谢尔(法国)的港口地区是这些地区的一部分,人类活动强烈,因此受到潜在的污染,特别是微量金属。在各种排放源中,电流(或牺牲)阴极保护可能会受到质疑。的确,关于港口牺牲阳极降解对双壳类动物健康的潜在影响的研究很少。因此,使用笼法对商业港口和拉罗谢尔码头的黑扇贝Mimachlamysvaria进行了研究。在实验室中观察了个体健康状况的几种生物标志物(SOD,GST,MDA,AChE,和LAC)。在两个暴露期获得的不同结果中,看来牺牲阳极的潜在影响,无论是新的还是在现场存在几年,被气象条件掩盖了,以及港口活动。
Coastal areas are important interface environments between marine and terrestrial ecosystems and are also areas of high economic activity related, among others, to trade, fishing and tourism. The port areas of La Rochelle (France) are part of these areas with strong anthropic activities and are therefore subject to potential contamination, particularly with trace metals. Among the various sources of discharges, galvanic (or sacrificial) cathodic protection can be questioned. Indeed, few studies have been carried out on the potential impact of the degradation of sacrificial anodes in ports on the health of bivalves. A
study was therefore carried out on the black scallop Mimachlamys varia in the commercial port and the marina of La Rochelle using the caging method. Several biomarkers of the health status of individuals were observed in the laboratory (SOD, GST, MDA, AChE, and LAC). Among the different results obtained over two exposure periods, it appears that the potential effects of sacrificial anodes, whether new or present on site for several years, are masked by meteorological conditions, as well as by harbor activities.