Freshwater acidification: an example of an endangered crayfish species sensitive to pH

摘要: Carbon dioxide released in the atmosphere and dissolved water leads to acidification. Relatively few studies have focused on fresh waters, where biocalcifying species are more readily impacted by changes pH. Sensitivity pH of an endangered calcium-demanding organism, crayfish Austropotamobius pallipes, was investigated Pinail nature reserve, a natural system with 3000 permanent ponds, some inhabited others not, originally due human introduction. From 14 chemical parameters measured this study, main limiting factor preventing establishment appears be acidity (pH   7).