Acidic deposition: Effects on aquatic ecosystems

The literature pertaining to the influence of the atmospheric deposition of acidifying substances on aquatic ecosystems is examined in this article. Important chemical species in atmospheric deposition are first identified, and their influence on stream and ultimately on lake water chemistry discussed. Changes that have accompanied acidification among biological communities of decomposers, primary and higher order producers are discussed. Where they exist, hypotheses relating to causes of community changes are examined.