The impact of acid precipitation on aquatic ecosystems may be intensified by melting snow. When snow melts rapidly in the spring, the stream or lake may be "shocked" with an excessive amount of acid. In the spring, at the time of acid snow melting, the various aquatic organisms are reproducing and are the most sensitive increases in acid.
The organisms that are affected by acid from the snow melt off will either absorb the chemicals or die because they are too sensitive. There must be a way to tell the inedible organisms from the edible ones if they get into a food source reservoir