(trout in particular) were being found. It was at this time that scientist began to search for the reason. As the scientists continued to work they found many piles of dead fish, up to 5000 in one pile, further up the river. Divers were sent in to examine the bottom of the rivers. What they found were many more dead fish. Many live and dead specimens were taken back to labs across Norway. When the live specimens were examined they were found to have very little sodium in their blood. This is a typical symptom of acidic poisoning. The acid had entered the gills of the fish and poisoned them so that they were unable to extract salt from the water to maintain their body's sodium levels. Many scientists claimed that this acid poisoning was due to the fact that it was just after the winter and that all the snow and ice were running down into the streams and lakes. They believed that the snow had been exposed to many natural phenomena that gave the snow its high acid content. Other scientists were not sure that this theory was correct because at the time that the snow was added to the lakes and streams the Ph levels would change from around 5.2 to 4.6. They believed that such a hi
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