Local resident: An overabundance of algae must be harmful to the smaller fish in this pond
During the fifteen or so years that I have lived here, the few times that I have seen large numbers of dead small fish wash ashore in late summer coincide exactly with the times that I have noticed abnormally large amounts of algae in the water
ignores the possibility that the overabundance of algae and the deaths of smaller fish are independent effects of a common cause