more... > Oxygen Depletions and Other Types of Fish Kills > Diseases in Pond Fishes [Image: image from the first page of the document] When fish are stressed, they are more susceptible to disease. This document discusses stress and diseases that fish can contract. Oxygen Depletion and Other Types of Fish Kills This document explains causes, effects, and solutions for oxygen depletion. It also discusses other causes of fish kills, such as chemical contamination.