The city of Warsaw woke up to a horrifying site recently as several dead fish washed up on the Osage River near Main Street. According to the Missouri Department of Conservation, a drop in oxygen caused several hundred carp, buffalo and drum fish to die along the banks. The Department sent out agents to test the water to see if the levels have changed. According to the Lost Valley Fish Hatchery, the group responsible for the fish, a low oxygen issue in the water is something that just can’t be controlled. According to an Official, the oxygen levels can drop at night when the plant life, which gives the oxygen to the water, doesn’t receive the necessary sunlight to produce the oxygen. Therefore in a shallow section, it is very possible that the oxygen can go below a level that fish can accept. At this time volunteers are working to clean up the fish.