When cloudy weather is prevalent there is little oxygen produced in the pond and water oxygen levels will decrease. If you have a high stocking rate or high population of fish from natural regeneration then the fish can get into trouble. ... The dying weeds will consume oxygen and cause a fish kill.
Explanation:
Many, but not all, fish kills in the summer result from low concentrations of dissolved oxygen in the water. Fish, like all other complex life forms, need oxygen to survive. ... Other organisms use oxygen, too, including the algae that grow in the summer and bacteria that degrade organic matter.
Depletion is an accrual accounting technique used to allocate the cost of extracting natural resources such as timber, minerals, and oil from the earth. Like depreciation and amortization, depletion is a non-cash expense that lowers the cost value of an asset incrementally through scheduled charges to income.
