Why do fish in shallow pond die in summers ?
Answers
Answer:
Hot water holds less oxygen than cool water. Shallow ponds get warmer than deeper ponds, and with little rain, area ponds are becoming shallower by the day. ... "That can cause oxygen levels at night, when plants are using the oxygen, to dip below levels needed to sustain fish." Preventing summer fish kills is difficult.
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. They get theirs in the form of oxygen gas dissolved in the water. That's why it's important to have an aeration device, a bubbler, in your home aquarium.
Warm water holds less dissolved oxygen than cold water, so summer is the time when fish can have a hard time getting enough oxygen. Other organisms use oxygen, too, including the algae that grow in the summer and bacteria that degrade organic matter. During the day, the algae produce oxygen through photosynthesis, but at night, when photosynthesis stops, they and other organisms keep respiring, using up oxygen