Question

There is mass mortality of fishes in a pond. What may be the reasons?

Answer 1

Reasons for mass mortality of fishes in the pond:

1. One of the main reasons for the mass mortality of fish in the pond is water pollution.
2. Harmful chemical toxins are discharged into the water bodies.
3. Fishes when they come in contact with such toxins, they lead to death of fishes.
4. Industries let out their industrial waste into the river bodies, which results In the mass mortality of fish.
5. Extremely hot water is let down into the water bodies in the areas which are close to the thermal power plants.
6. Fishes cannot withstand such high temperatures leading to mass mortality.
7. Oil spills also cause the mortality of fish.
8. Pesticides after being sprayed on the crops, the discharge water is directly let into the water bodies which are harmful to fishes.