The rate at which the fishes are threatened. |
Commercial fishing is done by people on a large scale. They catch huge amount of fish by going in the deep seas. They use deep sea trawler that have refrigerator facility and the latest mechanised methods are used. They stay for 5-10 days on the sea. During this time many damages to the marine life is done. Industies and people are also taking steps that cause damage to the fish species. Some of those follow:
- The ships they use cause noise and vibration killing and disturbing the fish species beneath it.
- The nets they use catch alot of fish. In that some unwanted specie are caught which are later wasted.
- Some nets even catch baby fish which seriously disturbs the reproduction of the fish.
- Oil spillage also causes damage to the fish.
- Industrial, domestic and agricultural waste which finally comes into the seas also causes damage to fish. (Plastic bags have been the cause to the death of many fishes)
- Cutting down of mongroves for the construction of building destroy the place where fish lay their eggs. This reduces the rate of reproduction thus leading a specie to become endangered.
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