You don't need a high level to help write an English composition, please ~

Nowadays, due to overfishing and global warming, the species and quantity of marine fish have been greatly reduced. Besides, the ocean is polluted, which makes it difficult for fish to find food. We can take some measures, such as releasing fry every spring and banning overfishing. In addition, the government should stop people from discharging pollutants into the sea. All these measures help to protect the living environment of animals and plants in the ocean.