Explanation

Sustainable fishing practices help conserve fish populations by catching only what the ocean can replace naturally. These practices include setting catch limits, using selective nets, and protecting breeding areas. Fishermen take only enough fish to allow populations to recover and grow.

Conservation means using natural resources wisely so they last for future generations. Sustainable fishing ensures there will always be fish in the ocean. It balances human needs with protecting the ecosystem and keeping it healthy.

Cutting down trees, introducing invasive species, and overusing fertilizers all harm ecosystems rather than conserve them. These activities destroy habitats, reduce biodiversity, and pollute the environment. Conservation does the opposite by protecting and maintaining natural resources.