Why do many fishermen support efforts to protect and restore mangrove forests?

The reason why many fishermen support efforts to protect and restore mangrove forests is because many fish breed in mangrove forests. These types of forests are quite important because they contain a strong ecosystem within them, which are also relevant for these fishermen who want to catch those fish that can only be found in mangrove forests. This is why they want to preserve them as much as they can.