paolo only uses gillnets.mesh of these nets is large enough that baby fish can't get caught in them. years ago paolo noticed that his catch was getting ever smaller. and he realized that fish are not a limitless resource. >> tourists come in the summer and only see the beautiful side of the sea. but the sea has a problem. in our consumer culture, 90% of the products we use wind up in the sea -- solvents and detergents harm not only the environment but people, too. they develop more and more allergies. >> but fanciulli is also fighting against the use of drift- and trawl nets. they're actually illegal in the eu. but in italy alone, thousands of dolphins die each year after becoming caught in these tightly meshed nets. >> i've been fighting this illegal fishing since 1986, but even today fisherman continue to destroy the seabed. heavy chains attached to the trawl nets sweep away and destroy the seabed, and destroying what deprives the fish of their habitat. this. they don't know what kind of fish is on the marke