Peru - Fishing. Commercial deep-sea fishing off of Peru's coastal belt of over 3,000 km (1,860 mi), is a major enterprise. Peruvian waters normally abound with marketable fish: bonito, mackerel, drum, sea bass, tuna, swordfish, anchoveta, herring, shad, skipjack, yellowfin, pompano, and shark. More than 50 species are caught commercially.