The province has a long coastline totaling to 141.67 km. as a fishery resource. Its vast marine waters are a migratory path of tuna and other pelagic fish species. In spite of the potential resource, and the considerably good enough production of marine fishes, still the province is deficient in fish supply.
Fishing is a major industry with a sizeable number of the population engaged into it. This is so, as 18 of the 34 municipalities of the province are located along the coast.
On commercial waters, the province has a total of 1,500 hectares of which 25.50 hectares are lakes, 1,285.76 are rivers, 133.95 are creeks, 140 are dams and 48.74 belong to other areas.
On brackishwater and aquaculture production there is an area of 369.435 hectares for brackishwater fishing. An area of 177.80 hectares is devoted to freshwater fishing.
On municipal fishing, there is a total of 5,420 for both motorized and non- motorized bancas with a total of 8,239 operators. Fishing methods/gears used are gill nets, beach seines, long lines, hook and line and cast nets. Species of fish caught are siganid, flying fish, swordfish, lapu-lapu and talakitok. Payaos or artificial fish shelters are established to attract fishes so as to increase the fish production. At present, there are 308 existing payaos in the province.
On commercial fishing, there are two (2) commercial boats operating in the province. There are two commercial fishing gears with an aggrerate tonnage of 10 MT. Using the ring net, species of fish caught are tuna, round scad, red eye scad. There are also five lambaklads located in Sta. Cruz, Sta. Lucia (2), Santa, and Vigan City.
The total estimated production on fishery is 15,850.00 metric tons valued at PhP2,377,500.00.
The total fishfarmers in the province is estimated at 8,557.