Despite the island's long coastline, fishing is relatively undeveloped as an industry in Madagascar. On the east coast, with its stormy seas and absence of harbors, fishing is restricted mainly to the coastal lagoons and has been aptly characterized as virtually an extension of inland freshwater fishing. In the northwest, sardine and tuna are caught, and dried fish find a ready market. Dried fish also are prepared in the southwest. Lobsters, prawns, and shrimps are exported. Commercial maritime fishing is carried out by four joint-venture companies that operate along the northwest coast and account for most exports. The catch in 2000 was estimated at 132,093 tons, of which 30,000 tons were caught in inland waters. Vessels from European Union nations are allowed to take up to 11,000 tons of tuna and prawns a year. French investment has helped establish a tuna cannery.