Marine Invertebrates of commercial interest at North of San Jorge Gulf, Patagonia, Argentina

Dataset with occurrence, abundance and biomass of volutid snails (2 species) and infaunal and epibenthic bivalves (5 species) of commercial interest for the artisanal fisheries at the North region of the San Jorge Gulf, Patagonia. Survey carried out in 1999 by expert researchers of Research Council of Argentina, commissioned by the provincial administration to identify areas with biomass of invertebrates with potential for commercial capture. The data were stored in digital support by the Fishing Agency of Chubut Province, Argentina.