BIOLOGÍA Y PESQUERÍA DE CUATRO ESPECIES DE INVERTEBRADOS MARINOS DE IMPORTANCIA COMERCIAL. REGIÓN TUMBES, II ETAPA -2007 THE BIOLOGY AND FISHERY OF FOUR SPECIES OF COMMERCIALLY IMPORTANT MARINE INVERTEBRATES IN TUMBES REGION, II STAGE - 2007

Ordinola E, Aleman S, Montero P . 2013. The Biology and fishery of four species of commercially important marine invertebrates in the Tumbes Region, II Stage - 2007. Inf Inst Mar Peru. 40(3-4): 254-273.- The Regional Office of IMARPE Tumbes, in 2007 performed the second phase of the biological and fishing study of lobster Panulirus gracilis, oyster Ostrea iridescens , mangrove crab Ucides occidentalis and black shell Anadara tuberculosa. The landing of these species was 432.9 t, constituting 75% of marine invertebrates extracted in this region. 11 species were recorded (8 mollusks, 2 arthropods and 1 echinoderm) related to their catch. The mangrove crab catches reported the largest 220.5 t. The distribution center The Tumpis recorded the highest landings with 191.7 t (44.28%), predominantly oysters, following Villar with 119.3 t (27.56%). The highest total annual CPUE for the oyster was 48.5 kg/trip, followed by striped shell 16.7 kg/task and mangrove crab with 9.1 kg/task. It reported 70% of specimens of black shell below the legal minimum size of extraction (TME) (45 mm in length valvar), and 18% of mangrove crab (65 mm CA).