Contribuição para o estudo das espécies Penaeus monodon, Penaeus iaponicu s e Penaeus latisulcatus, no Banco de Sofala

Abstract

The present study was carried out on the basis of data collected at the Sofala Bank. between January and February 1992. aiming at the biological characterization and estimation of the biomass of the species Penaeus monodon , Penaeus iaponicus and Penaeus latisulcatus . For this purpose, the study area was divided into six sub-areas, namely, A.B.C.D.E and F. Their results show that more females were captured as they reach the size of the first capture faster than males. The distribution of females by maturity stage showed that most females had reached the maturity stage or spawned. The study of morph and allometric relationships allowed us to observe that the correlation between total weight and total length, in females, from a certain stage of sexual maturation onwards, is influenced by the weight of the gonads. The species P. monodon was the most represented in area B. between 5-15 meters deep, while the other species. P. iaponicus and P. latisulcatus, showed higher yields in the E. area between 25-35 and 35-45 meters. In these areas and depths, the greatest biomass of these same species was estimated as yields are an index of stock. (TRADUÇÃO NOSSA)