INIDEP Informe Técnico, 7: 21-68.

INIDEP Informe Técnico, 7: 21-68.

Bambill, G.; Perez, M.; Renzi, M.A.; Dato, C.; Wöhler, O.C.; Cañete, G.R.; Bezzi, S.I. 1996. Evaluación de merluza (Merluccius hubbsi) en la plataforma argentina, entre 34°S y 48°S, en agosto y setiembre de 1993.
INIDEP Informe Técnico, 7: 21-68.

This report contains the results of a hake assessment survey carried out by the R/Vs “Dr. E.L. Holmberg” and “Cap. Oca Balda” in the Argentine Sea between 34°S and 48°S, from August 27 to September 30, 1993. The objectives of this survey were: 1)to estimate the total biomass, total and age abundance; 2)to define the size and age composition; and 3)to define the size composition of the by-catch. Hake biomass was estimated in 1,989,000 Tonnes, with a confidence interval of ±18 % and a confidence coefficient of 95%. Most of the biomass corresponded to the area between 41°S and 48°S. It was estimated in 1,836,000 Tonnes and it represented the 92% of total biomass. The biomass of the area between 34°S and 41°S only reached 153.000 Tonnes (8%). Biomass percentage of the “Argentine – Uruguayan Fishing Common Zone” was of 3,5% (71,000 Tonnes). Highest concentrations were found between 41°S and 48°S. The average densities were 2,7 Tonnes/nm² and 18,8 Tonnes/nm² for the 34°S -41°S areas, respectively.