A proposal methodology to assess the Patagonian toothfish stock abundance at CCAMLR Subarea 48.3 using ASPM

The ASPM is an integrated modeling technique used in stock assessment of different D. eleginoides fisheries (Prince Edward Islands and Patagonian Shelf) and allows fitting to many different information sources, such as catch and age and size data from fishing fleet, surveys and others abundance indexes. Last results obtained from ASPM model used to assess the D. eleginoides biomass at CCAMLR Subarea 48.3 shows an acceptable fit to CPUE series and catch-length-proportions (WG-FSA-SAM 05/5 and WG-FSA-05/73). In this paper the methodology and assumptions for the 2006 TOP assessment at CCAMLR Subarea 48.3 using ASPM are presented.