UPDATED STANDARDIZED AGE SPECIFIC ALBACORE, THUNNUS ALALUNGA, CATCH RATES FROM THE SPANISH TROLL FISHERY IN THE NORTHEAST ATLANTIC: 1981 to 2008

Relative abundance indices by age group of albacore (Thunnus alalunga) caught by the Spanish troll fleet in the North Eastern Atlantic were estimated using catch in number of fish and effort data from 7,195 individual trips collected for the period 1981-2008. Standardized CPUE S for age groups 1 to 3 albacore were estimated separately through a General Linear Modelling approach by applying the log-normal error distribution model.