Updated standardized catch rates of swordfish (Xiphias gladius) caught by the Spanish surface longline fleet in the Indian ocean during the 2001-2018 period

Standardized catch rates of the Spanish surface longline fleet targeting swordfish are provided for the period 2001-2018. Generalized Linear Models (GLM) log-normal were used to update standardized catch rates in number of fish and in weight. Factors such as area, quarter, gear and bait, as well as the fishing strategy (based on the ratio between the most prevalent species and that appreciated most by skippers) were taken into account. The model explained 54% and 57% of CPUE variability in number and weight, respectively