UPDATED STANDARDIZED CATCH RATES FOR SOUTH ATLANTIC STOCK OF SWORDFISH (Xiphias gladius) FROM THE SPANISH LONGLINE FLEET FOR THE PERIOD 1989-2019

Abstract

Updated standardized catch rates in number and in weight were obtained using General Linear Modeling (GLM) procedures from trips carried out by the Spanish surface longline fleet targeting swordfish in the South Atlantic stock during the period 1989-2019. The criteria used to define factors were similar to those used in previous contributions. The results explained 65% and 71% of CPUE variability in number and weight, respectively, pointing to very stable standardized CPUE and mean weight trends over time. The statistical diagnoses were highly satisfactory

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