SUMMARY

Taiwanese longline catch and effort statistics by using Generalized Liner Model (GLM) procedure were carried out in present study. Factors as year, quarter, subarea, by-catch effects of bigeye tuna, yellowfin tuna, and swordfish were used to obtain the yearly standardized CPUE trend from 1967 to 2005. Quarterly standardized CPUE series from the 3rd quarter of 1967 to the 4th quarter of 2005 were also obtained by using quarter-series, subarea, by-catch effects of bigeye tuna, yellowfin tuna, and swordfish as factors of concern. CPUE, both yearly and quarterly, trends thus obtained indicated that the abundance in number of South Atlantic albacore declined from late-1960s to 1990 and leveled off up to 2003 and appeared an upward trend in 2004 and 2005. Quarterly trend, as compared to its respective yearly trend, often appeared a significant peak per year implied a consistent recruitment pattern of this resource. RÉSUMÉ La présente étude examine l’indice d’abondance standardisée du germon de l’Atlantique Sud, remontant de 1967 à 2005, sur la base des statistiques de prise et d’effort de la flottille palangrière du Taïpei chinois en ayant recours à la procédure du modèle linéaire généralisé (GLM). Les facteurs tels que année, trimestre, sous-zones, effets de prise accessoire du thon obèse, de l’albacore et de l’espado