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Total landings of small pelagic fishes in Bahia Magdalena during 2011 were 62,141 mt, and 709 fishing trips were carried out. The Pacific sardine, Sardinops sagax, caught in this year was 54,729 mt and represented 88.1% of the total catch. Other species landed were Opisthonema sp (8.2%), Etrumeus teres (1.4%), Scomber japonicus (0.6%), Cetengraulis mysticetus (0.5%), and mixture of species (1.3%). The Pacific sardine was caught throughout the year, with a peak in April (8,476 mt) and a minimum in December (2,281 mt), but 67% was recorded from March to August. Landings of Pacific sardine in 2011 doesn't show the typical pattern this fishing area, as catches in May and June were lower than the average monthly catch for Bahia Magdalena. Sizes of S. sagax varied between 135 to 205 mm SL, but the bulk (65 %) was among 175 to 190 mm SL and practically all the sardines caught were above the minimum legal size. Six age groups were found (0-5), being the groups 2 (47%) and 1 (30%) the most abundant. The maturity cycle of the Pacific sardine during 2011 don't showed the typical pattern of the reproductive cycle for Bahia Magdalena, where usually the maximum occurs between February to August. Practically throughout year sardines in reproductive activity were found, specially en the second half of the year. In previous years, the 2nd half of the year the reproductive activity was minimum. From January to August of 2012; 43,130 mt of small pelagic fishes has been caught in 549 fishing trips. Pacific sardine catch was 35,675 mt and represented 82.7% of total landings. Others species caught in these months were Opisthonema sp (6.0%), Etrumeus teres (7.1%), Cetengraulis mysticetus (0.1%), Scomber japonicus (0.6%) and mixture of species (1.3%). Size of Pacific sardine varied between 135-215 mm SL. Smallest sardines that the minimum legal size represented only 6.8%. Six age groups has been found (0-5) being the groups 2 (36%) and 1 (34%) the most abundant and compared with previous years, age groups 4 and 5 were relatively abundant. During January to February most of the sardines were in reproductive activity.

Palabras clave: Chaetognaths; sardine; small pelagic fishes

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