Se obtuvieron los contenidos estomacales de 50 especímenes (23 machos y 27 hembras). Para evaluar la dieta de esta especie y su variación en función del sexo y su condición reproductiva, se capturaron 60 especímenes durante siete muestreos estacionales utilizando trampas de agosto 2016 a agosto 2018 en un área adyacente a Bahía Magdalena, Baja California Sur, México. Key words: Reproductive seasonality feeding ecology Clupeidae GalatheidaeĮl verdillo Paralabrax nebulifer es un pez comercialmente importante en la costa occidental de Baja California Sur. The feeding strategy of the barred sand bass was that of a specialist carnivorous predator that fed mainly on the fish Sardinops sagax during the reproductive season, which supply the dietary nutritional requirements of the lipids HUFA (arachidonic acid, 20:4n-6 eicosapentaenoic acid, 20:5n-3 docosahexaenoic acid, 22:6n-3), nutrients required to achieve reproductive success. planipes for non-reproductive season (22.67%), and S. There were significant differences in the amount and type of prey consumed between types of reproductive season the species contributing the most to differences between seasons were Anchoa spp. The ANOSIM showed that there were significant differences in the amount and type of prey consumed by sex the SIMPER analysis revealed that the species contributing the most to differences between the sexes were S. According to the IRI, the South American pilchard Sardinops sagax and the red pelagic crab Pleuroncodes planipes were the prey that contributed the most (55%) to the barred sand bass diet. The Index of Relative Importance (IRI) was used to classify the main diet components, which comprised three fish species, seven crustacean species, and one mollusk species. Based on the gonadosomatic index, hepatosomatic index, and histological analyses, the reproductive season of the barred sand bass was corroborated for August 2016, April, August, and September 2017, and August 2018, and the non-reproductive season was corroborated for November 2016 and March 2018. Sex was diagnosed by direct observation of the gonads. The stomach contents of 50 specimens were obtained (23 males and 27 females). To assess the diet of this species and variations as a function of sex and reproductive condition, 60 specimens were captured using traps during seven seasonal sampling trips from August 2016 to August 2018 in an adjacent area to Magdalena Bay, Baja California Sur, Mexico. The barred sand bass Paralabrax nebulifer is a commercially important fish off the west coast of Baja California Sur.
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