Feeding habits of common dolphinfish (Coryphaena hippurus) were investigated in the Southeast Pacific Ocean using stomach content analysis. Stomachs were collected from 1506 individuals ranging between 18 and 187 cm in fork length. The fish were caught by longliner boats in 2009–2017. Based on percentage of wet weight (%W_i), percentage of number (%N_i), and frequency of occurrence (%O_i), flyingfishes were the predominant prey, followed by the cephalopods jumbo squid (Dosidicus gigas) and argonaut (Argonauta spp.). Permutational multivariate analysis of variance (PERMANOVA) detected significant differences between zones (p < 0.001). PERMANOVA also revealed two size-related shifts in feeding habits to occur at FL ~ 80 cm and FL ~ 110 cm (p < 0.001). Cumulative prey curves did not reach an asymptote in any of the zones and size classes, which may be attributed to the fine taxonomic resolution used. Spatial variations in daily meal ranged between 296.3 and 438.9 g day⁻¹, corresponding to daily ration of 6.1–8.2% body mass BM day⁻¹. Otherwise, size-related variations in both DM and DR were observed. Thus, while daily food intake increased with size from 177.3 for the smallest fish (LF < 80 cm) to 496.7 g day⁻¹ for the largest ones (LF ≥ 110 cm), DR decreased from 13.0 ± 22.1 to 3.7 ± 0.7 BM day⁻¹. The present results contribute to improve the understanding of dolphinfish feeding habits in the Southeast Pacific Ocean.

使用胃含量分析研究了东南太平洋常见海豚 ( Coryphaena hippurus ) 的摄食习性。从叉长 18 到 187 厘米之间的 1506 个人中收集了胃。这条鱼在 2009-2017 年被延绳钓船捕获。根据湿重百分比 (%W _i )、数量百分比 (%N _i ) 和出现频率 (%O _i )，飞鱼是主要的猎物，其次是头足类巨型鱿鱼 ( Dosidicus gigas ) 和刺尾鱼 ( Argonauta spp。）。置换多元方差分析 (PERMANOVA) 检测到区域之间的显着差异 ( p < 0.001)。PERMANOVA 还揭示了在 FL ~ 80 cm 和 FL ~ 110 cm ( p  < 0.001)发生的两种与大小相关的摄食习惯变化。累积猎物曲线在任何区域和大小类别中都没有达到渐近线，这可能归因于使用的精细分类分辨率。每日膳食的空间变化范围在 296.3 和 438.9 g day ^-1之间，对应于 6.1-8.2% 体重 BM day ^-1的每日定量。否则，观察到 DM 和 DR 中与尺寸相关的变化。因此，虽然每日食物摄入量从最小鱼（LF < 80 cm）的 177.3 增加到最大鱼（LF ≥ 110 cm）的 496.7 g day ^-1，但 DR 从 13.0 ± 22.1 减少到 3.7 ± 0.7 BM day ^-1. 目前的结果有助于提高对东南太平洋海豚摄食习性的了解。