The vermilion rockfish complex consists of two distinct species, vermilion rockfish (Sebastes miniatus) and sunset rockfish (S. crocotulus) with clear haplotypic differences. Due to a one-way mitochondrial introgression from vermilion into sunset rockfish a high proportion (20–30%) of fish with a vermilion haplotype are characterized as sunset based on nuclear genotype (introgressed sunset, hereafter, introgressed). Here we examined differences in the distribution and biological attributes of vermilion and sunset rockfish (including introgressed individuals) collected during a fisheries independent groundfish survey conducted with hook and line gear in the Southern California Bight in 2014. We saw significant differences in spatial distribution (latitude, depth, and distance from the nearest port and mainland) and biological characteristics (average size, size frequency distribution, weight-length and size-depth relationships) between vermilion rockfish and both introgressed and sunset rockfish but no differences between sunset and introgressed fish. Our analyses established that introgressed and sunset rockfishes shared similar biological and geographic characteristics, with no significant differences based on the features we examined. Consequently, we explored the relationship between the catch of vermilion rockfish collected per site, relative to the combined presence of vermilion, introgressed and sunset rockfishes, and a suite of co-located environmental and geographic variables using binomial generalized additive models (GAMS). The best model explained 95.0% of the deviance, indicating that the occurrence of vermilion, introgressed, and sunset rockfishes depended on latitude, longitude, depth, dissolved oxygen, temperature and distance from port.

朱红色岩鱼复合体由两个不同的物种组成，朱红色岩鱼 ( Sebastes miniatus ) 和日落岩鱼 ( S. crocotulus) 具有明显的单倍型差异。由于从朱红色到日落岩鱼的单向线粒体基因渗入，具有朱红色单倍型的鱼的高比例（20-30％）被表征为基于核基因型的日落（渗入日落，此后，渗入）。在这里，我们检查了 2014 年在南加州湾使用钩线装置进行的渔业独立底层鱼类调查期间收集的朱红色和日落岩鱼（包括渗入个体）的分布和生物学属性的差异。我们看到空间分布（纬度）的显着差异、深度和与最近港口和大陆的距离）和生物特征（平均大小、大小频率分布、朱红色岩鱼与渗入岩鱼和日落岩鱼之间的重量-长度和大小-深度关系），但日落鱼和渗入岩鱼之间没有差异。我们的分析确定渗入和落日岩鱼具有相似的生物学和地理特征，根据我们检查的特征没有显着差异。因此，我们使用二项式广义加法模型 (GAMS) 探讨了每个地点收集的朱红色岩鱼的捕获量与朱红色、渗入和日落岩鱼的组合存在之间的关系，以及一套共同定位的环境和地理变量。最佳模型解释了95.0%的偏差，表明朱红色、渐渗和日落石鱼的出现取决于纬度、经度、深度、溶解氧、