Princess parrotfish Scarus taeniopterus is one of the top three parrotfish species landed in the Caribbean, and the top Scarus species targeted in commercial fishing efforts; however, a paucity of information exists concerning basic life history information for Caribbean parrotfish species. Prior to this work, no comprehensive life history information existed in the literature for princess parrotfish. This study provides the first comprehensive documentation of age, growth, size/age at sexual maturity, and size/age at transition for a Caribbean Scarus species. Sampling of 759 fish occurred in Puerto Rico and the US Virgin Islands from October 2015 to February 2020. Females ranged from 50 to 250 mm total length (TL) and 0 to 7 years of age, males ranged from 159 to 314 mm TL and 2 to 11 years, and transitional fish ranged from 140 to 292 mm TL and 2 to 6 years. Previously unknown von Bertalanffy parameters (L_∞ = 301 and k = 0.316) and length at median sexual maturity (LM₅₀ = 119 mm TL), age at median sexual maturity (AM₅₀ = 1.5 years), length at median sexual transition (LS₅₀ = 223 mm TL), and age at median sexual transition (AS₅₀ = 4.2 years) will enable stock assessments and informed management for this Caribbean parrotfish.

公主鹦嘴鱼Scarus taeniopterus是降落在加勒比地区的三大鹦嘴鱼之一，也是商业捕鱼活动中最主要的Scarus物种。但是，关于加勒比鹦嘴鱼物种的基本生活史信息的信息很少。在进行这项工作之前，文献中不存在关于公主鹦鹉鱼的全面的生活史信息。这项研究提供了关于加勒比海疤痕的年龄，生长，性成熟时的大小/年龄以及过渡期的大小/年龄的第一份综合文献。物种。2015年10月至2020年2月在波多黎各和美属维尔京群岛采样了759条鱼。雌鱼的总长度（TL）为50至250毫米，年龄为0至7岁，雄鱼的总长度为159至314 mm和2到11年，过渡鱼类从TL的140到292 mm和2到6年不等。先前未知贝塔朗菲参数（大号_∞ = 301和ķ  = 0.316），并在中位数性成熟长度（LM ₅₀  =119毫米TL），年龄中位数性成熟（AM ₅₀  = 1.5岁），长度在中间性过渡（LS ₅₀  = 223 mm TL）和中位性交年龄（AS ₅₀ = 4.2年）将能够对该加勒比鹦嘴鱼进行种群评估和知情管理。