The worldwide decrease in fishery stocks in recent years is related to the degradation of coastal environments and to the increases in capture effort and extreme natural events. Restocking dilapidated populations with artificial hatchery-reared larvae has arisen in recent years as a viable technique for the reparation and maintenance of stocks of commercially exploited species. One of the first steps in larvae cultivation is the evaluation of an appropriate diet for rearing. We aimed to test viable diets for feeding zoea larvae of the crab Menippe nodifrons and the swimming crab Callinectes danae. We tested five live food treatments, three microalgae (Tetraselmis gracilis, Chaetoceros calcitrans, and Thalassiosira weissflogii), the rotifer Brachionus plicatilis, and Artemia sp. nauplii. The most suitable feeding protocol for rearing M. nodifrons larvae was a combined diet of enriched B. plicatilis up to the zoea III instar with the introduction of hatched Artemia sp. nauplii onwards to the megalopa stage. Larvae of C. danae showed high mortality rates and none achieved the zoea III phase on any of the diets tested. Although our results for C. danae rearing were not conclusive, the data provide additional information on improper rearing diets for this species for future research. Future studies testing other food sources are necessary to improve larvae production.

近年来，世界范围内渔业资源的减少与沿海环境的恶化以及捕捞努力和极端自然事件的增加有关。近年来，已经出现了用人工孵化场饲养的幼虫补给残存的种群的方法，作为一种可行的技术，用于补偿和维持商业开发物种的种群。幼虫养殖的第一步之一是评估合适的饲养饮食。我们的目的是测试可行的饲料，以喂食蟹美耐地di的zoea幼虫和游动蟹Callinectes danae。我们测试了五种活食品处理，三种微藻类（Tetraselmis gracilis，Chaetoceros calcitrans和Thalassiosira weissflogii），轮虫Brachionus plicatilis和Artemia sp。无节幼体。最适合饲养诺登分支线虫幼虫的喂食方案是在孵化后的Artemia sp。的引入下，将浓缩的B. plicatilis饮食直至zoea III龄。无节幼体到半生不熟阶段。C. danae的幼虫显示出高死亡率，并且在任何测试日粮中均未达到zoea III期。虽然我们的结果为C. danae饲养尚无定论，该数据提供了有关该物种不适当的饲养方式的更多信息，以供将来研究。未来测试其他食物来源的研究对于提高幼虫的产量是必要的。