26 SEPTEMBER 2017 • WORLD AQUACULTURE • WWW.WAS.ORG point in the development of production technologies for other marine finfish species with commercial potential, such as Pacific white snook. Thus, the objective of this study was to apply the production technology developed between 2011 and 2014 for eight marine finfish species to the Pacific white snook, in an attempt to obtain good results quickly. Broodstock Husbandry and Spawning Induction In 2013, Pacific white snook broodstock (Fig. 2) ranging in size from 0.9-5 kg were captured off the coast of Sinaloa state, Mexico. Fish were held for three years in three cylindrical 50-m3 tanks (Fig. 1) under natural temperature and photoperiod conditions with a flow-through water system (four tank volumes per day) and strong aeration. Tanks were located in a pilot hatchery at CIAD-Unity Mazatlan (23° 18’ 0.6” N, 106° 28’ 57.2” W), Sinaloa, Mexico. Broodstock were fed a mixture of sardine, squid and shrimp once every other day at 3 percent of body weight. In December 2016, two females (7.7 ± 9.5 kg) and six males FIGURE 3. Recirculation aquaculture system for broodstock in the facility of the pilot hatchery at CIAD-Unity Mazatlan, Mexico. A B C D FIGURE 4. A) Broodstock canulation process, B) vitellogenic oocyte, C) hormonal induction and D) eggs collected from a single spawn of a Pacific white snook female.
RkJQdWJsaXNoZXIy MjExNDY=