Live Diets for Pacu Larvae Tested in Peru

摘要

The results of a study in Peru that evaluated three food sources for larval C. macropomum and P. bra-chypomus indicated that although Artemia are a more readily available and reliable larval food source, Moina sp. appear to be a cost-effective substitute for use in the Amazon Basin.Commercial fisheries in the Amazon region have increased drastically in the last decade, and signs of overfishing of the most prominent fish species are apparent. Through concerted efforts by several Amazon institutions, particularly in Brazil and Peru,and foreign organizations, small- and large-scale fish culture now supplies part of the demand for most of these commercial species and helps preserve the fisheries. Colossoma macropomum, commonly called black pacu in English, gami-tana in Peru, and tambaqui in Brazil; and Piaractus brachypomus, red pacu in English, paco in Peru, and pira-pitinga in Brazil, have excellent flesh quality, fast growth, and low protein requirements that make them suitable for aquaculture. As a consequence, fingerling demand for the fish has increased. Fingerling production in the Amazon must address the limited knowledge of alternative local food sources for larval and postlarval fish stages.