A comparison of growth, survival rate, and number of marketable fish produced of swordtails, Xiphophorus helleri Heckel (Family Poeciliidae), between two types of culture systems

acuicultura aquaculture carga ganadera crecimiento croissance gestion growth management ornamental fishes peces ornamentales peso poids poisson ornemental sex ratio stocking density supervivencia survie survival taux de charge weight