Symposium on Culture of Exotic Fishes; (proceedings) - Presented at Aquaculture, Atlanta, '78

animal introduction aquatic weeds calidad del agua carp carpa carpe eua fertilisation fertilizer application fish culture fish ponds fisheries fishery production introduction d'animaux mauvaise herbe aquatique ornamental fishes peces ornamentales pesca piscicultura pisciculture poisson ornemental production data production halieutique recherche research tilapia usa water quality