The culture of striped mullet ( Mugil cephalus Linnaeus) in ponds receiving heated effluent from a power plant

Abstract

During 1972 and 1973, striped mullet ( Mugil cephalus Linnaeus) were stocked into six ponds (located on the upper end of the Galveston Bay system, Texas, U.S.A.) receiving heated effluent. Fish were fed commercially prepared feeds. In 1972, mean daily weight and standard length gains in two ponds were 0.71 and 0.66 g and 0.65 and 0.59 mm. In 1973, mean daily weight and standard length gains in four ponds were 0.64, 0.36, 0.67, and 0.59 g and 1.03, 0.81, 0.71, and 0.67 mm. During the two year study, survival rates ranged from 50 to 85%; production, from 293 to 804 kg/ha. Food conversion fluctuated from 2.24 to 3.31; commercial feed costs, from $0.61 to $0.87 per kg of fish.