PEMIJAHAN IKAN BETUTU, Oxyeleotris marmorata (BLKR.), DI KOLAM TANAH DAN KOLAM BETON Breeding of Sand Goby, Oxyeleotris marmorata (Blkr'), Broodstock in Earthen and Concrete Pond

Anexperiment to asses breeding performance of sand goby was conducted in earthen and concrete pond. Broodstock (125 - 500 g per fish) of similar levels at maturing were fed trash fish 7% of biomass everyday. In the rainy season, sand goby, Oxyeleotris marmorata (Blkr.), spawned 31 and 30 times per month producing an average of 38.300 and 36.855 eggs per nest, respectively. In the dry sesason, howeve only fish in earthen ond bred 36 times per month with an average of 39.170 eggs per nest.