A large-scale experiment on production of sand goby fry was conducted for one annual cycle at Nong-Sua Fisheries Station in Thailand. Approximately 1000 egg nests containing 25 million eggs were collected from January through October from artificial substrates. The hatching rate of fertilized eggs was approximately 80%. Fry were reared in two stages. In stage 1, the newly developed fry, with average total body length of 4 mm and mouth size opening of approx. 0.1 mm, were first fed with a combination of chicken-egg slurry and live rotifers. The survival rate for this stage ranged from 7 to 55%, with an average of 20% among batches of egg nests collected during the year. Older stage 2 fry were fed with live Moina sp., chironomid larvae, and ground raw fish from days 30 to 60. Stage 2 survival rates ranged from 60 to 99% and length increased from 2.4 to 3.8 cm. Growth rate was inversely related to stocking density at this stage. A total of 147 300 juvenile fish was produced in the l-year effort.
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