Laboratory Rearing Of The Common Snook

Culturability of snook (Centropomus undecimalis) was evaluated in laboratory studies during the summers of 1975-1977. This is the first report of snook being reared from artificially fertilized eggs. No snook survived longer than II days in the 1975 experiments, although about 50 and 250 were reared through metamorphosis and beyond in the experiments of 1976 and 1977, respectively. These snook were reared in closed saltwater rearing systems for 14-16 days, after which they were converted to fresh water and stocked in 0.01 ha ponds. In our studies, snook were not cannibalistic at sizes less than 20 mm TL; withstood low overnight dissolved oxygen concentrations of less than 1.0 ppm; and could be converted to fresh water at 15 days ofage. Snook 15 days and older are relatively hardy, and if procedures could be developed to rear them to this age in large numbers, culture of fingerling snook could become a routine matter.

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