Successful hormone-induced ovulation and artificial spawning of Gulf of Mexico sturgeon from the Suwannee River, Florida, with pituitary extract of common carp (Cyprinus carpio) was accomplished at two sites during spring 1989. Eggs were surgically removed from two fish weighing approximately 68 kg each. Two males, 18.3 and 19.3 kg, were used to fertilize the eggs of one female, and three males, 25.1, 25.9, and 26.2 kg, were used to fertilize the eggs of the second. Eggs were hatched on site in vertical tray incubators and McDonald hatching jars. Approximately 5,000 1 -d-old fry were produced from one female; however, the fry failed to accept an artificial diet, and all but two died within 3 weeks of hatching. Over 3,000 fry were produced from the second female, and 60 17-d-old fry were stocked in the Suwannee River, Florida. The remaining fry did not actively feed and died within 21 d of hatch.
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Parauka et al. (1991) studied this question.