SRAC 0283: Tilapia: Life History and Biology
https://srac.tamu.edu/fact-sheets/serve/53

Reproduction In all Oreochromis species the male excavates a nest in the pond bottom (generally in water shallower than 3 feet) and mates with several females. After a short mating ritual the female spawns in the nest (about two to four eggs per gram of brood female), the male fertilizes the eggs, and she then holds and incubates the eggs in her mouth (buccal cavity) until they hatch. Fry remain in the females mouth through yolk sac absorption and often seek refuge in her mouth for several days after they begin to feed.
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Tilapia have a higher early survival rate than LMB, BG etc. because of above parental reproductive method.

Last edited by ewest; 05/28/24 12:38 PM.