Appearance
The blue tilapia is a freshwater fish with a high tolerance for brackish water. Adults are usually 5 to 8 in in length and weigh 5 to 6 lb ; the largest recorded specimen was more than 21 inches long and weighed more than 10 pounds . Blue tilapia are mouthbrooders, and broods range from 160 to 1600 eggs per female. ''O. aureus'' is primarily herbivorous, but will occasionally consume zooplankton; the young include small invertebrates in their diet.Naming
''Oreochromis aureus'' has been introduced in many places around the world for use as a food fish, and frequently in order to control aquatic vegetation. Its presence may have in many cases been mis-documented as ''Oreochromis niloticus'', because the two species were only recently distinguished.References:
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