Given the question: Oreochromis macrochir - Oreochromis macrochir the Longfin tilapia is a species of cichlid native to the Zambezi Basin and is also found in Lake Mweru and Lake Bangweulu. It has been used extensively for stocking ponds and dams in other parts of southern Africa but is little-used elsewhere.In Lake Mweru it is economically the most important fish. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
The answer is:
Animal