WorldFish is an international, nonprofit research organization that harnesses the potential of fisheries and aquaculture to reduce hunger and poverty. Our publications database contains WorldFish publications and references to WorldFish research published in refereed journals and periodicals.

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Tropical reservoirs (man-made lakes) have evened out somewhat the distribution of standing waters on a global scale. Natural lakes are well represented in the North Temperate and Arctic regions. In the tropics, the only region with a sizeable lake area is the rift valley region of East Africa. Man's reservoir building activities have created the potential for a rich source of cheap fish protein. This potential is best realized when lacustrine tilapias from Africa are present.