niloticus l. (pisces: cichlidae) in lake tana, ethiopia - African Journals ...

2 downloads 37 Views 690KB Size Report
Elizabeth Kebede, Zinabu G/Mariam and Ahlgren, I.. (1994). ... Nagelkerlce, L.A.J., Mina, M.V., Tesfaye Wudneh, Sibbing, EA. and Osse,. J.W.M. (l995a). In LakeĀ ...