TY - BOOK AU - Mtaki,Kulwa TI - Percentage male fingerling, growth and survival rate of nile tilapia (oreochromis niloticus, linnaeus 1958) females crossed with Rufiji tilapia (oreochromis urolepis, norman 1922) males hybrids readed at different salinities AV - THS EAF SH167.T54M7662 PY - 2015/// CY - Dar es Salaam PB - University of Dar es Salaam KW - Tilapia N1 - Includes bibliographical and references Thesis: M.Sc. (Marine Science)- University of Dar es Salaam ER -