Sarotherodon melanotheron (Ruppell) and Tilapia guineensis
(Bleeker) are two dominant cichlids in Badagry and Lagos Lagoon,
South-western Nigeria. Comparative racial studies were investigated among these species using multivariate analysis of nine morphometric characters and nine meristic counts of 100 specimens each. The results showed that they were phenotypically separable
populations of the same species with some level of divergence in morphometric characters. The data were analysed using independent
sample t-test after allometric test revealed significant differences (p
< 0.05) in body depth, caudal peduncle depth, and number of gill
rakers in Sarotherodon melanotheron while vertebrae, caudal peduncle depth and right gill raker in Tilapia guineensis
which were suggested to have occurred as a result of environmental fluctuations, genetic diversity and difference in salinity in the two water bodies. [Kuton MP, Adeniyi BT (2014) Morphological variations of Tilapia guineensis (Bleeker 1862) and Sarotherodon melanotheron (Ruppell1852) (Pisces: Cichlidea) from Badagry and Lagos lagoon, South-West, Nigeria].
Last date updated on September, 2024
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