To cite this article: Ayoade, F.O., Oguntunji, A.O., Alabi, O.M., Oladejo, O.A., Oriye, T.O. and Adeniyi, O.A., 2026. Morphometric differentiation among Clarias gariepinus, Heterobranchus longifilis, and their hybrid (Heteroclarias) using principal component analysis. Punjab Univ. J. Zool., 41(2): 149-161. https://dx.doi.org/10.17582/journal.pujz/2026/41.2.149.161