Size and shape analysis of two close Cyprinidae species (Garra variabilis-Garra rufa) by geometric morphometric methods

Abstract

In this study, the differences between C. macrostomus and C. kais species that are similar to each other were investigated in terms of their size (CS) and shape by landmark-based geometric morphometric methods. There was no difference in size between the two species. However, the difference was significant between them in shape. The head of C. macrostomus is longer in height while its dorsal fin is located a bit forward and caudal peduncle is wider compared to C. kais. On the other hand, the body depth of C. kais is greater and its lateral line end is shorter. Considering the geometric morphometric differences, these two species can be identified and distinguished easily.