Michał Nowak, Artur Klaczak, Paweł Szczerbik, Włodzimierz Popek
ABSTRACT. A total of 49 common gudgeon, Gobio gobio (L.), were examined for morphometric and meristic differences according to sex. Nuptial tubercles were found in all males collected in spring, as well as in a number of females. On the other hand, nuptial tubercles covered the whole head with opercles in males, but only on the top of the head in females. There were no significant differences regarding meristic traits. Specimens of both sexes were characterized by the formula: l.l. 40-44, sq1 6, sq2 4, D III 7, A III 6, (3)4-5(6,7) scales between the anus and anal fin origin. Males were highly significantly (P < 0.001) different from females with longer pectoral fins, deeper caudal peduncles, and longer V-A distances. The results obtained in the current work are discussed in the context of data from the literature.
Keywords: biometrics, Cyprinidae, Gobio gobio, morphometrics, sexual dimorphism
Przyjęto po recenzji 06.10.2010 r.