Morphologic, Morphometric, Histologic and Histometric survey of marsh frog (Pelophylax ridibundus Pallas, 1771 (Rana ridibunda)) in Ahvaz (warm region) in comparison with Shahrekord (Cold region)

Document Type : Biology(Animal)

Authors

1 Department of Biology ,University of Shahid Chamran, Ahvaz, Iran

2 Department of biology, Faculty of sciences Ferdowsi University of Mashhad, Mashhad, Iran.

Abstract

Amphibians are a group of vertebrate animals that be able to live in both aquatic and terrestrial environments and they are very important in the balance of ecosystems. In this study, we tried to identify Ahvaz and Shahrekord frogs, as well biosystematic survey about them. Hence, in the spring of 2011, 30 male and female frogs in each region were caught using hand nets. The live samples were transported to the laboratory, after identification of frogs, morphological, morphometric, histologic and histometrical measurement were done. Biometric characters survey showed that the average size of male and female frogs in cool region is higher than the warm region (Ahvaz) (p<0.05). The results showed that the average thickness of the skin, the epidermal and dermal thickness of abdominal part in male and female frogs of cool area was more than the warm region and the average thickness of the skin of the dorsal and ventral parts of the body in male and female frogs had no significant difference in each region (p<0.05). In addition, the average number of dorsal and ventral skin mucus glands of male and female frogs belong to the cold region was more than warm region (p<0.05).
 

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