Ashraf Jazayeri; Forogh Papahn; Asma Hatami
Abstract
Pelophylax ridibundus is the only species of Pelophylax, distributed in almost all parts of Iran. The present study was carried out in 3 wetland stations of Aleshtar ( Lorestan province) with the aim of studying morphology, morphometric , characteristics of reproductive, karyology and histology of skin, ...
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Pelophylax ridibundus is the only species of Pelophylax, distributed in almost all parts of Iran. The present study was carried out in 3 wetland stations of Aleshtar ( Lorestan province) with the aim of studying morphology, morphometric , characteristics of reproductive, karyology and histology of skin, 160 samples were studied. A total of 3 morph were identified. In the analysis of traits, the two sexes did not differ significantly in terms of weight and thigh diameter, while they differed in total length traits. The highest reproductive index was measured in both sexes in spring. In addition the maximal weight for males was 64.12 gr and for females it was 92.9 gr. The chromosomal number of the species was 2n= 26 in the studied regions, in addition to the sex heteromorphy chromosomes. The structure of the skin at all stations was similar and consisted of two layers of epidermis and dermal, in the dermal sponge layer in both sexes, the mucus and granular glands were observed, and the abdominal skin was distinguished by the thinning of collagen fibers from the dorsal skin.
