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Masoumeh Najibzadeh

Masoumeh Najibzadeh

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0002-2139-4833
Education: PhD.
ScopusId: 57038888600
HIndex:
Faculty: Science
Address: Arak University
Phone: 0863267226

Research

Title
Embryonic and Larval Development of Pelophylax bedriagae (Amphibia, Anura), in Iran
Type
Presentation
Keywords
development, larval stages, Pelophylax bedriagae, temperatures
Year
2018
Researchers Alireza Pesarakloo ، Masoumeh Najibzadeh

Abstract

Abstract : We studied the development and morphology of different larval stages of Pelophylax bedriagae at two rearing temperatures (20 and 24°C). Eggs collected from a breeding site in south-western Iran. Diagnostic morphological characters are provided for Gosner (1960) larval stages 1-46. The larvae hatched about seven days after egg deposition. Principal diagnostic feature including the formation of the funnel-shaped oral disc became discernible about ten days after hatch at Gosner stage 21 and degenerated at Gosner stage 42. Larvae developed faster at higher temperatures. The largest body length of larval P. bedriagae measured about 54mm in 70 days after egg deposition. Based on our results, the longest metamorphosis time was observed on temperature (20°C) whilst the shortest metamorphosis time occurred on temperature (24°C). Compared with the majority of other Palearctic Anurans, it appears that embryonic and larval development is usually slow rapid in P. bedriagae.