Dr. Dulumoni Tamuly Key Note Speaker INFES- 2019

Dr. Dulumoni Tamuly

Department of Zoology, Hojai College, Hojai, Assam, India

Title of presentation: Mouth parts structure of the tadpoles Clinotarsus alticola (Boulenger, 1882) with notes on feeding habit

Abstract:

Oral structure of various developmental stages of C. alticola tadpoles in relation to feeding behaviour was studied with the help of light microscope (Olympus SZ51) and Scanning electron microscope (SEM). Development of mouthpart began at stage 25 (Gosner stage). There is ontogenetic variation in labial teeth rows of C. alticola. The labial teeth row formula (LTRF) i.e 5(3-5)/7(1) at stage 26 whereas, it is 7(3-7)/7(1) at stage 38. The arrangement pattern of the tooth rows are uniserial and tooth is keratinized and each keratinized labial tooth consists of cusp, neck and base region. The present study also revealed that C. alticola tadpoles are herbivorous in nature. The longer digestive tracts are correlated with mainly herbivorous diet. The tadpoles start feeding from stage 25 onwards. Food items consist of variety of algae, diatoms etc. Spores present in stage 25-29. Dominance of food items was highest in stage 41. Tadpoles feed randomly without any discrimination, on whatever is available in the particular water body where they grow up. There was notably no difference of food items between the different stages. The wide variety of food choices indicated that they are highly adapted to inhabit various types of habitat.

Biography

She did her M.SC from Gauhati University with Entomology as a special paper. In 2016, She completed her doctorate in ‘HABITAT ECOLOGY AND BIOLOGY OF ANURAN TADPOLES FROM DIFFERENT ECOSYSTEM IN CACHAR DISTRICT ASSAM, INDIA’ under Assam University Silchar. Her area of interest is ‘Herpetology and Ecotoxicology’. Presently she is working in Hojai College, deptt.of Zoology.