OPEN JOURNAL OF OCEAN AND COASTAL SCIENCES Volume 1, Number 1, October 2014 OPEN JOURNAL OF OCEAN AND COASTAL SCIENCES Nesting Ridleys Need Critical Protection and Its High Nest Successes at Devi Coast Odisha Behera S. K. 1*, Kar C. S.2, K. Sivakumar3 and Choudhury B. C.3 1 Integrated Coastal Zone Management Unit Berhampur, Odisha, India. 2 Department of Forest and Environment, Bhubaneswar, Odisha, India. 3 Wildlife Institute of India, Chandrabani, #18 Dehradun, Uttrakhanda, India. *Corresponding author:
[email protected] Abstract: Olive Ridleys sea turtle are known to nests both enmass and solitary in the south sand spit of River Devi, Odisha. After 1999 enmass nesting, only solitary activity is observed in this part of beach. This study was done to evaluate the nesting activity along Devi coast for period of four years, 2006-10 and hatchling successes of Olive Ridley solitary nests in one of the island where no human habitation is present was carried out from December 2008 to May 2010, in total 7642 numbers of nests was recorded within four years of which 5058 nest were from the main land beach and rest 2584 from island beach. A total of 309, nests were marked with a pole and monitored for hatchling successes. It was calculated, 94% of eggs were hatched successfully, and 91% of hatchling emerged out successfully. This study shows that nest located between 20 to 40 m distances from the high tide mark were more successful than the nest in other part of the beach. There was not much difference in the hatchling successes between the three periods of nesting (nesting, peak nesting, post nesting) and within years.