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http://dx.doi.org/10.11626/KJEB.2014.32.4.377

First Report of a Hybridization between Caretta caretta and Chelonia mydas from Jeju Island, South Korea  

Koo, Kyo-Soung (Department of Science Education, Jeju National University)
Han, Sang-Hyun (Education Research Institute, Jeju National University)
Oh, Hong-Shik (Department of Science Education, Jeju National University)
Publication Information
Korean Journal of Environmental Biology / v.32, no.4, 2014 , pp. 377-381 More about this Journal
Abstract
In this study, we report for the first time a hybridization between Caretta caretta and Chelonia mydas in South Korea. On 7th May 2012, a sea turtle (Jeju sea turtle 01, JST01) was found in the east coast of Jeju Island, South Korea. The morphological characteristics of JST01 were compared with those of C. caretta and C. mydas that were frequently observed in Korean Seas. Interestingly, JST01 showed similar morphological characters such as body color, appearance of carapace, shape of upper beak, serration on marginal scute, and two claws with those of C. caretta. On the other hand, JST01 showed also similar patterns in several characteristics including the numbers of marginal, inframarginal and costal scute, smooth carapace without keel, no contact between costal scute and nuchal scute with those of C. mydas. From these results, we suggest that JST01 is one of hybrid animals bred between C. caretta and C. mydas, because JST01 has species-specific characters from both species. We anticipate that our study would be useful and have significant impact onto study inter-specific hybridization in the groups of sea turtle.
Keywords
Loggerhead sea turtle; Caretta caretta; green sea turtle; Chelonia mydas; hybridization;
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