Recent Research Proves Eye-opening for Sex Determination in Sea Turtle Hatchlings
Did you know that the sex of sea turtles is decided by temperature-sex determination (TSD)? This means that the sex of a turtle is determined by the temperature of the nest, with cooler temperatures resulting in a larger number of males. This presents a complicated issue, since the turtles cannot be reliably sexed until they are approximately 10 years old. Although scientists can use laparoscopic techniques, this is not always accurate and many animals are mistaken for the opposite sex. Scientists from the Florida Atlantic University have discovered a solution to this perplexing problem. They have started using an immunohistochemical (IHC) method that is typically used only in freshwater species. This method is many times more accurate and eliminates the harming of specimens in order to perform the research. This new procedure was tested and found to have between a 93% and 100% success rate depending on the species. The IHC method is especially valuable for Dermochelys coriacea as they have a much slower maturation rate compared to other sea turtle species.
Turtle News From Around the World
Conservation
Mexico: Find out how you can be involved in sea turtle conservation!
USA: The mysteries of Gopherus polyphemus
India: Fisherman turns to help preserve turtles
USA: Coyote roundup is dangerous for native tortoises
USA: Predator management protocol in store
USA: Tortoises casualties at national park raise alarm
Blog
Costa Rica: Dogs are a real threat to sea turtle hatchlings
Ecology
AU: Caution! Rains cause turtle emergence on roadways
AU: Another shark net tragedy
Miscellany
Asia: Turtle statue under review for Hoan Kiem lake
Species Facts…
The beautiful Terrapene coahuila from Mexico, unlike other Terrapene species, is almost totally aquatic.
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Photo from Florida Atlantic University.
