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Our very first Green turtle nest of the season has hatched and two days later we excavated the nest to determine the nest success (how many eggs have hatched and how many hatchlings have emerged from the nest). From the first signs of hatchlings or hatchling tracks from a nest, it takes normally two days until all healthy hatchlings have left the nest and made their way to the sea. So after two days we dig up the nest to see how many of the eggs were successful and how many weren’t. The ones that aren’t successful will either show signs of predation (by crabs, insect larvae, ants, fungi etc.) or uncompleted development (e.g. no embryo inside the egg; or embryos at uncompleted stages).
The bits of shell larger than 50% are used to determine the number of eggs that have successfully hatched. However, not all of the successfully hatched…
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