Sea turtles are one of the most fascinating marine reptiles and, therefore, in Ecologista Verde and together with the CRAM Foundation (Conservation and Recovery of Marine Animals), which focuses on the study and conservation of these animals, we want to teach you as much as possible about them. For example, could you tell how many eggs they lay in their nests at a time and how is their incubation?
Discover how many eggs do sea turtles lay according to the species with this interesting article in which, in addition, we will detail when the laying is, how they do it and what the incubation and birth of the small turtles are like.
It is difficult to say exactly how many eggs sea turtles lay, since not only do we find that each species lays a different amount, but also, within the same species, there are many fluctuations in the volume of eggs they lay at each clutch. These variations may depend on genetic factors, environmental factors and the age of the animal, among other aspects.
Trends in number of eggs laid by sea turtles according to the species they are the following:
Which is the breeding season of sea turtles? Is it different according to the species? The truth is that the season can change between the different species and, within it, there are even turtles that reproduce at different times.
These marine reptiles may have seasonal reproduction, such as the leatherback or leatherback turtle, or reproduction with more homogeneous patterns, such as the loggerhead or loggerhead turtle. In the case of the leatherback species, its reproductive season occurs when the climate in the place where it nests is humid and warm. For example, in the American tropics it occurs between the months of February and July and, on the other hand, on the Atlantic coasts of Africa it occurs between the months of November and March. In the case of the loggerhead species, normally, reproduction occurs in early spring in all nesting areas.
Furthermore, sea turtles reproduce sequentially with very little variation throughout life.
Where do sea turtles lay their eggs? We might think that living in the seas they put them right there, but the truth is that they do mate in the water, but to lay their eggs they go to the beaches.
Some species have philopatry, that is, females return to nest on the same beaches where they were born, the males do not. On the other hand, other species, such as the leatherback or leatherback turtle, vary a lot from beaches, they return less to those that were born and can even go to several beaches that are separated by many kilometers. However, what we do not know with complete certainty is what are the criteria that they follow to choose a beach, when it is not the one in which they were born. It is considered that they select it according to several criteria such as, for example: temperature, the absence of light, the type of sand and the texture it has, the underwater topography of the area, the rock formations and the vegetation on the beach , among others.
The process of laying eggs of sea turtles is the following:
About how many nests each female makes in a single season, it is just as difficult to specify the number of eggs for the same reason: various factors intervene that determine the laying of eggs. The trends in terms of the number of spawns per season and the days that elapse between one and the other are as follows according to the species:
As we have indicated before, the sea turtle eggs are left alone in the nest, since after laying them the mother does not stay to incubate, monitor and protect them. Therefore, the eggs are incubated thanks to the environmental conditions of the nest area. According to nest temperature, the sex of the turtles can vary. Depending on the species this changes, but, for example, in the case of the loggerhead the 29.5 ºC the average maintained is the temperature at which they can leave similar percentages of both sexes. On the other hand, if the temperature is higher than 29.5 ºC more or less maintained, more females will come out and, on the other hand, if it is lower, more males will come out.
After the incubation period, which varies in each species but, for example, in the case of the loggerhead it is usually about 2 months, the young begin to be born. Do youHow sea turtles are born exactly? Here we mention some aspects about the process:
As many of these turtle species are in danger of extinction or in a state of vulnerability, there are associations, foundations and other entities that are dedicated to caring for and studying them, as well as fighting for their conservation. This is the case of the CRAM Foundation (Conservation and Recovery of Marine Animals), which is dedicated to conserve marine life. This foundation is in charge of helping to conserve marine beings on the Catalan coast, especially the Mediterranean turtles. When they receive a notice that a nest has been detected on a beach in this region, they guard it and take care of it until the young leave it. Once these emerge, a small percentage of the young are transferred to the CRAM Foundation facilities until they reach an optimal weight and size to avoid the first predators. This helps to ensure that it is somewhat easier for some of the new generation to survive until they reproduce.
If you ever see a turtle that needs help on the beach or in the water or if you detect a nest in the sand, do not hesitate to notify the emergency services, which in the case of Spain is number 112, and from there they will notify the foundation, association or entity dedicated to helping these species, such as the CRAM Foundation (Conservation and Recovery of Marine Animals). If you want to find out more about how you can help these animals, we encourage you to enter here and learn how to help the CRAM Foundation, since there are many options for this, such as, for example, collaborating by donating from € 1 per month to the amount you consider or Well, volunteering to do jobs at the recovery center.
After having clarified the doubt about how many eggs do sea turtles lay and other related aspects, now we encourage you to continue learning about them by taking a look at this other article on How sea turtles reproduce, so you will learn more details about their reproduction, such as their courtship and mating, among others.
If you want to read more articles similar to How many eggs do sea turtles lay, we recommend that you enter our category of Animal Curiosities.