Turtle season

A sea turtle season to remember

A lot has happened since the last blog post. And I mean A LOT. So where to begin? I’ll probably try to tell our story about the 2022 turtle nesting season in chronological order, even though I might forget a few things.

Let’s start with July!

Earlier in June, Melvin and me decided to double the size of the hatchery as we prepared ourselves for Hawksbill nesting season (this species starts to nest sooner than all the others). Remember: The Eastern Pacific Hawksbill turtle prefers to nest on the small beaches in the Padre Ramos estuary which we don’t patrol ourselves, so we only buy a small portion of the nests while the big majority goes to the other turtle project called “Casa Carey” – those guys have been around for several years already and specialize on the protection of the critically endangered Hawksbills.
Our very first Hawksbill nest was delivered to us on the 2nd of July, and altogether we incubated 17 nests of this species.

Also in July, we received our first intern for the season: Tammy from China who is studying biology in the UK and found out about us through her university. Tammy was super passionate about nature photography and birds, while she had never worked with turtles before. Having lived in big cities for all her life, she was astonished by the clear night sky full of (shooting) stars, and a little bit frightened by all the critters and mammals living on our property. With Tammy, we started going on night patrols and also had some very first encounters with our beloved Olive Ridley turtle – we buried the first nest of this species on the 29th of July.

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Turtle season

Magical moments on the beach

Hey… it’s been quite some time. But the good news is: It’s not that there hasn’t been anything to tell. I haven’t written for so long because I just couldn’t find the time and tranquility as we’ve been so overwhelmed by this years’ turtle season. Here are all the details:

The official MEMANTA hatchery is up

After two years working with a provisional hatchery that we had built close to our house, about 200 metres away from the beachfront, the time had finally come: We built a permanent, fully-closed hatchery closer to the beach that holds space for around 50 nests at a time. The hatchery is fully secured against human intruders and all kinds of animals. Also, it is shaded in order to secure favourable temperatures and avoid a female-biased sex ratio (climate change and stuff…).

Unfortunately, the hatchery soon resulted too small. Especially in late September, our hatchery became super crowded as the older nests hadn’t hatched yet while more and more were coming in! Also, we had started putting some nests in the ground, as hatcheries “usually” do it. The thing is that in this case, you have to space out the nests more (the rule of thumb says 1m) so that bacteria etc. from one nest can’t spread to the others. With bag hatcheries, you don’t have that issue and can put the bags real close to each other.

We found that the hatching success is roughly the same for both methods, but bag hatcheries do create more waste and the nests take longer to hatch as they cool down quite a bit during the night. Next season, we would like to keep working with both methods – some nests we’ll put in our iconic red bags and some we’ll put in the ground.
Needless to say… we’ll then have to double the size of our hatchery!

Continue reading “Magical moments on the beach”