Five days after we see the first signs of emergence, we will excavate the nest and take an inventory of hatched eggshells, unhatched eggs, dead hatchlings, and live hatchlings. This data is used to determine the hatching success rate for our beach. These excavations also provide a great opportunity to see live hatchlings that may have been unable to make it out of the nest on their own.
Sea turtle season is wrapping up. Our last nest was laid on August 3rd, and all but 20 nests have hatched and been excavated. As the nests began to hatch, we discovered a few “wild” nests, ones that weren’t detected or marked right after they were laid, the only evidence being several tiny turtle tracks spread across the sand. This brings our total to 116 nests–a record for Little St. Simons Island!
As the beach changed throughout the summer due to winds, currents, tides, and other factors, we accumulated a thick line of wrack (dead Spartina grass) at the base of the dunes. Most of the nests laid in the latter part of the season ended up in this wrack line and therefore had to be relocated, resulting in a high relocation percentage of 60% (70 of 115 nests). However, we are also experiencing a high hatching success rate. The average hatch success rate so far is 73%, and the majority of nests have had 60% success or higher. One of our nests that was relocated this season had 100% hatch success, which is almost unheard of for a relocated nest or ones left undisturbed!
We have also had several sea turtles stranded on our beach this year. Two of which were large Loggerheads with splits in their carapace, possibly results of boat collisions. A smaller Loggerhead was found alive and transported to the nearby Georgia Sea Turtle Center on Jekyll Island for rehabilitation.
This sea turtle nesting season has been a busy one for the entire Georgia coast, with a total of 2,226 nests. For more nesting data for the Georgia coast, check out SeaTurtle.org.
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