Hatchlings – Post Hatchlings

Hatchlings & Post-Hatchlings
Hatchlings & Post-Hatchlings

Species: Loggerhead, Green and Leatherback

Stranding Date
: June through October
Stranding Location: Local beaches

Injury: Disoriented or injured hatchlings

 

 

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ADMISSION NOTE:

Hatchlings that come to the Loggerhead Marinelife Center did not make it out to the open ocean when they hatched. This is caused by multiple factors. Some of our turtles were simply too weak to make it to the ocean or beyond the point of the wave break. Others were attacked by fire ants or other local wildlife, or some go in the wrong direction. Rather than go towards the ocean (which is the brightest, lowest horizon) they head towards the dunes and road because of lights coming from that direction. Our Hatchlings are held here for about 1-2 weeks. When the Hatchlings are ready for release, they are taken by boat to the Sargassum patches about 10-15 miles out in the ocean.

PROGRESS NOTES:

02/16/2017 –  Sargassum has been reported south of us. We are watching closely for a weed line in our area.  

01/25/2017 –  We are still looking for sargassum offshore but there is none in sight.

01/04/2017 –  We are still looking for sargassum offshore for us to release these turtles.

12/29/2016 – We are still looking for sargassum offshore for us to release these turtles.

12/21/2016 – No new post-hatchling have arrived this week. We are still looking for sargassum offshore for us to release these turtles.

12/14/2016 – We have not received new post-hatchlings this week. We are still looking for sargassum offshore for us to release these turtles.

11/30/2016 – Wash backs are no longer arriving every day, so hopefully that is about finished.

11/23/2016 – We continue receiving wash backs regularly.

11/02/2016 – We continue to receive wash backs following the hurricane. We currently have about 19 wash backs undergoing treatment. FWC is planning a release offshore on Friday. We hope to include most of our hatchlings and wash backs with this release.

10/26/2016 – We continue to receive wash backs. FWC is planning a release offshore on Friday. We hope to include most of our hatchlings and wash backs with this release.

10/20/2016 – We are receiving post hatchling sea turtles since Hurricane Matthew. We currently have one green, one loggerhead and two hawksbill post hatchlings.  Most seem to be affected by plastic ingestion.

POST HATCHLINGS:

Post_hatchling
Post Hatchling refers to the size classification given to hatchlings when they reach a straight maximum length of 5cm.  Many of these turtles come to us during storms or times of rough surf and are unable to swim out past the break after coming close to shore.  Often all they need is a week or so of rest and good nutrition to be able to return to the ocean and continue their journey through life.

WASHBACKS: These turtles are post hatchling “washbacks”. This means that they are turtles who were too weak or debilitated to fight the strong currents and wash back ashore. These are turtles that are usually a few days to a few weeks old, which is considered post hatchling size (Larger than 5 cm.). Any turtle that is a post hatchling or larger must be admitted and documented as a patient at our facility. The small white dots on their shells are identifying markers.

LEUCYSTIC HATCHLINGS:

Leucystic_hatchling
During sea turtle nesting season we occasionally encounter leucistic (loo-sis-tic) hatchlings, which appear white or cream colored. This pigmentation defect is caused by the reduction of all pigment production in the body and can affect the whole body or just portions of it. This condition is often confused with albinism, which is caused by a lack of functioning melanin producing cells.  Albinism affects the entire body, including the eyes, which will appear pink.  With leucism, the eye color will be normal.

Leucism is a genetic mutation that is not compatible with the successful continuation of the species. This and other genetic mutations create anomalies, and the affected individuals are not well suited for survival.  Perpetuation of these traits will weaken the species overall.  Without the necessary pigmentation these individuals cannot camouflage in the sargassum, during their early years.  This actually attracts predators, thereby putting these turtles as well as normal healthy ones nearby at risk.

The lack of protective melanin means this turtle will be prone to UV sun damage, painful burning, and the development of cancer.   This makes them poor candidates to remain in captivity.  In addition, the educational value of keeping a genetic mutant is poor, as they do not accurately represent the species.