By Mary Cotoia
Did you know that the beaches of Brevard County are some of the world's most important nesting beaches for sea turtles? Between the months of March 1st through October 31st is sea turtle nesting season along the beaches of our Space Coast. Our 72 mile coastline offers the perfect environment for endangered nesting sea turtles. The leatherback, loggerhead, green turtle, and occasional Kemp Ridley and hawksbill turtles can be seen nesting along our beaches. Turtle nesting season is both an exciting and sensitive time. Depending on the species of turtle, they come ashore at different times. Their clutches of eggs can be found within the dunes, or the middle of the beach, according to the Sea Turtle Preservation Society, who mark these nests with wooden stakes to protect them from beach goers. It is important to be vigilant and not disturb these nests in any way. Incubation of the eggs can take between 45-75 days depending on the species. A nesting turtle may make several attempts to come ashore, usually at night. Once ashore, it can take her several hours to lay between 80-120 eggs.
As the season advances, the likelihood of observing hatchlings making their way to the sea increases. These hatchlings tend to make their way back to the sea at night, following the moon’s reflection on the crashing waves. Here's an interesting fact about turtle eggs: The temperature of the sand determines the sex of the hatchlings, with warmer sand producing females and cooler sand producing males. Sea turtles, which have roamed the oceans for the past 100 million years, are a vital part of marine ecosystems.
Leatherback turtles consume large numbers of jellyfish which helps to keep populations of these marine organisms in check. Leatherbacks are the largest sea turtle and can weigh up to 2,200 pounds. Males spend their entire life in the sea. Females only come ashore when they lay their eggs. They are most vulnerable at the time they are nesting. Leatherback turtles have not changed in millions of years and have existed in their current form since the time of the dinosaurs. Females will swim over 10,000 miles a year to reach their nesting grounds. They live an average of between 45-50 years.
The way loggerhead turtles feed on their hard-shelled prey recycles important nutrients and keeps ocean floor sediments in balance. Loggerhead turtles carry colonies of small plants and animals on their shells which serve as important habitats themselves. As many as 100 species of animals and plants have been recorded living on one single loggerhead turtle. Adult loggerhead turtles are 3 feet long and weigh 250 pounds. They take up to 39 years to reach sexual maturity. Female loggerhead turtles return to the same nesting grounds where they were born to lay their eggs. They have a lifespan of up to 80 years or more.
Green turtles graze on seagrasses and algae, which maintains the seagrass beds and makes them more productive (much like mowing the lawn to keep it healthy). Seagrass consumed by green turtles is quickly digested and becomes available as recycled nutrients to the many species of plants and animals that live in the seagrass ecosystem. The green turtle is the largest species of hard-shelled turtles, and is the second largest of all sea turtles.They reach sexual maturity at 25 to 35 years old. Green turtles are named after their green-colored fat, which they get from their herbivorous diet of seagrass and algae. Female green turtles return to the same beach where they were born to nest, no matter how far it is. Green turtles are said to live at least 70 years, and some estimate they can live up to 100 years.
Once hatched, the tiny turtles must crawl the length of the beach where they may meet the fate of predators like raccoons, birds, ghost crabs and coyotes. Then, once in the water, they have an arduous and dangerous journey as far as 20 miles to reach seaweed where they can feed and hide from other predators. Along the way they can fall prey to other fish and sharks or get caught in fishing nets and drown. According to Craig Konkel of the Sea Turtle Preservation Society of Brevard County, only about one in a thousand hatchlings live to become adults.
The Florida Fish and Wildlife Commission grants permits each season to the Sea Turtle Preservation Society, University of Central Florida Marine Turtle Research Group, and Sea Turtle Conservancy to track the nesting turtles. These groups patrol the beaches daily during nesting season and mark the nests.
What you can do to help the turtles:
- Don’t leave trash on the beach or in the water.
- Don’t leave beach chairs or umbrellas on the beach.
- Fill in any holes dug in the sand
- Smooth over sand castles or other things built in the sand, so as not to interfere with the turtle’s path.
- Don’t use flashlights at night or have any lights on your property facing the beach.
- Observe the Brevard County ordinance banning lights on the beach beginning May 1st.
- If you see a sea turtle coming ashore, maintain a distance and do not get between the turtle and the dunes.
- Should you find a stranded or injured turtle, call the STPS hotline for assistance from trained volunteers at 321-206-0646.
These endangered and threatened species are protected by various Federal, State and Local laws. For example, Florida’s Marine Turtle Protection Act (https://bit.ly/2VocTtl) and Florida Administrative Code 68E-1 (https://www.flrules.org/gateway/chapterhome.asp?chapter=68E-1) make it illegal to possess turtle eggs, disrupt their nests or disturb the turtles themselves, among other things.
Anyone interested in witnessing the nesting process can participate in night time turtle walks led by several organizations including Sea Turtle Preservation Society, Sea Turtle Conservancy, Friends of the Carr Refuge, and Sebastian Inlet State Park. The turtle walks are regulated by the Florida Fish and Wildlife Commission. Participants in the walks cannot take flash photography, and no flashlights are allowed. Guides use red lights to guide the way. Anyone participating in the walks should be prepared to walk a mile or more in soft sand.
Taking part in a turtle walk can be an exhilarating experience, and Brevard County’s Space Coast offers numerous opportunities to join in!