Boat strikes are a leading cause of sea turtle strandings and manatee injuries and deaths. Manatees and all sea turtle species found in Georgia are protected by federal and state laws.
Tips on what to watch for in the coast’s murky waters differ. A “footprint” of swirls may mark a 1-ton manatee underwater. A 300-pound loggerhead sea turtle may show only its head when it surfaces. Sea turtles spend more time on the surface in spring, which warms their bodies but puts them more at-risk.
What can boaters do? Be vigilant, be ready to slow down or steer clear, and if they do run into a sea turtle or manatee, stand-by and immediately contact the DNR at 800-2-SAVE-ME (800-272-8363). This provides biologists the best chance to help these animals and gather data useful in conserving them. Boaters will not be charged if operating their boat responsibly and the collision was an accident.
State Sea Turtle Program Coordinator Mark Dodd of the Georgia Department of Natural Resources emphasized that sea turtles are not limited to the ocean side of barrier islands. “They occur everywhere, not just in the ocean,” Dodd said. “They’re in the sounds, the estuaries, the tidal creeks.”
While nesting data suggests these federally threatened turtles are rebounding, boat strikes that kill or injure reproductive females undermine those gains. In 2017, about 29 percent of the sea turtles found dead or injured on the beach or strand in Georgia suffered injuries consistent with being hit by a boat.
Manatees share a similar problem. These slow-moving mammals swim just below the surface, often putting them in harm’s way for oncoming boats. Watercraft collisions caused 25 percent of the manatee mortalities documented in the state since 2000.
While reclassified from endangered to threatened last year, manatees remain an at-risk species.
These massive marine mammals migrate from Florida to Georgia each spring, attracted by abundant marsh grass and other aquatic vegetation. Some move back and forth between the states through summer, until colder water temperatures in fall draw them south to Florida for the winter.
But from April to October, manatees occur in all tidal waters throughout coastal Georgia, said senior wildlife biologist Clay George of DNR’s Nongame Conservation Section.
“We’ve had numerous sightings in the Brunswick area already, and water temperatures are warm enough for manatees coastwide,” George said. “They could be anywhere from St. Marys to Savannah at this point. Boaters should be aware.”
Heeding low-speed and no-wake zones, particularly around docks where manatees eat algae growing on the structures, will reduce collision risks. So will sticking to the deeper channels when boating in tidal rivers and creeks. George said manatees “are often right along the edge of the marsh,” feeding on Spartina alterniflora, or salt marsh cordgrass.
Boaters and others are also encouraged to report any dead manatees and sea turtles they see. (If the turtle is tagged, include the tag color and number in the report if possible.)
DNR monitors sea turtle and manatee mortality through the Marine Turtle and Marine Mammal Stranding and Salvage Networks. The information gleaned, including from necropsies to evaluate cause of death, provides the primary index for threats to sea turtles and marine mammals in coastal waters.
Sea Turtle Strandings Online
Regular updates available at www.georgiawildlife.com/conservation/seaturtles (click the “Reported Strandings” box).
See a Manatee?
If you see or photograph a healthy, injured or dead manatee, please contact DNR at (800) 2-SAVE-ME (800-272-8363). Please note the date, time, location and number of manatees seen, as well as the coordinates, if possible.
Manatees sometimes gather in groups to socialize. Large mating “herds” can top 20 individuals. Socializing is normal manatee behavior, wildlife biologist Clay George said. “Females sometimes swim into shallow water on purpose, apparently to avoid approaching males.”
On the Lookout for Manatees
Here are some other ways Georgia residents can help protect manatees:
- Look around for manatees before cranking your boat’s motor.
- Use caution when navigating in shallow water and along the edge of a marsh. Manatees cannot dive away from boats in these areas.
- Please heed “slow speed,” “no wake” and manatee warning signs, especially around docks.
- Wear polarized sunglasses to reduce glare, making it easier to spot manatees below the surface.
- Watch for trails of large swirls in the water called footprints that may be caused by manatees diving away from the boat.
- Dock owners should never feed manatees or give them fresh water. This could teach the animals to approach docks, putting them at greater risk of a boat strike.
- Never pursue, harass or play with manatees. It can be harmful to manatees and it’s illegal.
Help Georgia's Nongame Wildlife
Help conserve rare and other wildlife by contributing to the Georgia Nongame Wildlife Conservation Fund through buying or renewing a bald eagle or hummingbird license plate, or donating online.
Learn about wildlife tags at www.georgiawildlife.com/licenseplates. Give online at www.gooutdoorsgeorgia.com(click “Licenses & Permits” to create a customer account; more at www.georgiawildlife.com/donations).
These plates and donations provide vital support for the DNR’s Nongame Conservation Section. This part of the agency depends primarily on fundraising for its mission to conserve wildlife not legally hunted, fished for or trapped, as well as rare plants and natural habitats.