Outer Banks
- The Turtle Story |
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| Poor little fellow! Only 18 hours old, two ounces in weight
and two inches long, facing the mighty Atlantic Ocean all by
himself. Blackness prevailed. The sky was ominous with not even
a hint of a moon. The only light visible was from an ocean vessel
far out at sea. The only sound, was that of the waves crashing
against the shore. |
Nests
of threatened and endangered sea turtles in the Pea Island Refuge,
part of Cape Hatteras National Seashore, had begun to hatch.
I was thrilled to be able to help with the release of 45 loggerhead
hatchlings, born after the turtle watch had left at midnight
and sometime before the morning patrol started on their rounds
at daybreak. They had been stored in three large pails of sand
and kept in a dark room at 28 degrees Celsius until it was time
for their release. Sea turtles start on the journey of life,
alone, uneducated, unprotected, the victims of chance. |
| These hatchlings were released on the beach near their nest
site, about 30 feet from shore. Flashlights had been dulled
with filters so the light would not distract them. In the darkness
we were afraid to move for fear of stepping on one but night
releases eliminate the threat of pelicans, vultures, night herons
and gulls as well as dogs. Most of the little fellows headed
for the ocean, an arduous journey for tiny feet. When a big
wave came it would throw them back up on the beach where they
would struggle to turn themselves around and try all over again. |
One
little fellow was really confused. Over and over again he veered
to the right so on hands and knees I made a barricade with my
right hand steering him toward the water, inch by inch. We both
got caught by more than one big wave but I didn't mind. For
a little while I could protect him from ghost crabs and wrong
turns, but very shortly he would be in that big ocean with fish,
sharks and whales, all pleased to eat him. |
It
took about an hour for all the little turtles to reach the water.
I can't help but wonder what would have happened if there had
been no volunteers. There were six of us helping Tracy Hunt,
an environmentalist, on staff with the Pea Island Refuge which
is under the umbrella of the U.S. Fish and Wildlife Service.
Two volunteers stayed at nest # 6 watching for more hatchlings
to emerge. Four of us drove to #9. As a visitor to the Outer
Banks, I felt privileged to tag along. |
| Estimates indicate one in 2,500 hatchlings survive to maturity
which takes 20- to 30 years. Female loggerheads are highly philopatric,
sometimes traveling hundreds of miles to return to the same
stretch of coastline. Nesting begins around May 15 and continues
to August 15, with hatchlings appearing 55 to 65 days later.
It is estimated that loggerheads live 50 to 100 years, reaching
200 to 350 pounds. |
| In the surf zone, hatchlings are besieged by sharks and schools
of hungry fish. Marine predators gather in the surf and wait
patiently for the hatchlings . Once beyond the dense swarms
near the shore, they have a better chance. Sea turtles spend
their earliest, most vulnerable years floating in the Gulf stream
in giant beds of sargasso weeds where they eat and grow, relatively
safe from predators. Once dinner-plate size they travel individually
but congregate at feeding locations off the nesting beaches.
The females may mate with several males prior to nesting season
and are able to store the sperm for several months. |
| In expectation of emerging hatchlings, we put up green corrugated
lawn edging making a two-foot wide path which extended from
the nest to the ocean. We patted it smooth, devoid of any obstacles
that could make the walk more difficult for those tiny feet.
Each stone was removed and each crevice filled in. |
| The hours passed slowly as we sat beside the nest watching
the white caps roll in. The company was great and the tranquility
of the night was captivating, in fact, spiritual. The sky was
black, not a star to be seen. At first the rain fell gently
but we were fine with rain jackets and umbrellas. The wind gradually
picked up and by 11:00 it was hurling rain at us. There was
no way to stay dry. Just before midnight Tracy decided to pack
it in. We rolled up our fencing, gathered our sodden blankets
and equipment, sloshed back to the highway through sand and
bush, anxious to reach the car. Our shoes squished with each
step. |
| Of the 14 nests along the beach, one was destroyed by a tidal
pool, a second lay empty with about 150 eggs hatched, 12 nests
remained, 11 were loggerheads and one was green sea turtle.
Late August will see the rest of the eggs hatch. |
| During the night, If undisturbed, a female comes on shore,
laboriously making her way on land to locate a suitable spot
well above the high tide line. Using rear flippers she digs
an egg chamber 8 inches in diameter and 18 inches deep After
resting briefly she fills the hole with a clutch of 100 or more
soft eggs about the size of ping-pong balls, gently covers them
and then spreads sand over a wide area with her front flippers
to obscure the exact location of the chamber. She never sees
the nest again. |
| The mother may nest four to seven times a season and then
not again for two or three years. Crawl tracks are always made
by a female sea turtle; males never leave the water. Incubation
requires between 26-32 degrees Celsius and sex is temperature
dependent. It is male biased in the cool range with a 1:1 ratio
at 30 degrees for loggerheads. The peak time of emergence is
between 21:00 - 02:00 hours. |
| As soon as a volunteer sees a trail left on the beach, the
nest is protected by a wire basket because raccoons, skunks,
coyotes and dogs love the eggs. Blue markers identify the spot
and the area is marked 'out of bounds' with ropes. |
| This refuge has had as many as 42 nests in the past but erosion
of the beach, commercial fishing nets, development and beach
driving are seriously reducing the habitat. Deadly for leatherback
turtles are plastic bags discarded in the water which are mistaken
for jelly fish. Loggerheads eat crabs, clams, mussels and shrimp.
On other beaches with less protection, shoreline development,
beach-front construction, coastal armoring, artificial lights
and pollution are serious threats. |
| I was impressed by the dedication of the volunteers, members
of the Network for Endangered Sea Turtles (N.E.S.T.). Some give
up four nights a week to protect the nests from 7:00 till midnight
and others handle the morning patrol which starts at daybreak.
It is a very rewarding experience but I was shattered to learn
that in mainland China, tons of turtles, many shipped from the
States, are consumed daily because the Chinese believe that
eating turtles is the secret to long life and wisdom. In some
Latin American cultures men covet sea turtle eggs as an aphrodisiac.
All sea turtles are protected under the Endangered Species Act
but enforcement is lax and poaching rampant. Turtle meat and
eggs are a black-market delicacy and tortoiseshell jewelry and
souvenirs bring good dollars. There are are no easy answers. |
| Leatherback turtles are endangered. In 1980 the total world
population of nesting females was 115,000. In 1995 that number
had dropped to 34,500 and all counts indicate the number has
decreased alarmingly since then. This species has lived more
than 65 million years, surviving the fall of the dinosaurs and
the rise of humanity. What a loss to mankind if the only surviving
sea turtles are in aquariums. |
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