Ocean
Watch
Friday, June 29, 2001
AMBASSADOR
TURTLES
A
few weeks ago, I wrote about a small turtle that nudged a woman’s leg
while she waded off the Big Island’s Mauna Lani Resort.
The turtle swam away but returned several times throughout the day,
gliding fearlessly among people’s legs in the shallow water.
The woman’s husband wrote, “Had someone once or more fed this
turtle and thus conditioned his friendliness?”
I didn’t know the answer to this
question until turtle biologist George Balazs sent me a paper he presented
at last year’s symposium on sea turtle biology and conservation.
The manuscript told the story of the Mauna Lani turtle.
In
the 1960s, before it was against the law to take turtles from the wild,
Sea Life Park workers collected several greens for display.
The turtles got a large swimming pool, a white sand beach and
plenty of nourishing food. Apparently
the park turtles liked the resort life (and each other) because in 1976
some nested on their private beach and produced hatchlings.
Since then, nesting has been an annual event there.
After the eggs hatch, the offspring are released in the ocean.
I
was invited to go on such a turtle-liberating excursion once and it
remains one of my fondest memories. Watching
the youngsters paddle away into the great unknown, however, was
bittersweet. Researchers
believe that of a nest of 100 or so hatchlings, only a few make it to
adulthood.
After
years of raising baby turtles, Sea Life Park worker Steve Kaiser had an
idea. Why not loan a few
hatchlings each year to aquariums in Canada and the U.S.?
The charming turtles would be their own best advocates for
conservation.
And
so in 1989, the “Hawaiian Sea turtle Ambassador Program” was born.
Facilities meeting strict criteria were lent one or more hatchings
to keep until they outgrew their display tanks.
Then, after being certified healthy, they would be released in
Hawaiian waters.
This
program of public awareness and education about sea turtles has been
popular and successful. Sea
Life Park’s little ambassadors have traveled near and far representing
their species. When it was
time to come home, most were released on the 4th of July in a Turtle
Independence Day celebration at the Mauna Lani Resort.
Occasionally
this turtle-lending has been mislabeled as a head-start program designed
to give hatchling turtles better chances of survival. This was never the goal of the loan program, however, through
flipper and PIT (injected) tags, researchers have been able to track the
ambassadors’ progress.
From
1990 to 1999, 102 captive-reared green turtles were released at the Mauna
Lani Bay Hotel. In that time,
18 have been seen again, twelve swimming and six stranded.
Of the six stranded turtles, two were dead, three were emaciated
and one had a severe propeller injury.
Veterinarians treated the four sick turtles and released them
again.
Of
the 11 swimming turtles weighed, all were the normal size for foraging
turtles of that age. This
implies that at least 11 homegrown turtles made the adjustment to natural
living.
But
not so.
Three
of these turtles hang around the Mauna Lani area to this day eating
lettuce and fish pellets offered by well-meaning people.
One of these freeloaders is most certainly my reader’s little
leg-nudger. These three
turtles didn’t adjust well to the wild, but they’re still a success.
In
learning how to live with people, their jobs as ambassadors for their
species will likely last a lifetime.
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