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How to combat Asian carp? Get an alligator gar!



 
 
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Old July 31st, 2016, 10:32 PM posted to alt.fishing.catfish
Garrison Hilliard
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Posts: 63
Default How to combat Asian carp? Get an alligator gar!

It's a toothy giant that can grow longer than a horse and heavier than
a refrigerator, a fearsome-looking prehistoric fish that plied U.S.
waters from the Gulf of Mexico to Illinois until it disappeared from
many states half a century ago.

Persecuted by anglers and deprived of places to spawn, the alligator
gar with a head that resembles an alligator and two rows of
needle-like teeth survived mainly in Southern states in the
tributaries of the Mississippi River and Gulf of Mexico after being
declared extinct in several states farther north. To many, it was a
freak, a "trash fish" that threatened sport fish, something to be
exterminated.

But the once-reviled predator is now being seen as a valuable fish in
its own right, and as a potential weapon against a more threatening
intruder: the invasive Asian carp, which have swum almost unchecked
toward the Great Lakes, with little more than an electric barrier to
keep them at bay.

Efforts are underway to reintroduce the alligator gar to the northern
part of its former range.

"What else is going to be able to eat those monster carp?" said Allyse
Ferrara, an alligator gar expert at Nicholls State University in
Louisiana, where the species is relatively common. "We haven't found
any other way to control them."

Alligator gar, the second-largest U.S. freshwater fish behind the West
Coast's white sturgeon, have shown a taste for Asian carp, which have
been spreading and outcompeting native fish for food.

The gar dwarf the invading carp, which themselves can grow to 4 feet
and 100 pounds. The largest alligator gar caught was 8 feet and 327
pounds, and they can grow even larger.

Native Americans once used their enamel-like scales as arrow points,
and early settlers covered plow blades with their tough skin and
scales.

But a mistaken belief that they hurt sport fish led to widespread
extermination throughout the last century, when they were often shot
or blown up with dynamite.

"Some horrible things have been done to this fish," said Ferrara,
adding that sport fisheries are healthier with gar to keep troublesome
species like carp under control. "It's similar to how we used to think
of wolves; we didn't understand the role they played in the
ecosystem."

Gar now are being restocked in lakes, rivers and backwaters
sometimes in secret locations in several states. In May, Illinois
lawmakers passed a resolution urging state natural resources officials
to speed up its program and adopt regulations to protect all four gar
species native to the state.

But the extent to which gar could control carp now is not well
understood, and some people are skeptical.

"I don't think alligator gar are going to be the silver bullet that is
going to control carp, by any stretch of the imagination," said Rob
Hilsabeck, an Illinois Department of Natural Resources biologist who
says the best hope is that carp will sustain an alligator gar fishery
to draw trophy hunters.

Others are more optimistic about the effect once the larger fish is
established, which might require cutting notches in canals to give
them access to spawning sites.

Asian carp reproduce more quickly, but alligator gar also grow fast:
Those stocked in one Illinois lake six years ago already are more than
4 feet long.

Quinton Phelps, a Missouri state fish ecologist, said the only way to
effectively control carp is when they're smaller, before they can
spawn. Which is where alligator gar come in.

"There is potential for them to be a wonderful weapon, but it's just
potential right now," he said.

One challenge is that huge gar could become a temptation for trophy
fishermen, even before they're old enough to spawn.

"It will be interesting to see if fishermen have enough integrity to
pass up a 7-foot fish that's 200 pounds," said Christopher Kennedy, a
Missouri fisheries supervisor who's working on catch regulations.
"We'd love to create a self-sustaining population that we can turn
into a trophy fishery."

Still, the fish has a public relations problem in some circles,
including a boating group in Illinois, whose members recently derided
it as a "trash fish" and questioned reintroduction efforts.

But avid angler Olaf Nelson, who in 2013 was the first to catch an
alligator gar in Illinois in 50 years a 2-footer in a stocked lake
said they're important whether anyone wants to fish for them or not.

"Whether they're loved or hated, they're a natural part of the
Illinois ecosystem," he said. "It's pretty rare that we can fix a
mistake."






http://www.latimes.com/nation/nation...nap-story.html

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