Friday, November 26, 2010

[fishingtheusaandcanada] Asian carp create nagging fear in Lake Erie towns

 


http://www.kxxv.com/Global/story.asp?S=13570025&Call=Email&Format=HTML

By JOHN FLESHER
AP Environmental Writer
WHEATLEY, Ontario (AP) - Well before dawn, Todd Loop takes his fishing tug
onto Lake Erie in pursuit of yellow perch, walleye and other delicacies - a
livelihood that has sustained his family for three generations but faces a
future as murky as the freshwater sea on a moonless night.

Already ravaged by exotic species such as the sea lamprey and quagga mussel,
the Great Lakes soon may be invaded by Asian carp, greedy giants that suck
plankton from the water with the brutal efficiency of vacuum cleaners.
Scientists are unsure how much damage they would do, but a worst-case
scenario has them unraveling the aquatic food web by crowding out
competitors and decimating a fishing industry valued at more than $7
billion.

Nowhere is the danger greater than in Lake Erie. Although the shallowest of
the five lakes, its fish populations are by far the most abundant. That's
why commercial fishing, which has faded elsewhere in much the Great Lakes
region, is still alive in Canadian port towns scattered along the lake's
northern shoreline.

But fishermen such as Loop, 48, wonder how long their cherished way of life
will continue.

"We're just trying to survive and make a decent living," said Loop. "It's
bad enough already, but if those carp get in here . it could be absolute
devastation."

Commercial fishermen are already squeezed by the bad economy and regulations
limiting the size of their catch. The number of fishing boats and employees
has declined by about two-thirds in recent decades, and many of those who
remain say they're barely hanging on.

The industry's downfall would be a crippling blow for places like Wheatley,
where commercial fishing is not just a pillar of the local economy, but a
cultural icon.

"It's absolutely vital that the commercial fishing industry remains strong
here," said Barry Broadbent, owner of the Car Barn diner in Wheatley, where
local perch is a menu staple. "It puts money in everybody else's pockets."

Lake Erie has relatively mild temperatures and plentiful supply of plankton,
the foundation of the food chain, making it ideal fish habitat. In addition
to perch and walleye, which the Canadians call pickerel, the lake teems with
varieties prized by commercial and sport fishers alike: bass, trout, salmon,
whitefish, smelt and more.

On July 31, boosters placed signs at the edge of Wheatley proclaiming it
"the world's largest fresh water commercial fishing port." Ontario's oldest
and largest fish processor, Great Lakes Fish Corp., shut down a month later
in the town of 1,800 after operating just short of a century, idling 130
workers.

The closure was depressing for the tradition-minded community in which the
industry provides spinoff jobs such as repairing nets and maintaining boats.
Crews shop at local stores and eat at local restaurants.

Settlers established the first commercial fisheries on Erie's north coast in
the mid-19th century. By the early 1980s, about 130 vessels operated across
the region, employing some 3,000 workers. But the industry has declined
across the Great Lakes as improvements in technology and equipment led to
overfishing, invasive species took their toll and big operators bought up
smaller ones.

To the Canadian fishers, a big foe is the system that sets annual quotas on
the amount of walleye and perch that can be taken from Lake Erie to prevent
excessive harvests and give both commercial operators and sport anglers a
fair share. The limits are set by a committee with representatives from the
province of Ontario and the states adjacent to the lake: Michigan, Ohio,
Pennsylvania and New York.

Walleye catch limits have fallen drastically in recent years - just 2.2
million fish this year, down from 9.9 million in 2006. Perch levels have
fluctuated during the same period, but the committee warns of declines to
come.

Some commercial operators insist there's fish aplenty and that the quotas,
rising costs and the poor economy have pushed many to the brink. Those like
Don Loewen, 69, wonder whether the fishing industry can even stay alive long
enough for the invaders to make a difference.

"We will probably die before the carp get here," he said.

Bighead and silver carp, both Asian species, have migrated up the
Mississippi River and its tributaries for decades. They're now on the Great
Lakes' doorstep, threatening to enter Lake Michigan through Chicago-area
canals and rivers.

Authorities are trying to repel them with electric barriers, poisons and
nets. Five states are suing in federal court to close navigational locks
that provide openings to the lake, a move ferry and barge companies fiercely
resist.

If a breeding population takes hold in Lake Michigan, biologists say, they
could find their way around the tip of Michigan's Lower Peninsula to Lake
Huron, then south to Lake Erie. How long the journey of more than 700 miles
would take is anyone's guess.

"They'll make it eventually. They're good swimmers," said Jeff Reuter,
director of Ohio State University's Stone Laboratory.

This summer, the danger suddenly looked a lot closer. Biologists discovered
Asian carp had advanced farther north than previously thought on the Wabash
River in Indiana, which has a tributary that seeps into wetlands near Fort
Wayne. They say the carp could slip across the marshes during floods and
reach the nearby Maumee River. From there, it's a straight shot to Lake
Erie.

"Of all the Great Lakes, Lake Erie would be the most feasible place for them
to become established," said Roger Knight, a biologist with the Ohio
Department of Natural Resources. The characteristics that make the lake
hospitable to perch and walleye would apply equally to the carp.

An Asian carp infestation wouldn't necessarily doom other species, said
Duane Chapman, a U.S. Geological Survey biologist. Sport fishing is holding
its own in some places where carp have gained a foothold - particularly the
Missouri River, where anglers are still snagging catfish.

But experts agree it's likely that at least some species would suffer.

In Port Stanley, another Lake Erie fishing village, Larry Jackson's response
to the Asian carp threat was a fatalistic shrug. At 73, he's seen lots of
ups and downs in a lifetime of fishing. He was co-owner of the Wheatley
processing plant that recently went bankrupt. A big financial hit, but he
still has his lakefront fish shop and two tugs.

If the carp invade, Jackson said, he'll respond the only way he knows how:
by catching them. Their flesh could be turned into patties and sold in Asia,
where it's already popular, he said.

"If I'm given lemons, I'll make lemonade," he said. "If I'm given Asian
carp, I'll make fish sticks."


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