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To: 10K a day who wrote (115069)4/6/2008 9:24:08 AM
From: Pogeu MahoneRead Replies (2) | Respond to of 306849
 
California salmon collapse could lead to Pacific fishing ban

AP Photos CAFRA101
By TERENCE CHEA
Associated Press Writer
SAN FRANCISCO (AP) -- The stunning collapse of one of the West
Coast's biggest wild salmon runs has prompted even cash-strapped
fishermen to call for an unprecedented shutdown of salmon fishing
off the coasts of California and Oregon.
"There's likely no fish, so what are you going to be fishing
for?" said Duncan MacLean, a fisherman from Half Moon Bay. "I
have no problem sitting out to rebuild this resource if that's
what's necessary."
The Pacific Fishery Management Council meets in Seattle this
coming week and will likely vote to impose the most severe
restrictions ever on West Coast salmon fishing to protect
California's dwindling chinook stocks.
The Sacramento River chinook run is usually one of the most
productive on the Pacific Coast, providing the bulk of the salmon
caught by sport and commercial trollers off California and Oregon.
But only about 90,000 adult chinook returned to the Central
Valley last fall -- the second lowest number on record and well
below what's needed to maintain a healthy fishery. That number is
projected to fall to a record low of 58,000 this year. By contrast,
775,000 adults were counted in the Sacramento River and its
tributaries as recently as 2002.
"This stock got off-the-charts bad very suddenly," said Donald
McIsaac, the council's executive director. "It's a very, very
severe situation."
The council, which regulates Pacific Coast fisheries, will
choose between three management options: a total ban on salmon
fishing off the coast of California and Oregon; extremely limited
fishing in select areas; or catch-and-release fishing for
scientific research.
The council is also expected to set strict limits on salmon
fishing off the coast of Washington to protect that state's
declining chinook and coho stocks.
The council's final decision is expected April 10. The National
Marine Fisheries Service will then decide whether to implement the
regulations by May 1.
The Central Valley collapse is a blow to fishermen, tackle
shops, charter boat operators and other businesses that depend on
commercial and recreational salmon fishing.
For consumers, it will be hard to find any chinook, also known
as king salmon, which is prized by anglers, seafood connoisseurs
and upscale restaurants. There should still be abundant supplies of
farm-raised salmon and wild sockeye from Alaska, but prices could
be higher.
"It's going to be devastating to the marketplace to have no
California king salmon at all," said David Goldenberg, CEO of the
California Salmon Council. "For people who want high-quality
salmon, they're not going to have that choice."
Biologists and others are trying to figure out what caused the
salmon collapse so they can make sure California's chinook
populations rebound.
There are many potential factors because wild salmon are born in
streams and rivers, migrate to the ocean when they're juveniles and
spend two to four years there before returning to spawn in the
areas where they were born. In between they have to navigate the
often treacherous waters of the Sacramento-San Joaquin Delta and
San Francisco Bay.
The council has asked state and federal scientists to research
46 possible causes, including water diversions, habitat
destruction, dam operations, agricultural pollution, marine
predators and ocean conditions.
Many scientists point to unusual weather patterns that disrupted
the marine food chain along the Pacific Coast in 2005, when
thousands of seabirds washed up dead or starving because they
couldn't find enough to eat.
Researchers believe those poor ocean conditions also devastated
the juvenile salmon that would have returned to the Central Valley
last year. Young chinook couldn't find the tiny shrimp and fish
they depend on to survive.
"The fish went to the ocean in 2005 and found nothing to eat
when they got there. They either starved to death or got so weak
from not eating enough that they got eaten by predators," said
Bill Peterson, an oceanographer with the National Marine Fisheries
Service.
Peterson said ocean conditions have improved since then, which
could help revive West Coast salmon populations.
Many fishermen and environmentalists believe the main problem
lies in the Sacramento-San Joaquin Delta, which juvenile salmon
must swim through to get to the ocean. They say too much water is
being diverted to farms and water districts in the San Joaquin
Valley and Southern California.
They want the state and federal government to limit pumping from
the delta, which disorients migrating salmon and kills young fish
that get sucked into the powerful pumps. They're also calling for a
reduction in agricultural runoff and the restoration of salmon
habitat in the rivers.
"We did have some poor ocean conditions, but that doesn't
explain why the Central Valley stocks took such a severe hit,"
said Zeke Grader, who heads the Pacific Coast Federation of
Fishermen's Associations. "Young salmon need a place they can
safely migrate through. This is a critical life stage when they
need to gain weight and strength so they can survive in the
ocean."
But state water officials believe the ocean is the chief
culprit. The water pumps continue to meet stringent operating
standards, and while more water has been diverted in recent years,
there's also been more water available to export, said Jerry Johns,
deputy director of the California Department of Water Resources.
"Ocean conditions are the most likely cause here," Johns said.
"The requirements that we have to abide by to protect these fish
haven't changed in the last several years."
Most scientists agree that a combination of factors caused the
Central Valley crash, and the fishery can be revived under the
right conditions.
"They do have an amazing capacity to bounce back," said Peter
Moyle, a fisheries biologist at the University of California,
Davis. "If you do have good ocean conditions and you fix a lot of
problems in freshwater, there's no reason in the near future we
can't have good runs."
(Copyright 2008 by The Associated Press. All Rights Reserved.)
APTV-04-05-08 0942PDT