Net
Loss
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Bonneville
Power Administration |
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A
fish biologist from the National Oceanic and Atmospheric
Administration examines an anesthetized adult spring chinook
in a recovery tank at Lower Granite Dam, Wash. |
The
price tag -- which adds 30% to the electric bills of some Northwest
consumers -- upsets lawmakers on both sides of the aisle. They are
pushing legislation to require the power authority to list the cost
separately on electric bills. In a recent survey, consumers said they
thought the fish-saving effort added 5%, at most, to their tabs.
"Lately
this has been used as a kind of unlimited fund," fumes Republican
Sen. Larry Craig of Idaho. "If I had to go before Congress every
year to get $700 million to provide for habitat and other improvements
for salmon, I wouldn't get anywhere near that amount of money."
Stephen
J. Wright, Bonneville's administrator, says the new accounting
proposal "makes sense," but adds that he would prefer to
show the cost as a percentage of Bonneville's $3 billion annual
budget.
Bonneville
defenders say Congress has complicated efforts to save the salmon.
Under the Endangered Species Act, for example, Indian and commercial
fishermen are allowed to catch and sell wild salmon scooped up
accidentally during the harvesting of hatchery fish. Legal battles
between various interest groups dating back decades haven't made
matters easier.
First Major Obstacle
For
many salmon, the first major obstacle on their swim to the Pacific
starts at Lower Granite, a 3,200-foot dam jutting across the Snake
River about 70 miles south of Spokane. Until the mid-1980s, the baby
salmon, four to six inches long, had to survive a churning,
pressurized plunge through whirling turbines. An early attempt to
provide an alternative sent the fish zooming through fast-moving
spillways where they bounced off the cement walls. As many as 10% of
the fish were killed at each dam.
Today,
fish that arrive at the top of this dam are sucked into a
"juvenile bypass system," a series of pipes and chutes where
the water moves more slowly to minimize bruising. Many are steered
into a special fish-handling room, knocked out by a bath of mild
anesthetic and injected with tiny transponders about the size of a
grain of rice. Bonneville buys two million a year at $2 a piece,
enabling scientists to track the salmon's journey.
After
the transponders are inserted, some fish are gently returned to the
river to navigate the other seven dams, which are equipped with
similar bypasses. The majority are pumped into the tanks of one of
eight specially designed barges that deposit them in the Columbia
River estuary beyond the last dam. In the tranquil, 36-hour cruise,
98% of the salmon survive, according to Bonneville.
Scientists
are hotly debating the cause. Some blame an unusual concentration of
predatory birds at the mouth of the river, including Caspian terns,
which are protected as an endangered species, and double-crested
cormorants, which come under another federal law protecting migratory
birds. These birds hit the young salmon like feathery dive-bombers and
may cause as many as 4% of the estuary deaths, NOAA says. Thousands of
transponders are being recovered from piles of bird dung.
Ed
Bowles, chief of fisheries for the state of Oregon, says Bonneville --
not the birds -- is to blame. He says many of the fish left to
navigate the dams alone are too stressed and weakened to survive the
rigors of the estuary. The barges, he says, just make things worse.
"Collection and handling causes a lot of stress," he says.
The barged fish become disoriented and aren't skilled at avoiding
predators. Studies suggest they are dying at twice the rate of other
fish, Mr. Bowles says.
To
settle the controversy, NOAA persuaded Bonneville to buy
"acoustic tags." The devices, which are inserted into the
salmon as they leave the last dam, are larger than the transponders,
which can be detected only when the fish swim through narrow tunnels
in the dams. The bigger devices give off a distinctive ping that can
be picked up by underwater microphones, enabling scientists, for the
first time, to track the fish in the estuary via computers. So far,
Bonneville has implanted 14,000 tags at a cost of $270 each.
When,
at a year old, the salmon leave the estuary -- heading into the
Pacific Ocean and then north into Canadian waters -- they face other
threats. Canada changes the times and locations where fishing is
allowed to protect endangered Canadian salmon species during their
peak migration periods. That move pushes Canadian fishermen to catch
more American salmon, say critics in Congress. According to some U.S.
fishing groups, 40% of the Canadian commercial salmon catch consists
of U.S. endangered species.
Terry
Beacham, a research scientist for Fisheries and Oceans Canada, a
government agency, admits it is "a possibility" that
Canadian fishermen are catching more U.S. salmon, although that is
"not the intent of the [fishery] managers." The government's
goal, he says, is "to reduce the exploitation of fishing stocks
that are of concern in Canada."
Salmon
remain as long as three years in the ocean, where they mature and take
on weight. Some are caught by Japanese and Russian fishing trawlers.
Ocean conditions are the single biggest factor that determines whether
the fish return to spawn or die at sea, according to NOAA. Food-filled
cold currents are good for the fish, warm currents bad.
Salmon
that make it through Canadian waters and start their trip homeward
have to run a gauntlet of new perils. On the return journey, the dams
are a less of a concern, since all are equipped with fish ladders.
Instead a population of voracious male sea lions waits to ambush the
salmon below the first dam. The sea lions tear off and eat the egg
sacs of returning females. The fattening fish oil in the eggs makes
them more attractive to female sea lions during summer mating season.
Commercial
fishermen used to shoot the sea lions but that is now banned by the
1972 Marine Mammal Protection Act. As their population increases, some
sea lions have learned to climb the fish ladder of the first dam.
Crews hired by Bonneville have tried rubber bullets, rubber-tipped
arrows, fireworks and special cages. The sea lions, which destroyed
3.4% of the returning spring Chinook last year, have ignored the
fireworks and are learning to get through the special cages.
Above
the Bonneville Dam -- 140 miles into the salmon's return journey --
the human threat looms large. There, Indian tribes and other fishermen
are permitted to fish for salmon under not only the Endangered Species
Act but also under various treaties and state laws. Indians have had
the right to fish for salmon for more than a century in return for
turning over their land to the federal government.
Legal Loophole
The
result of this legal loophole: The tastiest of the salmon species, the
spring Chinook, is served up at Seattle restaurants that pay as much
as $26 a pound. Having an endangered-species law that allows people to
catch and eat salmon, an endangered species, "seems curiously out
of synch," James L. Connaughton, chairman of the White House
Council on Environmental Quality, said in a speech this year.
Indian
salmon hatcheries and fish-preservation programs are financed, in
part, by salmon sales. "We must have salmon to save salmon,"
Billy Frank, the spokesman for 20 fishing tribes, explained to a
congressional panel last year.
State
laws, meanwhile, allow fishermen to take as much as 50% of the
returning fish in any given season. That right is defended fiercely by
powerful groups, including the Northwest Sportfishing Industry
Association, which says it represents business interests such as boat
and tackle makers with total annual sales of $3.5 billion. The group
would like to see four of the eight Bonneville dams torn down to
restore the wild river. It helped persuade a federal judge to order
Bonneville to spill more water over the dams to increase water flow.
Northwest
River Partners, a group that represents local utilities, farm groups
and others that use the river for transportation, would rather not
spend any more money to help the salmon. They also maintain that water
spills don't help.
Over
the years, head-butting between sportsmen and local businesses has
stymied government policy by making a comprehensive solution harder to
achieve. There are currently 22 separate cases asking judges to
intervene in various parts of the salmon problem. One dates to 1969.
At
Lower Granite, the salmon face one last man-made diversion before
getting to their spawning grounds. A computerized piping system shunts
some into a room where they are anesthetized in a bath of
sweet-smelling clove oil. There, biologists examine them for marks
that tell more about their adventures.
Some
have "golden arches," crescent-shaped scars on their bellies
left by seal teeth. Others have red lines around their gills, showing
where they wriggled out of nets that would otherwise have suffocated
them.
"If
they weren't as flexible as they are, these species would have been
gone a long time ago," says Dr. Ferguson, the NOAA biologist.
Write to John J. Fialka at john.fialka@wsj.com
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