THE COLUMBIA BASIN BULLETIN:
Weekly Fish and Wildlife News
www.cbbulletin.com
November 11, 2011 Issue No. 598
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All stories below are posted on the CBB's website at
www.cbbulletin.com
Also available is a free RSS news feed.
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Table of Contents
* Researchers Study How White Salmon River Responds To Dam
Breaching; Right Now ‘Lots Of Mud’
http://www.cbbulletin.com/413964.aspx
* Canadian Officials Say ‘No Confirmed Cases’ Of Salmon Virus;
NOAA Doing Research, Response Report
http://www.cbbulletin.com/413963.aspx
* River Managers Mull Operations To Expand Spawning Area For
Listed Chum Below Bonneville Dam
http://www.cbbulletin.com/413961.aspx
* Economic Panel Compares Effectiveness Of Methods To Keep More
Water In-Stream For Fish
http://www.cbbulletin.com/413960.aspx
* Council, BPA Discuss Funding, Timing For Fixing Naches River
Fish Screen Impacting Listed Steelhead
http://www.cbbulletin.com/413959.aspx
* Research: Maintaining Natural River Temps In Flathead Basin
May Inhibit Spread Of Invasive Lake Trout
http://www.cbbulletin.com/413958.aspx
* Alaska 2011 Salmon Harvest Third Best Since 1975 At Over $600
Million In Value
http://www.cbbulletin.com/413957.aspx
* To Survive Climate Change, Ocean Fish Will Need Swim Faster,
Farther To Keep Pace With Shifts
http://www.cbbulletin.com/413956.aspx
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* Researchers Study How White Salmon River Responds To Dam
Breaching; Right Now ‘Lots Of Mud’
The flood loosed late last month when southwest Washington’s
Condit Dam was breached has literally coated the lower White
Salmon River in layers of various thickness of fine, dark
sediment.
But researchers predict that the river’s own dynamics make it a
prime candidate to clean itself and restore the coarser,
gravelly river bed needed for native fish to spawn and rear.
(See CBB, Oct. 28, 2011 “Blast Drains Condit Dam’s Reservoir On
White Salmon River; Dam Structure Removal Set For Spring 2012”
http://www.cbbulletin.com/413585.aspx)
“If you look at the White Salmon now…. It’s hammered,”
researcher Andrew Wilcox said. “If you go there now there’s a
lot of mud.”
The University of Montana assistant professor is leading a
research project aimed at assessing how the river “responds” to
the breaching of the dam and a return to a free flowing state.
“It’s a beautiful natural experiment,” Wilcox said of the
opportunity to monitor how the river moves large pulses of
sediment that have the potential to snuff out aquatic life.
The blasting of a tunnel through the base of Condit allowed the
release of sediment that had been collecting since the dam was
completed in 1913. It was estimated that between 1.6 million to
2.2 million cubic yards of sediment would be discharged into the
White Salmon River immediately following tunnel’s opening.
Wilcox and one of his graduate students will monitor the lower
White Salmon over the next two years to see how well it
refreshes itself. The study focuses on sediment transport, or
the lack thereof, as well as channel evolution, and habitat
response.
The researchers will try to use the data gathered there as well
elsewhere to develop a better understanding of how ecosystems
respond to such events. That information could be used in
planning such events in the future. The study is being funded by
the National Science Foundation.
Wilcox has been involved in similar research following the
breaching of Marmot Dam on the Sandy River in northwest Oregon
in 2007 and the Milltown Dam in western Montana in 2008.
“Reservoirs tend to trap sediment that is fine,” Wilcox said.
When the sediment is released it tends to settle into the
cobbled river bottoms that salmon and steelhead prefer for
spawning, and changes the depth of pools where fish seek
shelter. The study aims to monitor when, where and how that
sediment is deposited, and how soon the river might mend itself.
“How long do the changes last?” is a key question, he said.
“It is a system that is steep and confined and has a high
transport capacity,” Wilcox said of the White Salmon. The slack
water in the lowest part of the river “has less capacity to
clear.”
The best thing to do is hope for a wet winter.
“It’s supposed to be a La Nina year,” Wilcox said. If the
snowpack builds and strong flows develop in the spring, much of
the sediment and at least some of the logs dislodged from the
reservoir bottom should be swept downriver.
“I’m not going to say the system will be recovered by next
summer” but the spring freshet should send it well on its way,
Wilcox said.
The lower White Salmon River remains off limits as it has been
since before the Oct. 26 breach, which quickly drained
1.8-mile-long Northwestern Lake. The dam is located 3.3 miles
upstream from the river’s confluence with the Columbia River.
The river and its banks remains an unsafe place both above the
dam in the reservoir reach and below the dam, according to
PacifiCorp, which owns the dam. PacifiCorp, local law
enforcement and experienced river experts are unanimous in
urging the curious to stay away.
“Everyone saw the force of the river last Wednesday,” said Tom
Hickey, PacifiCorp’s project manager. “Now downstream wherever
the river narrows, there are logjams. In the former reservoir
above the dam, the river is cutting through the sediment
creating unstable slopes and moving debris such as buried logs
as expected.
“Transported sediment is also building up in downstream areas.
Working with our contractors, we have plans in place to deal
with these obstructions, and they all require that everyone stay
out of harm’s way and a safe distance from the river,” Hickey
said.
The company’s options for clearing debris include using cranes
and yarders or in some instances explosives to remove barriers.
The entire area from the Northwestern Lake Road Bridge to the
mouth of the White Salmon River continues to be an active
construction zone and a dangerous place to be.
“We are still a long way from anyone attempting to boat the
White Salmon River within the project area or downstream,” said
Thomas O’Keefe, Pacific Northwest stewardship director of
American Whitewater. “Those of us who know the river well urge
everyone to stay safe and out of this river area until next fall
when PacifiCorp has had a chance to complete the channel
restoration work and address the severe hazards affecting
navigability."
PacifiCorp will continue to post updates on closures and
restrictions in the Condit area as work proceeds. Go to
www.pacificorp.com/condit for updates. Signs will remain
posted in the immediate areas to remind the public about the
closures.
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* Canadian Officials Say ‘No Confirmed Cases’ Of Salmon Virus;
NOAA Doing Research, Response Report
National Oceanic and Atmospheric Administration Administrator
Jane Lubchenco has directed NOAA Fisheries to assemble a report
on Infectious Salmon Anemia – due by the end of November – that
will outline steps needed on surveillance, research and
response, including contingency plans for handling the potential
spread of the virus.
That was the word from a Sunday (Nov. 6) get-together at a
Seattle fish research lab where U.S. Sen. Maria Cantwell, D-WA,
joined officials to provide an update on heightened interagency
coordination to deal with a virus that they fear may threaten
Pacific Northwest salmon.
Cantwell and officials highlighted existing research and
surveillance and discussed the next steps needed to stay ahead
of the virus, including standardizing the methodologies for
testing for the salmon virus known as ISA.
Meanwhile, Canadian officials this week said that based on
analysis conducted by the Canadian Food Inspection Agency (CFIA),
in collaboration with Fisheries and Oceans Canada (DFO), the
province of British Columbia and the Atlantic Veterinary
College, “there have been no confirmed cases of ISA in wild or
farmed salmon in BC.”
Testing has been ongoing since mid-October, they said, when a
laboratory at the Atlantic Veterinary College reported that it
had detected the virus.
Officials said DFO has tested all 48 samples received as part of
the original reports and the results are all negative for the
virus.
“These results are consistent with the findings of an
independent laboratory in Norway, which also tested samples
associated with this investigation and provided a report to the
CFIA,” said the CFIA.
Additional testing continues and results will be provided when
ready, the agency said.
As part of the investigation, the CFIA and DFO are also looking
at how the samples were collected, handled, transported and
stored.
In Canada, infectious salmon anaemia is a "federally reportable
disease" in Canada. This means that all suspected or confirmed
cases must be immediately reported to the CFIA.
In another ISA development, Brian Wallace, senior commission
counsel for the “Cohen Commission of Inquiry into the Decline of
Sockeye Salmon in the Fraser River” issued the following
statement:
“Testing of samples of Pacific salmon from two areas of the
province has indicated the possible presence of the Infectious
Salmon Anemia (ISA) virus in several Pacific salmon. The
commission has been advised that further results will be
available in about one month. We have requested disclosure of
documents related to these fish and the current testing.
“The commission plans to convene a two-day hearing in
mid-December to put new information about the possible presence
of the ISA virus in BC on the commission’s record. Further
details, including any witnesses or exhibits for those days of
hearings, will be released later.”
The Cohen Commission (www.cohencommission.ca)
was established on November 5, 2009. It holds hearings to
investigate and report on the decline of sockeye salmon in the
Fraser River.
Based on its findings, the commission will make recommendations
for improving the future sustainability of the sockeye salmon
fishery in the Fraser River, including, as required, any changes
to the policies, practices and procedures of the Department of
Fisheries and Oceans in relation to the management of the Fraser
River sockeye salmon fishery.
The commission’s final report must be submitted on or before
June 30, 2012.
Canada’s federal Minister of Fisheries and Oceans, Keith
Ashfield said: “It has been a difficult few weeks for the
fishing industry in British Columbia, and across the country,
while waiting for these preliminary test results to come back.
Because some have chosen to draw conclusions based on
unconfirmed information, this has resulted in British Columbia’s
fishing industry and Canada’s reputation being put at risk
needlessly.
“Our government takes the health of our fisheries very
seriously. We have taken appropriate and immediate action to
follow up on the allegations of the presence of ISA in BC
waters. We can now confirm that, preliminary analysis, using
proper and internationally recognized procedures, has found that
none of the samples has tested positive for ISA.
In recent years, more than 5,000 fresh, properly stored and
processed salmon have been tested by the BC government and
Fisheries and Oceans Canada and there has never been a confirmed
case of ISA in British Columbia salmon. An active, science-based
sampling program continues for both farmed and wild salmon.”
British Columbia Minister of Agriculture Don McRae said: “It is
vitally important that we base our policy decisions on sound
science so as to preserve and protect BC’s reputation as a
reliable supplier of high quality seafood to the world. This is
particularly true for the dozens of coastal communities that
rely on wild and farmed fisheries to feed their families and
maintain their way of life. Reckless allegations based on
incomplete science can be devastating to these communities and
unfair to the families that make a living from the sea. Since
Premier Clark is currently on a trade mission to China, I have
personally asked her to reassure our valued trading partners
that now as always BC can be relied upon as a supplier of safe,
sustainable seafood.”
“Canadian and international partners can be confident that
current practices and procedures to protect our wild and farmed
salmon industries from disease are in place and working,”
Ashfield said. “I will be communicating directly with concerned
parties domestically and internationally over the coming weeks
to reassure my counterparts, the fishing industry and consumers
that BC salmon is healthy and safe."
Previous outbreaks of ISA in Chile and Norway did significant
damage to their fishing industries.
Washington’s Sen. Cantwell said the virus may pose a threat to
the Pacific Northwest salmon fishing industry and the coastal
economies that rely on it.
“Washington’s coastal economy, and the thousands of jobs they
support, deserves a rapid response to this potential threat,”
said Cantwell. “We need to act now with an aggressive action
plan to protect these Washington state jobs. Fortunately,
Washington is home to some of the most cutting-edge tools, like
the lab we’re at today, for dealing with this virus. I’ve called
on key Senate Appropriators to support a comprehensive plan
immediately.”
Last week, Cantwell, along with Sens. Lisa Murkowski, R-AK, and
Mark Begich, D-AK, sent a letter to key senate appropriators
calling for the federal government to independently test samples
of a recently detected salmon virus, and not rely on Canadian
testing.
The full letter can be found at
http://cantwell.senate.gov/news/110211_Salmon_Virus_Letter.pdf
The senators urged appropriators to prioritize the resources and
coordination necessary to address “this emerging salmon virus
threat.”
Cantwell’s amendment to investigate and develop a rapid respond
plan to prevent the spread of ISA passed the Senate by a vote of
69 to 30. The amendment was included in the minibus
appropriations bill (H.R. 2112). The next step will be a
conference of the House and Senate. It calls on the National
Aquatic Animal Health Task Force to evaluate the risk the virus
could have on wild salmon off West Coast and Alaskan waters,
ensure adequate monitoring of wild salmon populations, and to
develop a plan to address ISA.
The amendment requires a report be delivered to Congress within
six months which outlines surveillance, susceptibility of
species and populations, potential vectors, gaps in knowledge,
and recommendations for management.
The British Columbia Salmon Farmers Association this week said:
“Following up on unconfirmed results publicized widely by
anti-salmon farm campaigners four weeks ago, the CFIA tested the
same sample collection plus additional samples collected and had
no positive results for ISA.”
"This is a significant result for everyone involved:
researchers, regulators, wild salmon advocates, salmon farmers
and our coastal communities," said Mary Ellen Walling, executive
director of the BCSFA. "After seeing the original news
distributed in such an inflammatory way, we hope this update
will allay those concerns."
The BCSFA said that “the allegation that ISA had been found in
BC was concerning to BC salmon farmers who, while confident that
the extensive testing showed ISA is not on their farms, were
worried about the possible effect of the virus which is harmful
to Atlantic salmon. Pacific salmon are relatively immune to
ISA.”
"This is a good example of why proper sampling, testing and
reporting procedures are in place and should be followed: the
unconfirmed report from Simon Fraser appeared to be designed to
create as much hype as possible. This has cost significant
resources in time and money in emergency follow-up while also
potentially impacting international markets for our business,"
said Walling.
"We're pleased to see the thorough way CFIA is following up, but
are dismayed at the way campaigners used this to create fear
about our operations," said Walling.
The BCSFA said it “understands that the investigation by the
CFIA is continuing. The industry is providing any additional
information to the CFIA as needed. In the meantime, our farmers
continue in their regular, ongoing sampling/monitoring program.”
The BCSFA represents salmon farm companies and those who supply
services and supplies to the industry. Salmon-farming, says the
association, provides for 6,000 direct and indirect jobs while
contributing $800 million to the provincial economy each year.
For more information see CBB, Nov. 4, 2011 “Senators Call For
U.S. To Conduct Independent Testing To Assess Risk Of Salmon
Virus”
http://www.cbbulletin.com/413770.aspx and CBB, Oct. 21, 2011
“Researchers Say Lethal Marine Influenza Virus Found In Wild
Salmon Off British Columbia Coast”
http://www.cbbulletin.com/413445.aspx)
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* River Managers Mull Operations To Expand Spawning Area For
Listed Chum Below Bonneville Dam
Fishery managers are hoping for high chum salmon numbers and
high flows (precipitation plus) this late fall and winter to
enable Columbia River dam operators to create an expanded
spawning area for the threatened species below Bonneville Dam.
NOAA Fisheries’ Paul Wagner on Wednesday presented for
consideration a “framework” that would allow, -- “if fish
numbers of unspawned adult chum salmon are significant and
natural precipitation results in flow levels that require a
substantial increase in nighttime flow to maintain the 11.5 foot
daytime tailwater” -- an increase of the tailwater elevation to
12.5 feet during the last week in November, and to 13.5 feet in
December.
The system operations request was submitted Wednesday to the
Technical Management Team, which mulls federal Columbia-Snake
river hydro operations that might benefit fish. TMT is made up
of federal, state and tribal hydro and fish managers. NOAA
Fisheries is charged with protecting fish stocks, such as lower
Columbia chum, that are listed under the Endangered Species Act.
Higher tailwaters would inundate additional areas on Ives Island
just below the dam that have in the past been known as “very
desirable habitat” for chum, Wagner said.
That would help to “reduce the risk” to chum spawning
populations, Wagner said. A December shift to the 13.5 elevation
should not result in great numbers of fish spawning at the
higher elevation, he said. Peak redd density at Ives Island
typically occurs around Dec. 1 with a lesser number of spawners
arriving after that date.
“Higher tailwater through Bonneville will potentially increase
the amount of spawning habitat and change the locations of
suitable redds, and may provide additional returns to this
area,” according to the SOR, which was signed by NOAA Fisheries,
the U.S. Fish and Wildlife Service, the Oregon and Washington
departments of fish and wildlife, the Shoshone-Bannock Tribes
and the Columbia River Inter-Tribal Fish Commission.
Russ Kiefer, who represents the state of Idaho at TMT, said his
state supports the request but chose not to weigh in officially
as a signatory because Idaho is not involved in chum management.
The Columbia River chum populations are for the most part
confined to areas downstream of Bonneville, which is located at
river mile 146. Idaho bound salmon and steelhead must swim 400
miles and more up the Columbia and Snake rivers to reach their
destination.
Chum seek spawning areas that have upwellings of spring water
that are, generally, somewhat warmer that the surface water.
Higher tailwater elevations would then, ideally, be maintained
into April when juvenile chum emerge from the gravels.
Maintaining higher elevations can, depending on the available
water supply, reduce the flexibility of Bonneville and dams
upstream to be operated for power production and other fish
needs.
The Ives Island area is the target of the only hydro system
operational prescription outlined in NOAA Fisheries’ 2008
Federal Columbia River Power System specifically to benefit chum
salmon. It calls for the maintenance of a tailwater elevation
below Bonneville Dam of approximately 11.5 feet beginning the
first week of November (or when chum arrive) and ending by Dec.
31, in the area of the Ives Island complex and/or access to the
Hamilton and Hardy creeks, which feed into the Columbia in the
Ives-Pierce island area, for the spawning population. The goal
in recent years has been to keep the tailwater in the
11.3-11.7-foot range.
Thereafter TMT is charged with guiding operations, when
possible, that assure egg-filled chum redds remain underwater.
That involves calling on the resources of the system’s two main
storage reservoirs, Lake Roosevelt behind Grand Coulee Dam on
the mid-Columbia in central Washington and Lake Pend Oreille
behind Albeni Falls Dam on the Pend Oreille River in the
northern Idaho Panhandle. The Pend Oreille is a tributary to the
Columbia.
A primary limiting factor for chum operations is another BiOp
goal -- achieving a Lake Roosevelt elevation on April 10 that
represents the maximum amount of water storage allowed within
flood control constraints. Operators want to assure there is
enough space in the reservoir to protect against downstream
flooding, while holding as much water as possible for use later
in the spring and summer to augment flows for other salmon and
steelhead stocks that are migrating toward the ocean.
No decision was made Wednesday regarding the SOR, which offers
an off ramp if weekly updates long-range forecasts of water
supply take a turn for the worse.
“If these forecasts indicate that the 85 percent probability of
reaching the April 10 refill objective [at Grand Coulee] is at
significant risk, the tailwater elevation would be lowered to an
appropriate level,” the SOR says.
“Some additional risk [to the refill objective] exists by
placing redds at the higher elevations, but the numbers of redds
expected to be formed at these higher elevations will be low,
which will reduce the downside risk to the population if they
cannot be maintained through emergence,” the SOR says.
The raising of the tailwater elevation would depend on whether
wet weather, and wet forecasts, materialize.
“If not, we would likely abandon the higher elevation redds,
should they exist,” Wagner said.
“The recent completion of additional spawning habitat in the
Hamilton spring channel site should further reduce the risk to
chum salmon spawning in the Ives Island area,” the SOR said
restoration work that has taken place over the past year in the
nearby Hamilton spring area.”
Another goal of the proposed expansion of accessible habitat is
to reduce the incidence of superimposition of spawners, i.e.
redds being built on top of redds.
The SOR argues that raising the tailwater elevation to increase
the habitat area is worth a try, since Ives Island spawning
populations have been in decline since 2002, which was a
high-water mark, in terms of estimated spawning populations, at
most lower Columbia sites since officials began considering chum
for listing. The chum listed in 1999.
The Bureau of Reclamation’s John Roache said his agency would
not object to such an operation, as long as it was sure it could
still carry out planned operations of Grand Coulee. Likewise it
is important to the Bureau that it be able to fill Banks Lake
near Lake Roosevelt. Banks is used for irrigation during the
summer months. And the agency must have the ability to help
satisfy the Vernita Bar agreement, which outlines operations
needed to protect fall chinook redds and juveniles in the
Columbia’s Hanford Reach.
“We need to look at all of that stuff” before implementing such
an operation, Roache said.
Likewise Sherry Sears of the Confederated Tribes of the Colville
Reservation said the tribes would not support a Lake Roosevelt
drawdown to accomplish the SOR.
“We don’t want to jeopardize our resources to water an
additional 100 redds,” she said. The tribes are involved in the
management of chinook salmon and other species that call the mid
and upper Columbia home.
The Bonneville Power Administration’s Tony Norris was skeptical
about stepping up the Bonneville tailwater elevation based on a
few early-season rain events and forecasts.
“13.5 feet is a lot of water. I hope we don’t go there. You may
only be affecting a very few fish,” Norris said. “It doesn’t add
up for us.” BPA markets power generated in the federal
Columbia-Snake hydro system.
The overall chum spawning estimate 2002 for areas from
Interstate 205 and Portland up to Bonneville was 11,351. But
annual estimates have been generally been in decline since then.
The 2010 preliminary estimate is for a total spawning population
of 3,509, which was actually more than double the 2009 total.
But estimates from 2005-2008 were 2,000 or less.
The Ives area spawning population estimated was 4,466 in 2002,
according to data provided to TMT by Cindy LeFleur of the
Washington Department of Fish and Wildlife. That total dropped
to less than 2,000 in 2003, then fell off the table. Estimates
from 2004 through 2010 have been less than 400. The preliminary
2010 total was 214.
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* Economic Panel Compares Effectiveness Of Methods To Keep More
Water In-Stream For Fish
There’s no runaway winner, but it appears water transactions
such as rights purchases and leases may have an edge in
Columbia-Snake river basin efforts to keep more water in-stream
for the benefit of salmon and steelhead.
“It kind of looks like water transactions might be more cost
efficient” as compared to investments in less wasteful
irrigation delivery systems, according to John Duffield,
chairman of the Northwest Power and Conservation Council’s
Independent Economic Advisory Board.
Duffield on Tuesday previewed for the Council the IEAB’s review
of “the ways that improved irrigation efficiency, farm-to-stream
water transactions, and related agreements are used to increase
stream flows to improve fish habitat and promote fish recovery
in the Columbia River Basin,” according to an Oct. 25 memo from
Terry Morlan, director of the Council’s Power Planning Division.
The report’s executive summary can be found at:
http://www.nwcouncil.org/news/2011/11/4.pdf
The IEAB has recently received outside reviews of its draft
report “Cost-Effectiveness of Improved Irrigation Efficiency and
Water Transactions for In-Stream Flows for Fish.” Those comments
provided by other experts in the fields of irrigation efficiency
and water transactions are now being incorporated into the IEAB
document. The final draft of the report on the IEAB review is
expected to be completed sometime next month, according to
Morlan.
The IEAB was established in November 1996. Its aim is to use the
members’ expertise to helps improve the cost-effectiveness
analysis of fish and wildlife recovery measures implemented
through the NPCC’s Fish and Wildlife Program. The eight-member
IEAB is called on to assist with difficult economic issues
associated with the Council’s program.
Duffield is a research professor at the University of Montana
who specializes in environmental and natural resource economics
“Overall the evidence suggests that water transactions projects
offer greater potential than irrigation efficiency projects,”
according to the draft report’s executive summary. “Water
transactions contracts can be designed to assure conditions that
will protect fish whereas irrigation efficiency alone may not be
enough to protect fish in dry years.”
Duffield said the report cautions that in some cases reduction
in water diverted because of irrigation efficiency may be
diverted by others downstream such as more-junior water rights
holders that are not receiving their full allocation.
“Water transactions generally allow water users to decide how to
meet their contractual obligation at least cost. This decision
may include irrigation efficiency, crop idling, deficit
irrigation, internal water transfers, and other management to
minimize net revenue losses,” the summary says. “The locations
where a water transactions contract may be possible, and where
it will correspond to the need for improved fish habitat, appear
to be less restricted than in the case of irrigation efficiency
projects.
“However, one drawback of water transactions projects should be
noted. Water transactions projects generally involve a reduction
in crop production with corresponding local economic effects,
and this has led to resistance to water transactions projects in
small rural communities that are reliant on a healthy farm
economy.”
The report includes eight case studies involving an examination
of the relative cost-effectiveness of irrigation efficiency
projects compared to alternative approaches to improve in-stream
flow to benefit fish populations. Those case studies include
Lemhi, Yakima, Salmon Creek, Upper Grande Ronde, Walla Walla,
Deschutes, Hood, and Blackfoot river basins.
The case studies reveal that both irrigation efficiency projects
and water transaction projects have been used successfully to
achieve an increase in in-stream flow at times and in locations
where the fish habitat is impaired.
“Costs for these improvements range widely among the projects
sampled; many irrigation efficiency and water transactions
projects undertaken in the past decade have achieved these
in-stream-flow increases at costs below” $50 per acre foot, the
report says. Just which is more economical largely depends on
the basin in which the water savings effort is carried out.
The case studies did show that water saving projects funded by
the Bonneville Power Administration through the Council’s fish
and wildlife program are “doing some good,” Duffield said.
Central Idaho’s Lemhi River basin, as an example, saw salmon
runs beginning to collapse in 1960s and 1970s because of
degraded habitat. And irrigation needs that blossomed to 37,000
acres by the mid-1990s caused further problems. Most of that
irrigation, 80 percent, involved flooding fields and pastures,
with the loss of 25 to 30 percent of the water in transit into
the ground and via evaporation. Streambeds were often completely
dry in late summer, Duffield said.
The number of salmon redds counted in the basin sunk into the
single digits in the 1990s.
But from 2004-2011 BPA spent $414,000 on eight pipeline programs
to reduce water loss and $2,329,000 on 18 sprinklers in the
upper Salmon drainage, which includes the Lemhi. The Columbia
Basin Water Transactions Program, also funded by Bonneville,
cooperated with Idaho Water Board and Idaho Legislature in
creation of Lemhi Water Bank
Water right leases were obtained to assure that the river didn’t
go dry. And lo and behold, officials saw the counts “go from a
very few number of redds to an order of magnitude higher,”
Duffield said. There were 91 redds counted in Lemhi in 2009 and
89 counted in 2010.
“This is the kind of thing we need to see more of,” Washington
NPCC member Tom Karier said after hearing Duffield’s
presentation. The Lemhi example “is a great confirmation that
that kind of program works.”
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* Council, BPA Discuss Funding, Timing For Fixing Naches River
Fish Screen Impacting Listed Steelhead
With a fish and wildlife spending ramp up expected to continue
in 2012 and beyond, the Bonneville Power Administration has said
it must go slow in deciding whether to fund a $575,000
irrigation diversion improvement project in central Washington
that is intended to benefit threatened Mid-Columbia River
steelhead.
The Northwest Power and Conservation Council on Wednesday
recommended that the project be funded by BPA with funds from a
$2 million, Fiscal Year 2012 earmark for work responding to
requirements of NOAA Fisheries’ 2008 Federal Columbia River
Power System biological opinion.
Bonneville, which owns the existing Gleed fish screen on the
Naches River and pays for its operation and maintenance, has
said it will defer judgment on whether to fund the renovation of
the screen this coming summer, or push it off into fiscal year
2013, or split the cost between years. The Naches is a tributary
to the Yakima River, which feeds into the Columbia River.
BPA, which markets power generated in the federal Columbia-Snake
river hydro system (the FCRPS), funds fish and wildlife projects
as mitigation for the impacts of the dams. It is also
responsible for supporting the recovery of salmon and steelhead
that have been affected by the hydro system. Thirteen Columbia
basin salmon and steelhead stocks, including Mid-Columbia
steelhead, are listed under the Endangered Species Act. NOAA
Fisheries’ ESA BiOp outlines actions intended to improve the
survival of fish that migrate up and down through the FCRPS.
Much of the fish and wildlife work funded by Bonneville is
channeled through the NPCC’s Columbia River Basin Fish and
Wildlife Program, drawing review from the Council and its
Independent Scientific Review Panel. The $575,000 “within-year”
budget request from the Bureau of Reclamation and Washington
Department of Fish and Wildlife aims to make improvements to the
Gleed fish screen, which is intended to keep fish out of
irrigation diversions.
“The renovation associated with the Gleed fish screen was
initiated to improve approach velocities at screens, improve
maintenance crews’ ability to manage debris, and address bypass
flow for fish and debris passage,” according to an Oct. 27 memo
from the NPCC’s project implementation manager, Mark Fritsch.
“Currently, passage deficiencies exist with the majority of the
spring smolt outmigration period. These deficiencies are caused
by the inability of the current facility to handle the amount of
debris during high-flow periods (i.e., spring run-off). During
these high-flow periods fish passage criteria are not being met
when velocities become too great and/or they get entrapped in
the canals.”
BPA Fish and Wildlife Director Bill Maslen told the Council and
its Fish and Wildlife Committee Tuesday and Wednesday that the
project is a priority, but not necessarily the highest of
priorities.
“The improvement is not required by the BiOp” specifically,
Maslen said. Rather it is included in a more general BiOp
“reasonable and prudent alternative” that calls for tributary
habitat quality and fish survival improvements.
More “explicit” BiOp requirements, such as estuary habitat
improvements, are looming and may command the budget.
Maslen said that in the past the NPCC and Bonneville have always
managed to keep spending well within annual limits. But that
ability is being challenged by increased requirements stemming
from the BiOp. In 2011, expenditures totaled $221 million, just
below the fiscal year’s $225 million budget.
“Our October spending is higher than we’ve ever seen,” Maslen
said of the first month of the 2012 fiscal year. That reflects a
“ramp up of both BiOp and Accord projects.”
A planned expansion of the budget to, primarily, answer BiOp
needs and those of funding “accords” signed with states and
tribes has been scaled back as a result of the most recent BPA
“rate case,” Maslen said. That evaluation of costs, which is
done to determine what wholesale rates the agency must charge
for power, saw a $237 million fish and wildlife budget penciled
in for FY 2012, as opposed to a prior estimate of $250 million,
and a $241 million budget for 2013, down from a earlier
projection of $254 million.
Washington Council member Phil Rockefeller noted that BPA has “a
clear legal obligation to get this done” under the terms of a
1994 memorandum of agreement signed by Bonneville, the Bureau
and WDFW.
“This has been a problem for years,” Rockefeller said of fish
having to negotiate the debris in the clogged screen. “Is this
the beginning of a Bonneville retrenchment” on its
responsibility to pay for such projects?
Maslen stressed that it is a potential deferral of project
implementation, not a backing off of Bonneville’s commitment. He
said his agency needs more time before making a decision about
whether to launch construction in 2012.
“BPA supports the proposal but defers of implementing the change
request at this time,” according to an Oct. 24 letter from
Maslen to the Council. “The facility has operated under such
conditions since inception in 1993, and generally provides
reasonable conditions except under high flow events. While
continuing to operate in this manner is not preferred, and we
want to support the improvements when funds are available, we
are not prepared at this time to make the funding commitment
given other higher priorities for available funds.
“Although BPA and the Council have supported previous change
requests leading to the current one, we simply find the current
financial situation too constrained to fund the final phases of
Gleed, including construction, at this time,” Maslen wrote. “The
Gleed within-year request represents one of those difficult
project funding decisions BPA must make to ensure funds are
available for the highest priority actions, and that we manage
spending within the available budget.”
The Bureau made the request to complete environmental
compliance, design and construction of the Gleed Fish Screen.
The final design is near complete for changes that will address
deficiencies that have caused the screen to operate out of NMFS
criteria for the majority of the spring smolt outmigration
period since the screen was installed in 1993, according to
Maslen’s memo. The re-design was developed by BOR and has been
reviewed and approved by stakeholders including WDFW, NOAA,
Yakama Nation and irrigation districts associated with the Gleed
Canal.
------------------------
* Research: Maintaining Natural River Temps In Flathead Basin
May Inhibit Spread Of Invasive Lake Trout
A recently published research paper suggests that maintaining
natural temperatures on Montana's Flathead River system may
inhibit the movements of invasive lake trout to upstream waters.
The study was based on an analysis of telemetry data collected
from 1996 through 1998 from radio-tagged lake trout for the
purpose of learning more about their predatory tendencies, said
Clint Muhlfeld, an aquatic ecology researcher with the U.S.
Geological Survey who is based at Glacier National Park.
With more than 200 waters in the western United States occupied
by lake trout, many of them connected to rivers and other lakes,
there has been a growing interest in how the species disperses,
Muhlfeld said.
“No one had really looked at or discussed the dispersal
capabilities of lake trout in interconnected lake and river
systems,” he said, adding that data collected for the study
showed “enormous” invasive capabilities of lake trout that now
occupy most of the lakes on the western front of Glacier
National Park.
Mysis shrimp that were introduced in the Flathead Basin from
1968 to 1976 are widely regarded as the cause of a lake trout
population boom in Flathead Lake that reached a point where the
species started to radiate into upstream waters.
“The incidence of lake trout entering the Flathead River was
rarely observed prior to 1989, yet angler creel data suggested
that lake trout use of the Flathead River substantially
increased in the 1990s,” states the study published in the
Fisheries Management and Ecology Journal. “Changes in the
thermal characteristics of the Flathead River also may have
affected lake trout distribution in the system.”
Lake trout widely used the river system during summer months
prior to the 1996 installation of a selective withdrawal system
at Hungry Horse Dam that allowed river temperatures to be
regulated by drawing warmer water from Hungry Horse Reservoir.
The new system basically restored natural temperatures below the
dam in river reaches that had previously been artificially
cooled during summer months.
An analysis of the movements of radio tagged fish found they
used the river during summer considerably less after the
selective withdrawal was installed.
“Lake trout were detected in the river primarily during autumn,
winter and spring, when water temperatures were cool,” the study
states. “By contrast, fewer were detected when temperatures were
warmest during summer and during high spring flows.”
The study concludes that maintaining natural water temperatures
may be effective in “reducing the spread of non-native lake
trout to conserve native fish populations in the Flathead River
system and elsewhere.”
Muhlfeld said one aspect of lake trout he considers important is
“enormous” dispersal capabilities that have had major impacts
upstream from Flathead Lake, all the way into Glacier Park lakes
and Canadian waters.
A rapid invasion of Glacier’s Quartz Lake has prompted an effort
to suppress lake trout over the last few years.
Gill netting in the spring and fall has removed 1,600 lake trout
so far on the 900-acre lake, and this fall’s five-week effort
resulting in nets capturing all six adult “Judas fish” that were
radio tagged and tracked to two distinct spawning locations.
Because those fish were removed, it is believed that there was a
high rate of success in removing adults that are still in the
lake.
A fish barrier downstream from the lake is expected to prevent
future invasions, and Muhlfeld is optimistic that the project
will be successful in suppressing the lake trout population and
protecting native bull trout and westslope cutthroat trout that
are still abundant in the lake.
--------------------------
* Alaska 2011 Salmon Harvest Third Best Since 1975 At Over $600
Million In Value
The Alaska Department of Fish and Game says the preliminary
estimate of the exvessel value of the 2011 Alaska commercial
salmon harvest is $603 million.
That’s the third most valuable harvest since 1975, behind the
1988 and 2010 harvests respectively.
Analysts expect the 2011 harvest will surpass the 2010 harvest
in value, after final price per pound information is received
next spring from processors, buyers, and direct marketers.
While the 176 million salmon harvested in 2011 -- ninth largest
since 1960 -- fell short of the 203 million predicted, high
prices for all species, especially pink and chum salmon, pushed
the value of the harvest to an extraordinary level.
The pink salmon harvest, valued at over $170 million, set an
all--time record.
Chum salmon fetched $93 million, the third highest value ever
recorded.
Sockeye salmon were worth almost $296 million, a respectable
sixth place among historic sockeye harvests.
Chinook and coho harvests, at $20 and $23 million, fell more
toward the middle of their historic ranges.
Regionally, Southeast Alaska took first place with the most
valuable salmon harvest in the state, worth over $203 million:
$92 million from pink salmon and $65 million from chum salmon.
Bristol Bay, usually the most valuable salmon fishery in the
state, came in second with a harvest worth $137 million, and
Prince William Sound took third with a harvest worth $101
million, mostly from pink and sockeye salmon. Chignik and Cook
Inlet also had unusually valuable fisheries, resulting from
strong sockeye returns to those areas.
A table with information on harvests, average weights, and
prices by species for each management area, can be found at:
http://www.adfg.alaska.gov/static/fishing/PDFs/commercial/11exvesl.pdf
----------------------------------
* To Survive Climate Change, Ocean Fish Will Need Swim Faster,
Farther To Keep Pace With Shifts
Fish and other sea creatures will have to travel large distances
to survive climate change, international marine scientists have
warned.
Sea life, particularly in the Indian Ocean, the Western and
Eastern Pacific and the subarctic oceans will face growing
pressures to adapt or relocate to escape extinction, according
to a new study by an international team of scientists published
in the journal Science.
“Our research shows that species which cannot adapt to the
increasingly warm waters they will encounter under climate
change will have to swim farther and faster to find a new home,”
according to a team member, professor John Pandolfi of the ARC
Centre of Excellence for Coral Reef Studies and The University
of Queensland.
Using 50 years’ data of global temperature changes since the
1960s, the researchers analyzed the shifting climates and
seasonal patterns on land and in the oceans to understand how
this will affect life in both over the coming century.
“We examined the velocity of climate change (the geographic
shifts of temperature bands over time) and the shift in seasonal
temperatures for both land and sea. We found both measures were
higher for the ocean at certain latitudes than on land, despite
the fact that the oceans tend to warm more slowly than air over
the land.”
The finding has serious implications especially for marine
biodiversity hotspots – such as the famous Coral Triangle and
reefs that flourish in equatorial seas, and for life in polar
seas, which will come under rising pressure from other species
moving in, the team says.
“Unlike land-dwelling animals, which can just move up a mountain
to find a cooler place to live, a sea creature may have to
migrate several hundred kilometers to find a new home where the
water temperature, seasonal conditions and food supply all suit
it,” Pandolfi says.
Under current global warming, land animals and plants are
migrating polewards at a rate of about 6 kilometers a decade –
but sea creatures may have to move several times faster to keep
in touch with the water temperature and conditions that best
suit them.
Another team member, associate professor Anthony Richardson from
the School of Mathematics and Physics at the University of
Queensland, became interested in how species might respond to
climate change during his work on a global synthesis of marine
climate impacts.
He says, “We have been underestimating the likely impact of
climate change on the oceans.”
As a general rule, it seems sea life will have to move a lot
faster and farther to keep up with temperature shifts in the
oceans. This applies especially to fish and marine animals
living in the equatorial and subarctic seas, and poses a
particular issue both for conservation and fisheries management.
Richardson explains, “There is also a complex mosaic of
responses globally, related to local warming and cooling. For
example, our analysis suggests that life in many areas in the
Southern Ocean could move northward.”
However, as a rule, they are likely to be as great or greater in
the sea than on land, as a result of its more uniform
temperature distribution.
The migration is likely to be particularly pronounced among
marine species living at or near the sea surface, or subsisting
on marine plants and plankton that require sunlight – and less
so in the deep oceans.
“Also, as seas around the equator warm more quickly and sea life
migrates away – north or south – in search of cooler water, it
isn’t clear what, if anything, will replace it,” Pandolfi adds.
“No communities of organisms from even warmer regions currently
exist to replace those moving out.”
At the same time, sea life living close to the poles could find
itself overwhelmed by marine migrants moving in from warmer
regions, in search of cool water.
The team’s future research will focus on how different ocean
species respond to climate change and they are compiling a
database on this for the Intergovernmental Panel on Climate
Change.
*******************************
For more information about the CBB contact:
-- BILL CRAMPTON, Editor/Writer,
[email protected], phone:
541-312-8860 or
-- BARRY ESPENSON, Senior Writer,
[email protected], phone:
360-696-4005; fax: 360-694-1530
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