THE COLUMBIA BASIN BULLETIN:
Weekly Fish and Wildlife News
www.cbbulletin.com
April 27, 2012
Issue No. 618
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Table of Contents
* ‘I Think We Need To Take Those Dams Down’: Judge Redden’s
Interview Comments Stir Reaction
http://www.cbbulletin.com/419993.aspx
* Oregon Wants Access To ‘Lethal Management Tools’ In Reducing
Salmon-Eating Cormorant Numbers
http://www.cbbulletin.com/419992.aspx
* Briefs Filed Defending Sea Lion Removal; Oral Arguments May 15
On Preliminary Injunction Request
http://www.cbbulletin.com/419991.aspx
* Boat Crowding At Wind River Mouth Prompts Wider Fishing
Boundary; Spring Chinook Counts Rising
http://www.cbbulletin.com/419990.aspx
* Gorge Hatcheries Release 10 Million Plus Juvenile Salmon Past
Week; More Transferred For Recovery Programs
http://www.cbbulletin.com/419989.aspx
* Umatilla Tribes This Spring, Summer To Measure Success Of
Lamprey Reintroduction, Dam Passage
http://www.cbbulletin.com/419988.aspx
* Gathering Celebrates Completion of Tribes’ In-Lieu Dallesport
Treaty Fishing Access Site; 31st Built By Corps
http://www.cbbulletin.com/419987.aspx
* Culvert Work Set For This Year To Aid Wild Salmon, Steelhead
In Portland’s Johnson Creek
http://www.cbbulletin.com/419985.aspx
* Colville Tribes’ Traditional Fishing Gear Efforts Anticipate
Rising Salmon Numbers From New Hatchery
http://www.cbbulletin.com/419984.aspx
* NW Utilities Forecast Report Says ‘Gaps To Fill’ In Next
Decade To Meet Winter, Summer ‘Peak’ Loads
http://www.cbbulletin.com/419983.aspx
* Researchers Unveil New Seafloor Mapping Of Oregon’s Nearshore;
Data For Fishing Industry, Marine Planners
http://www.cbbulletin.com/419982.aspx
* Research Shows Aquaculture Salmon Feed Includes Wild, ‘High
Trophic Level’ Fish
http://www.cbbulletin.com/419981.aspx
--------------------------------------
* ‘I Think We Need To Take Those Dams Down’: Judge Redden’s
Interview Comments Stir Reaction
In a retrospective interview with Idaho Public Television
previewed this week, the long-time presiding federal judge in
the Columbia River basin’s salmon recovery debate said efforts
may to this point have fallen short by assuming dam breaching is
not an option.
“I think we need to take those dams down….,” James A. Redden
said during an interview with reporter Aaron Kunz for Idaho
Public Television that was excerpted this week by
Earthfix.opb.org.
“And I’ve never ordered them you know – or tried to order them
that you’ve gotta take those dams down. But I have urged them to
do some work on those dams… and they have,” Redden said of the
federal dams operated by the U.S. Army Corps of Engineers.
During the interview Redden also said that fish survival
statistics has shown that the spilling of water at hydro
projects in spring and in summer for fish passage, as mandated
by the court in recent years, “has been very helpful.”
The federal judge, who has for nearly 10 years held federal feet
to the fire over Columbia-Snake river basin salmon protection
efforts, said in interview excerpts released this week that he
is perplexed that lower Snake dam breaching has been dismissed
as a recovery tool.
“It’s a lot easier than putting them up,” the judge said of
breaching the dams.
The Corps of Engineers, which operates the dams, could “dig out
the ditch and let it [the river] go around,” Redden said of the
dams.
The four lower Snake dams, completed in the 1960s and 1970s,
swamp what was prime spawning habitat for, particularly, fall
chinook salmon. But even with breaching of the four dams upriver
passage to much of the fall chinook’s historic habitat would
remain blocked just upriver at the Idaho Power Company’s Hells
Canyon Complex along the Idaho-Oregon border.
In a Nov. 22, 2011 e-mail to litigants, Judge Redden asked that
the lawsuit over the validity of the federal salmon protection
strategy – the 2008 Federal Columbia River Power System
biological opinion -- be assigned to another judge. The NOAA
Fisheries BiOp judges whether the federal dams jeopardize the
survival of 13 Columbia/Snake river salmon and steelhead stocks
whose wild portions are protected under the Endangered Species
Act.
“At our last meeting I indicated that I would step down prior to
the filing of the 2014 BiOp,” Redden said in the November
e-mail. He was referring to a FCRPS BiOp that now is being
developed by NOAA Fisheries -- in official ESA “consultation”
with federal agencies that operate the Columbia-Snake River
Power System -- to replace a 2008/2010 version. Those agencies
include the Corps and Bureau, which operate the Columbia/Snake
river dams, and the Bonneville Power Administration, which
markets hydro power generated in the system.
Redden ruled in August 2011 that the 2008/2010 FCRPS BiOp, which
was to prevail for 10 years, was illegal and ordered that its
legal flaws be corrected by Jan. 1, 2014. BiOps are required
under the ESA to evaluate whether federal actions, such as the
operation of the dams, jeopardize listed stocks.
Redden said he stepped down in order to allow a new judge “to
review the history of this matter before the 2014 BiOp is
filed.”
“I will follow this matter with great interest,” Redden wrote.
The court announced shortly thereafter that the case had been
reassigned to Judge Michael Simon.
“I struck the 2000 BiOp, and the 2004 BiOp, and the 2008/2011
BiOp,” said Redden, who was assigned the case in February 2003.
In May 2003 Judge Redden granted motions for summary judgment
invalidating the 2000 strategy, which was replaced by the 2004
BiOp. On May 2005 Redden declared the 2004 BiOp “arbitrary and
capricious.” It was eventually replaced by the 2008 BiOp, which
was supplemented in 2010.
The long-running lawsuit has pitted a coalition of fishing and
conservation groups against the federal government but has also
involved tribes, utility interests, irrigators, navigators and
others with a vested interest in the fish and/or other river
resources.
U.S. Rep. Doc Hastings, R-WA., the congressman from the
southeast Washington district where the four dams are found,
immediately blasted the judge for his comments. The House
Natural Resources Committee chairman is a strong-voiced opponent
of dam removal.
“This interview candidly reveals the activist bias of Judge
Redden that I and many in the Pacific Northwest have suspected
for years. Due to his personal views, this one judge
unilaterally dragged and drove costly litigation on for nearly a
decade,” Hastings said in a statement released Thursday
“He ignored clear and sound science that salmon species are
returning in numbers greater than before these dams were built,
and forced taxpayers to pay for millions of dollars in higher
energy bills and lawyers’ fees,” Hastings said of Redden. “He
ordered the waste of tens of millions of dollars by forcing the
spilling of water past dams that science reveals has benefited
few, if any, fish, and may have actually harmed them.
“This one politician-turned-judge kept pursuing his agenda and
imposing his own views over the policies of the elected
Presidential Administrations of Bill Clinton, George W. Bush and
Barack Obama.
“Judge Redden’s bias is being used to further this radical
agenda just months after he announced his retirement from the
case and as a new, hopefully partial, judge has been appointed
to oversee the endless and unclear future of litigation he
perpetuated.
“It’s time for the endless litigation and radical agendas --
bolstered by one man’s personal views and grip on a judge’s
gavel -- to stop and to ensure that the Northwest will be given
certainty that a plan supported by states, tribes and others
will be approved to ensure that dams keep producing clean,
renewable hydropower and allow for abundant salmon for
generations to come,” Hastings said.
Executive director Terry Flores of Northwest RiverPartners,
which represents port, shipping and hydro power interests, also
disagrees with Redden when it comes to the issue of taking down
the lower Snake River dams.
“Judge Redden’s remarks do provide insight into why no salmon
plan, no matter how comprehensive, collaborative, scientifically
sound or expensive met with his complete approval since they did
not include removal of the Snake River dams,” Flores said. “It
would appear that nothing short of an extreme action like dam
removal would have satisfied the judge.
“Further, dam removal was not an issue before the court, nor
could it be ordered by the court. Only Congress has that
authority.
“We are astonished at Judge Redden’s lack of appreciation for
the value of the Snake River dams to the Northwest. There is
simply no question that the Snake River dams are a tremendous
resource for the region, generating enough clean renewable
energy to power a city the size of Seattle,” Flores said. “And
let’s not forget those dams provide irrigation for farmers to
grow and ship crops that feed the Northwest and the world.
“Despite the judge’s comments, there is simply no disputing
reality: the salmon plan is based in the best possible science,
as confirmed in an independent science review by the Obama
Administration and world class scientists; it was developed in
an unprecedented collaboration that continues today; and it is
the most comprehensive and expensive plan to help endangered
species anywhere in the country, Flores said.”
Save Our Wild Salmon policy director Nicole Cordan said the
judge was on the right track.
“Judge Redden agrees with what we have known for years: that the
river needs to run more like a river if we are going to save
wild salmon. His remarks highlight a need to bring stakeholders
together and discuss options, including lower Snake River dam
removal, in a collaborative and science-based forum,” Cordan
said.
“Removing the lower Snake dams is the measure most likely to
restore wild Snake River salmon,” according to Doug DeHart,
former chief of Fisheries for the Oregon Department of Fish and
Wildlife. “The judge knows it, scientists and economists know
it, conservationists know it. The only real question now is why
don’t the federal agencies know it?
“The endorsement is great news for thousands of businesses in
the Pacific salmon states, as salmon restoration is responsible
for jobs from California to Alaska,” DeHart said.
“The judge’s statements call into question the federal agencies
interpretation of the ruling from last August that they’re on
the ‘right track,’” said Glen Spain of Pacific Coast Federation
of Fishermen’s Associations. “Clearly the judge intended for
more serious revisions to the illegal BiOp.”
Meanwhile, late last fall the coalition of fishing conservation
groups led by the National Wildlife Federation and the state of
Oregon, which are plaintiffs in the lawsuit, and ally Nez Perce
Tribe, criticized the federal government’s progress report on
2010 implementation of 2008/2010 BiOp measures.
Those requests said “... NWF respectfully asks the Court to take
two steps, both within the context of the current remand, to
bring sufficient accountability to the remand to ensure that it
results in a scientifically sound and legally adequate revised
biological opinion.” Those requested steps would involve the
appointment of a settlement judge and the creation of an
independent science panel to review the work being done to
repair NOAA Fisheries’ BiOp.
The federal government responded by asking the judge to
“decline” the requests, insisting that the process in place for
fortifying the BiOp is well on its way to satisfying the judge’s
concerns about the government’s strategy for boosting salmon
stocks.
Judge Simon has not yet to responded to the requests.
Redden was nominated to U. S. District Court, District of
Oregon, by Jimmy Carter in December 1979 and received his
commission on Feb. 20, 1980. He served as chief judge,
1990-1995, and assumed senior status on March 13, 1995.
Judge Redden was involved in private practice in Medford, Ore.,
from 1956-1972 and during that time served as an Oregon state
representative (1963-1969) and as House minority leader
(1967-1969). He was chairman of the state Public Employee
Relations Board from 1969-1972; state treasurer for Oregon in
1973-1976, and state attorney general from1977-1980.
For more information go to:
CBB, Aug. 5, 2011, “Redden Orders New Salmon BiOp By 2014; Says
Post-2013 Mitigation, Benefits Unidentified”
http://www.cbbulletin.com/411336.aspx
CBB, Dec. 2, 2011, “Redden Steps Down; Allows New Judge Simon To
Review Salmon Litigation Before 2014 BiOp Filed”
http://www.cbbulletin.com/414468.aspx
CBB, Dec. 9, 2011, “Salmon BiOp Plaintiffs’ Urge New Judge To
Consider Settlement Judge, Science Panel”
http://www.cbbulletin.com/414646.aspx
For documents related to BiOp litigation go to
www.salmonrecovery.gov
---------------------------
* Oregon Wants Access To ‘Lethal Management Tools’ In Reducing
Salmon-Eating Cormorant Numbers
The state of Oregon is sending out word that it wants to have
more management options in dealing with the double-crested
cormorants -- including shooting the big birds – to control
impacts on hatchery-produced and wild juvenile salmon that
stream into estuaries along the coast.
The cormorants based at the Columbia River estuary’s East Sand
Island last year ate an estimated 22.6 million salmon that
originated from hatcheries and spawning grounds upstream in
Idaho, Oregon and Washington.
Back at the turn of the century only a few thousand
double-crested cormorants nested at East Sand. But the number
stair-stepped upward from about 5,000 in 1997 to nearly 14,000
in 2006 before leveling off, relatively. The population
estimates in 2010 and 2011 were about 13,600, according to
researchers.
Now federal entities are working with tribes and states to
develop a management plan that would aim to reduce predation on
salmon in the lower Columbia estuary. Any such plan would likely
attempt to reduce the size of the colony, which stands in the
way of 13 salmon and steelhead stocks that are protected under
the Endangered Species Act.
Cormorant colonies along the Oregon coast are smaller. In 2009,
an estimated 2,384 breeding pairs of double-crested cormorants
nested at 22 colony sites along the Oregon coast, according to a
research report prepared by Jessica Y. Adkins and Daniel D. Roby
of the U.S. Geologic Survey’s Oregon Cooperative Fish and
Wildlife Research Unit at Oregon State University. That was
judged a modest increase from the 2003 and 2006 estimates of
2,216 and 1,903 breeding pairs at 24 and 21 colony sites,
respectively.
Overall, breeding numbers during 2003-2009 in coastal Oregon are
lower than the 1988-1992 estimate of 2,939 breeding pairs at 19
colony sites, the report says.
There has long been commentary, anecdotal evidence, from fishers
about the birds plundering hatchery produced fish, as well as
wild, listed stocks, emerging from such coastal streams as the
Alsea River. But the fishery managers have no scientific data
verifying the double-crested cormorants’ impact on salmon along
the coast, according to Lindsay Adrean, ODFW’s avian predation
coordinator.
For the first time this year ODFW obtained a permit for
scientific purposes under the Migratory Bird Treaty Act to kill
as many as 50 cormorants at coastal colonies in order to plumb
their bellies “so we can learn for sure what these birds are
eating.”
The idea is to build a baseline that describes population and
diet trends. The diet data will help evaluations of hazing’s
effectiveness, or if it is even needed at all. That baseline
data will also help measure the ripple effect of management
actions at East Sand. Researchers at both ends are expected to
be monitoring the movements of cormorants that might be
displaced from the estuary island.
The state is also preparing an application to the U.S. Fish and
Wildlife Service, which is charged under the act with protecting
he birds, for a depredation permit that would allow the lethal
removal of up to 285 birds in total annually from cormorant
colonies in the Tillamook, Rogue and Umpqua rivers. The
application would request authority for the taking of up to 10
percent of the breeding population at any one colony.
Adrean said such a permit would serve as an additional tool to
supplement hazing activities and control bird populations.
“It’s not birds against salmon. It’s about finding a balance”
that would allow both fish and birds to flourish, Adrean said.
The birds wing in each spring to nest and spend the summer and
most of the fall.
Meanwhile Oregon has commented in a process aimed at scoping out
the details for a “supplemental environmental impact statement”
that would ultimately be prepared by the USFWS. That EIS would
lead to revised regulations regarding double-crested cormorant
management.
Under current regulations, cormorant damage management
activities are conducted annually at the local level by
individuals or agencies operating under USFWS depredation
permits, the existing Aquaculture Depredation Order, or the
existing Public Resource Depredation Order. The depredation
orders are scheduled to expire on June 30, 2014.
The revision would update an order issued in 2003 that allows
the control of double-crested cormorants without a permit by
certain government agencies in 24 midwestern and eastern states.
“The ODFW requests that Western DCCO issues be included in the
NEPA process,” according to comments signed by Oregon Department
of Fish and Wildlife’s Wildlife Division Administrator Ron
Anglin.
The April 5 letter said the “ODFW is highly concerned about the
negative impacts of DCCOs on fish resources in Oregon, and would
like to maximize the State’s ability to manage DCCO conflicts my
improving the accessibility of lethal management tools.”
“There is also concern regarding economic impacts due to the
loss of hatchery production and the loss of the contribution of
angling to local economies.
“The ODFW invests more than $30 million annually in hatchery and
habitat restoration programs to fuel healthy, sustainable wild
and hatchery fish populations capable of supporting fisheries in
Oregon,” the ODFW letter says.
“Past efforts to reduce DCCO impacts on fish resources using
non-lethal management along has proved insufficient in Oregon,”
Anglin said.
-----------------------------------
* Briefs Filed Defending Sea Lion Removal; Oral Arguments May 15
On Preliminary Injunction Request
NOAA Fisheries “provided reasoned interpretations” of Marine
Mammal Protection Act provisions earlier this year in granting
the states of Idaho, Oregon and Washington authority to kill
California sea lions that are known to be preying on wild salmon
stocks in the lower Columbia River, according to recent federal
court filings.
The statement filed by the U.S. Department of Justice says that
because NOAA Fisheries provided a “cogent explanation” for its
action, federal law requires that courts give the agency
deference and uphold its decision.
The federal government and Northwest states and tribes all
weighed in April 20 in response to an April 6 request to the
U.S. District Court that it issue a preliminary injunction to
stop sea lion removals while a lawsuit filed earlier by the
Humane Society of the United States plays out.
The states were granted lethal removal authority under the
MMPA’s Section 120 on March 15. The NOAA Fisheries Service
decision was immediately challenged with a complaint filed March
19 by HSUS. The letter of authority said as many as 92
California sea lions could be removed annually for the next five
year without causing harm to what has been a growing sea lion
population.
The states have said that curbing sea lion consumption is a
necessary part of an overall effort to improve the lot of
protected salmon and steelhead. In all 13 stocks that call the
Columbia-Snake river basin home are listed under the Endangered
Species Act. The California sea lions are protected under the
MMPA but are not ESA listed.
Section 120 allows under certain circumstances, and with federal
permission, that identifiable California sea lions can be
removed if they are known to have a significant impact on listed
salmon.
The Humane Society has argued, in this litigation and in a prior
lawsuit challenging a 2008 Section 120 authorization, that NOAA
cannot call the sea lions’ impact “significant” while at the
same time allowing human caused mortality, such as fishing, that
has a greater impact on fish populations.
The 2008 decision was upheld in district court but was judged
illegal by the U.S. Court of Appeals for the Ninth Circuit. The
federal government has claimed it has repaired the legal flaws
sited by the appeals court, which said NOAA Fisheries had failed
to adequately explain how the sea lion predation was
significant.
The HSUS has said that the sea lion removals should stop while
the legal merits of the lawsuit are being argued and judged.
“In short, NMFS has failed to comply with the Ninth Circuit’s
remand and its obligations under law. There is nothing in the
record on NMFS’s 2012 authorization that might support a finding
that sea lions must be killed immediately, and certainly not
before this case can be resolved on the merits,” the April 6
memo says.
“Plaintiffs and their members regularly see, enjoy watching, and
recognize specific sea lions at the Dam, including some of the
“individually identifiable” animals targeted to be killed, and
thus will be irreparably harmed if these federally protected
animals are killed simply for eating fish before such time as
the Court can resolve Plaintiffs’ request for preliminary
injunction,” HSUS said.
So far this spring six “eligible” California sea lions have
hauled out on floating traps positioned just below Bonneville
and been removed. Four were trapped in previous weeks and
euthanized. Two trapped on Wednesday were being held as of late
Thursday “because there is a request from Shedd Aquarium” for
one animal, said Rick Hargrave of the Oregon Department of Fish
and Wildlife.
The animals become eligible for removal based on observed
predation salmon below the dam and continued presence at
Bonneville despite human efforts to chase the California sea
lions away.
Blood tests were taken for analysis “to see if they are free and
clean of any disease,” Hargrave said. If one or both receive a
clean bill of health, one of the big marine mammals would be
moved to the Chicago aquarium and the other would be euthanized.
So far this year Shedd is the only facility that has offered to
make a home for any of the sea lions.
Briefs filed April 20 by the three states, the federal
government and the Umatilla, Warm Springs and Yakama tribes
defend the decision, and ask that the preliminary injunction be
denied.
The parties to the lawsuit have proposed that the plaintiffs –
HSUS and the Wild Fish Conservancy – have until the end of the
day today to respond to the federal, state and tribal arguments.
U.S. District Court Judge Michael H. Simon on Tuesday scheduled
oral argument on HSUS's motion for a preliminary injunction to
take place at 9 a.m. on May 15 at the federal courthouse in
Portland, Courtroom 13B. A decision from the judge would then be
forthcoming.
The April 20 federal memorandum says NOAA Fisheries has followed
a legal path.
“After an extensive administrative process and through repeated
consultation with a statutorily created Pinniped-Fishery
Interaction Task Force (“Task Force”), NMFS has determined that
pinniped predation at Bonneville dam poses a serious risk to ESA-listed
salmonids; that is, sea lions at Bonneville dam are having a
‘significant negative impact’,” on the decline or recovery of
these listed salmonids, the federal brief said, noting Section
120 language.
“In this exact circumstance, Congress has spoken directly to
this issue and clearly instructed NMFS to favor ESA-listed
salmon and steelhead over a healthy population of sea lions.”
The federal filing says the HSUS arguments “are not reasoned and
do not present viable claims under the law.
“The crux of their claims is that other factors on the Columbia
River, like treaty-based harvest of salmon and mortality through
the Federal Columbia River Power System (“hydrosystem”), have a
far greater impact on listed salmon and steelhead than sea lion
predation. This, they contend, means that NMFS must address all
of these other threats to ESA-listed salmonids first, before
NMFS can ever authorize lethal take of predatory California Sea
lions.
“It is true that the hydrosystem and harvest, among other
threats, result in mortality to salmon and steelhead. What
Plaintiffs have consistently failed to address, however, is that
Congress did not condition the applicability of Section 120 to
only those instances where pinniped predation is the only source
of mortality affecting the decline or recovery of ESA-listed
stocks,” according to a joint filing from the three states.
“Plaintiffs also fail to acknowledge that the threats they
identify have been carefully managed and mitigated for decades,
while sea lion predation is a relatively new and unmanaged
threat that, according to Congress, must be actively pursued.”
The April 20 memo filed by the three tribes says plaintiffs’
assertion that sea lion predation is insignificant is “based on
a false construct.”
“They take a small sliver of sea lion predation in the Columbia
River, that which occurs only within the one-quarter mile
‘observation area’ of Bonneville Dam, and then shut their eyes
and cover their ears to sea lion predation in the rest of the
River, which is an order of magnitude larger,” the tribal brief
says.
“Plaintiffs then compare that sliver of predation against
harvest that occurs throughout the entire River and cry “Foul!
Look, the impacts of sea lion predation are not significant as
compared to fishery harvest.”
If a truer assessment was employed “the only conclusion that can
be made, once the totality of sea lion predation on listed fish
is measured, is that predation and the harms it causes greatly
exceeds that of status quo harvest.
“Plaintiffs also ignore the fact that fisheries are managed
under the jurisdiction of federal courts pursuant to court
orders, constitutionally protected treaty rights, and federal
mitigation obligations that weave together and form the backdrop
for tribal and non-tribal harvest. For these and the other
points and authorities discussed below, the Motion for
Preliminary Injunction should be denied,” the tribes say.
For more information see CBB, April 13, 2012, “Request For
Preliminary Injunction Filed As States Continue Trapping,
Euthanizing Sea Lions”
http://www.cbbulletin.com/419349.aspx
----------------------------
* Boat Crowding At Wind River Mouth Prompts Wider Fishing
Boundary; Spring Chinook Counts Rising
The Washington Department of Fish and Wildlife has expanded the
popular fishing area at the mouth of the Wind River in the
southwest part of the state by moving the outside boundary about
250 yards out into the Columbia River.
Working with a crew from the U.S. Geological Survey, state
personnel recently finished anchoring a white buoy line marking
the new boundary, just as the number of spring chinook salmon
passing Bonneville Dam was picking up nine miles downriver.
Upriver spring spawning runs in recent years have been later
timed than historically when the peak of the return-- the
highest daily counts at Bonneville and halfway mark in run
passage -- was in late April.
That zenith has over the past seven years or so slipped into
early May and would seem headed in that direction this year.
Counts of upriver fish – those headed for Wind River, which
flows out of Washington into the Bonneville pool, and elsewhere
in Idaho, Oregon and Washington upstream of Bonneville – had
lagged until recent days. The yearly total on April 13 was only
257, with a high daily count of 41 on the previous day. But
Bonneville passage has quickly climbed, with 4,376 passing on
Monday to bring the 2012 spring chinook total of 10,683 through
April 23. The count Tuesday was slightly higher, 4,873 adult
upriver spring chinook, to bring the season’s total to 15,556.
The preseason forecast is for a total return of 314,200 adult
upriver spring chinook to the mouth of the Columbia. The
Bonneville count does not include natural mortalities in the
lower river, or sport and commercial harvests. Bonneville Dam is
about 146 river miles upstream from the mouth of the Columbia.
State officials estimate that more than 15,000 upriver spring
chinook will have been caught by sport (11,129) and commercial
(4,696) fishers through this past weekend.
Lower Columbia mainstem sport salmon fishing was closed as of
the end of the day Sunday. No additional sport fisheries are
scheduled. Both spring seasons (through June 15) could be
revived if early May run-size updates indicate the 2012 upriver
run is big enough to support additional fisheries.
A 10-year state-tribal fishing agreement allocates harvests
based on the size of the return. Limits are imposed to protect
the listed wild fish.
John Weinheimer, a WDFW fish biologist, said the fishing area
was expanded to help relieve crowding at the mouth of the Wind
River, where up to 200 boats a day often compete for space
during the peak of the spring chinook season in late April and
May.
Sediment from the river has contributed to the problem by
crowding boats into areas still deep enough to fish, he said.
"The public has asked us for years to move the fishing boundary
out into the Columbia," Weinheimer said. "We're trying it this
year on an experimental basis to see if we can do that without a
significant impact on federally protected spring chinook bound
for the upper Columbia River."
The upriver spring chinook run passing by the mouth of the Wind
include wild fish headed to the Snake River and upper Columbia
that are protected under the federal Endangered Species Act. The
10-year federal-state-tribal agreement puts limits on impacts
associated with state and tribal harvests to assure certain
levels of escapement for natural production.
Weinheimer said the boundary line will be readjusted during the
course of the season if catch monitoring shows a high catch of
upper Columbia chinook.
The experiment would not be possible, he said, without financial
support from the Columbia River endorsement fee paid by anglers
who fish in the Columbia or its tributaries.
The Columbia River Salmon and Steelhead Endorsement Advisory
Board, which allocates that funding, approved spending $33,300
to hire temporary staff to monitor the catch and analyze the
data over a three-month period.
"This is exactly the type of action the sport fishing community
has requested be funded with the endorsement dollars,"
Weinheimer said.
Approximately 8,400 hatchery-reared adult spring salmon are
expected to return to the Wind River this year, up from 7,800
last year. The fishery for hatchery-reared salmon on the Wind
River will remain open through June 30, regardless of the
regulations in effect on the mainstem Columbia River.
The hatchery returns are the results of releases of fish
produced at nearby Carson National Fish Hatchery.
For a depiction of the new fishing boundary see
http://bit.ly/Ij5s59
------------------------------------
* Gorge Hatcheries Release 10 Million Plus Juvenile Salmon Past
Week; More Transferred For Recovery Programs
Since April 13, national fish hatcheries in the Columbia River
Gorge have released more than 10 million juvenile chinook salmon
into the lower Columbia River and its tributaries, continuing a
70-year program that supports tribal and sport fish harvests
worth millions of dollars.
The hatcheries, part of the Columbia River Gorge National Fish
Hatchery Complex, also support a program that affirms Native
American treaty-reserved fishing rights in the Columbia River
Basin and helps conserve wild salmon stocks, including several
salmon species protected under the Endangered Species Act.
On April 13, Spring Creek NFH and Little White Salmon NFH
released more than 8 million tule fall chinook salmon. On April
17, Carson NFH released nearly 1.2 million spring chinook into
the Wind River, and on April 20, Little White Salmon NFH and
Willard NFH released 1 million more.
“This [spring chinook] project helps maintain a fish population
that is incapable of becoming self-sustaining due to habitat
loss resulting from flooding, siltation, and fluctuating water
levels caused by the Bonneville Pool, and it also provides fish
to reaffirm tribal treaty-reserved fishing rights,” said Speros
Doulos, manager of the Columbia Gorge NFH Complex. “The reliable
return of adult spring chinook to the Columbia River and Drano
Lake is recognized as a major contributor to these popular
fisheries.”
Returning adult spring chinook support Columbia River sport,
commercial and tribal fisheries in the river and a highly
successful tribal fishery in Drano Lake, Doulos said.
In addition to the spring chinook releases, Spring Creek NFH in
Underwood, Wash., released 6.2 million subyearling tule fall
chinook salmon last week directly into the Columbia River. This
important stock of fish supports river and coastal fisheries of
Washington and British Columbia. The hatchery will release
another 4.5 million subyearling salmon in early May.
Chinook production at Columbia River Gorge NFHs is operated in
“segregated harvest programs” to avoid ecological risks with the
federally listed lower Columbia River Chinook salmon or
steelhead native to the Wind River.
The hatchery releases fulfill important legal responsibilities
the U.S. government has to Native American tribes under the U.S.
v. Oregon Management Agreement, as well as federal government
responsibilities to mitigate for lost salmon production and
spawning grounds due to the construction of hydropower projects
that are part of the Federal Columbia River Power System.
Hatchery releases over the past couple weeks are timed to
coincide with the annual outmigration of young salmon to the
ocean, a cycle that begins with the young fish making a
downstream journey -- swimming backwards -- to the Pacific
Ocean, where they will live for one to five years or more, then
return as adults to their natal (home) streams, where they spawn
and die.
In addition to its fish releases, the Carson NFH transferred
nearly 250,000 spring chinook pre-smolts (juvenile salmon nearly
ready to migrate to the ocean) to the Confederated Tribes of the
Umatilla Indian Reservation. The transfer continues a seven-year
partnership to re-establish a salmon run in the Walla Walla
River that was extirpated for 80 years until 2005, when the
Umatilla Tribe’s reintroduction program began.
Willard NFH in Cook, Washington, has already transferred 609,000
coho salmon in pre-smolt stages to seven different Yakama Indian
Nation acclimation sites, including the Leavenworth NFH Complex
in the Wenatchee and Methow river basins. These rivers are
tributaries of the Columbia River and the work undertaken by the
Service and the Yakama Nation are part of a larger Mid-Columbia
River Coho Reintroduction Program.
The rearing of locally adapted Mid-Columbia (Wenatchee Basin)
coho began 11 years ago when Willard NFH first received eggs
collected from adults returning to the Wenatchee River.
A smolt is a juvenile salmon whose physiology is adapting from
living in freshwater to saltwater ecosystems. Smoltification
occurs as young salmon migrate towards the ocean, and includes
changes in scales that become larger and silvery – traits more
advantageous in ocean environments. Remarkable modifications to
gills and lungs also occur, allowing the young fish to ‘breathe’
oxygen from salt water via a process called osmoregulation,
according to Don Campton, Pacific Region Fisheries Program
science adviser.
“Osmoregulation is comparable to humans acclimating at high
altitudes before climbing a mountain,” said Campton.
A salmon’s migration and ability to locate and return to the
stream where it was born is considered one of nature’s most
remarkable phenomena. Salmon and steelhead (rainbow trout that
migrate to the ocean) have acute senses of smell; they are
believed to be able to detect chemical signature concentrations
in water as small as one or two parts per million, equivalent to
being able to sniff out a single drop of water in 250 gallons.
Members of the salmon family, Salmonidae, have existed on Earth
for at least 50 million years.
For more information, visit:
http://www.fws.gov/gorgefish/littlewhite/index.cfm
http://www.fws.gov/gorgefish/springcreek/index.cfm
http://www.fws.gov/gorgefish/carson/index.cfm
http://www.fws.gov/gorgefish/willard/index.cfm
------------------------------------
* Umatilla Tribes This Spring, Summer To Measure Success Of
Lamprey Reintroduction, Dam Passage
Three projects are planned by the Confederated Tribes of the
Umatilla Indian Reservation this spring and summer to measure
the success of lamprey passage and reintroduction programs
started 12 years ago on the Umatilla Indian Reservation.
The tribes’ Fish and Wildlife Commission issued scientific take
permits to collect up to 500 adult Pacific lamprey as brood
stock, to collect and tag 80 adult lamprey to study passage, and
to sample 4,000 juvenile lamprey to monitor success of
restoration efforts.
CTUIR Fisheries Program crews will collect adults for broodstock
at Bonneville, The Dalles and John Day dams.
At Bonneville Dam, the Tribes will utilize lamprey traps
operated by the University of Idaho and the National Marine
Fisheries Service staff. The individual lampreys will be
collected from those agencies that already are sampling lamprey.
At The Dalles and John Day dams, the CTUIR will collect lampreys
from each fishway during maintenance/dewaterings conducted by
the U.S. Army Corps of Engineers, and utilize traps to catch
fish in picketed lead areas for adult lampreys.
Collected lampreys will be transported in an insulated
300-gallon slip tank to the South Fork Walla Walla Adult Holding
Facility and then transferred to Minthorn Springs on the
Umatilla River in the fall of this year to be held until
out-planting in the spring of 2013.
The lamprey will be released near Bear Creek at its confluence
with the Umatilla River, near Camp Creek confluence in Meacham
Creek, and near Little Iskuulktpe Creek confluence in Iskuulktpe
Creek.
A permit also was issued to collect and tag 80 adult Pacific
Lamprey for a radio telemetry study to determine the passage
success and to evaluate new lamprey passage structures at Three
Mile Dam (upstream from the confluence with the Columbia River)
and irrigation diversions on the Umatilla River.
The adult lamprey will be collected at Bonneville, The Dalles
and/or John Day dam fishways and from brood stock collected last
year.
In addition to determining the number of lamprey that
successfully pass over the structures, the study will document
the rate and route of migration at each structure using the
radio telemetry and half-duplex PIT monitoring.
This will aid the tribes’ efforts to re-establish Pacific
lamprey to self-sustaining, harvestable levels in the Umatilla
Basin through approved adult translocation, according to the
permit.
The collection, which is being coordinated with Corps staff,
will be conducted using traps in fishways or from a brood
holding facility. On the day of the capture, each lamprey will
be weighed, measured and equipped with a uniquely coded radio
transmitter, and then tracked upon release.
Another permit was issued to collect at least 4,000 juvenile
Pacific lampreys from index site plots (fines, silt, and sand
along and within margins of the streams, backwaters and eddies)
on the Umatilla River, Meacham Creek and Iskuulktpe Creek,
tributaries of the Umatilla River. The purpose of the collection
is to continue to monitor larval abundance in restoration areas
as outlined in the tribes’ restoration plan.
------------------------------------
* Gathering Celebrates Completion of Tribes’ In-Lieu Dallesport
Treaty Fishing Access Site; 31st Built By Corps
Leadership from four Columbia River treaty tribes, the U.S. Army
Corps of Engineers and the Bureau of Indian Affairs gathered on
the banks of the Columbia River Wednesday morning to celebrate
the completion of the Dallesport Treaty Fishing Access Site.
The 31st in-lieu and treaty fishing access site constructed by
the Corps under “Public Law 100-581, Title IV: Columbia River
Treaty Fishing Access Sites represents the end of the
construction phase of the Columbia River Treaty Fishing Access
Site program. The sites constructed under the program are
mitigation for usual and accustomed fishing areas lost by the
tribes when the lower Columbia River Dams were constructed,
beginning with Bonneville Dam in 1937.
“The conclusion of these construction projects demonstrates the
power of partnership and what we can accomplish when we work
together,” said Gerald Lewis, chairman of the Columbia River
Inter-Tribal Fish Commission. “There is still work that needs to
be done to address what was lost at these sites. I believe we
will accomplish what we need to by working together.”
The development of the tribal in-lieu and treaty fishing access
sites began in 1988 when Congress enacted Public Law 100-581.
The sites are designed with facilities such as: boat ramps and
docks, fish-cleaning tables, net racks, drying sheds, restrooms,
mechanical buildings, and shelters. In total, the in-lieu and
treaty fishing access sites occupy approximately 700 acres along
the Columbia River from Bonneville Dam to McNary Dam.
Construction on the first treaty fishing access site began in
1995.
“Completing the treaty fishing access sites is a great milestone
for the Corps, but there’s still more to do,” said George
Miller, the Corps’ TFAS project manager. “We hope this
partnership remains strong as we work together to solve some of
the other substantive challenges facing the region. Challenges
like adjusting the John Day mitigation fish production program
and outstanding housing issues will need a strong partnership if
we are to achieve success.”
Purchased in 2009, the 64-acre Dallesport site has eight
campsites for tribal member use during the tribal fishing
seasons, a 128-foot boat launch, 120-foot dock, restroom and
shower facilities, net repair racks and a fish cleaning table.
Costing $4.8 million, an overwhelming majority of personnel
working on the construction of the project were tribal.
In addition to the developments for tribal fishers, the site
involved extensive environmental remediation work. Sandy dunes
were stabilized with various plants and willow plantings and an
estimated six thousand tons of tar-tainted sand was removed from
the soil.
A task force comprised of tribal, CRITFC, Bureau of Indian
Affairs and Corps of Engineers representatives worked on a
government-to-government basis to implement the project. The
group established processes and considerations that respected
the tribes’ concerns such as potential impacts to cultural
resources, and the needs of the tribal fishers and tribal
communities. Each tribe’s Tribal Employment Rights Office
assisted the task force in developing employment opportunities
for tribal members during site construction.
------------------------------
* Culvert Work Set For This Year To Aid Wild Salmon, Steelhead
In Portland’s Johnson Creek
The U.S. Army Corps of Engineers and Portland Bureau of
Environmental Services are co-hosts for an open house on
Thursday, May 3 to discuss construction activities this summer
to restore a portion of Crystal Springs Creek in southeast
Portland.
The project is part of the larger Crystal Springs Creek
restoration effort to improve habitat and passage for coho and
chinook salmon and steelhead trout.
Crystal Springs Creek is a tributary of lower Johnson Creek in
southeast Portland. Johnson Creek in turn flows into the
Willamette River, a tributary that feeds into the Columbia River
at Portland. Crystal Springs Creek originates from a spring near
Reed College and the Eastmoreland Golf Course, an area that was
once primarily marshy wetlands.
Before development, the wetlands retained excess water from
flood events and provided important rearing and refuge habitat
for salmon, and foraging and nesting sites for beavers, birds,
turtles, frogs, and other wildlife.
Crystal Springs is spring fed, which keeps water temperatures
cool and stream flow uniform throughout the year. That adds cool
water to Johnson Creek in the summer when stream flow can be low
and warm. Fish and amphibians thrive in cool water.
Crystal Springs is home to wild coho and chinook salmon, and
steelhead trout. All three species are listed as threatened
under the federal Endangered Species Act and Crystal Springs is
designated as critical habitat.
The City of Portland’s Environmental Services is working to
enhance conditions in Crystal Springs Creek to benefit native
fish.
There are nine culverts on Crystal Springs Creek between SE 28th
Ave. and the creek's confluence with Johnson Creek. Many of the
culverts inhibit fish from swimming upstream and downstream to
reach spawning and rearing habitat. Culvert replacement or
removal is a key element of recovery of endangered juvenile
salmon and trout species. Replacing Crystal Springs Creek
culverts with fish-friendly culverts will open up nearly three
miles of prime habitat for threatened native fish species.
The city’s “Grey to Green” initiative allocated $2 million
dollars to replace eight culverts in Crystal Springs Creek over
a five-year span. Environmental Services is collaborating and
leveraging funds with other bureaus, agencies, and partners to
replace all fish passage barriers in Crystal Springs by the end
of 2014.
Construction in 2012 is Phase I of this project and is part of a
larger Crystal Springs Creek restoration effort. Beginning in
July, the Corps will replace two culverts at SE Umatilla and SE
Tenino streets, restore a stream corridor, remove a driveway
culvert at SE 21st Avenue, and install green streets for
stormwater management and treatment.
Phase II construction, scheduled for 2013, includes a culvert
replacement at SE Tacoma Street, site restorations and
stormwater management at locations on S.E. Tacoma Street and SE
21st Avenue, and restoration of a stream corridor at
Westmoreland Park.
The Crystal Springs and Westmoreland Park Ecosystem Restoration
project is a partnership between the Corps and the city of
Portland. It is authorized under Section 206 of the Water
Resources Development Act of 2008, which allows the Corps to
partner with non-federal agencies to restore degraded aquatic
ecosystems. Project costs are shared between the Corps (65
percent) and the city (35 percent).
Doors open at the Sellwood-Moreland Improvement League (SMILE)
station at 8210 SE 13th Ave., Portland, Ore., at 5:30 p.m.; the
Corps will present a brief description of the project and
outline construction activities at 6 p.m. Representatives from
the Corps, Environmental Services and Hamilton Construction will
be available to answer questions until 7:30 p.m.
For more information about the meeting call or email Michelle
Helms at 503-808-4517 or
Michelle.R.Helms@usace.army.mil, or Ronda Fast at
503-823-4921 or
Ronda.Fast@portlandoregon.gov.
--------------------------------
* Colville Tribes’ Traditional Fishing Gear Efforts Anticipate
Rising Salmon Numbers From New Hatchery
Inside the National Guard Armory at Okanogan, Wash., Leroy and
Mylan Williams teach a small crowd of onlookers the nearly lost
art of building fish nets by hand. The father and son are part
of the Confederated Tribes of the Colville Indian Reservation
and are teaching other tribal members how to build and use
traditional fishing gear.
"We're doing this is in anticipation of the new hatchery that's
going in because it will mean a larger number of salmon coming
up stream," says 33-year-old Mylan Williams.
After nearly a decade of design and construction, the new Chief
Joseph Hatchery, located near Bridgeport, Wash. is nearing
completion. In a joint effort funded by BPA, Grant County Public
Utility District and the Colville Tribes, the project is
expected to be completed in February 2013, said BPA in a recent
press release.
As the new hatchery moves closer to reality, tribal members
anticipate the significant numbers of salmon that biologists
predict it will produce some day.
In preparing for the arrival of the fish, the Williams are
travelling throughout the Colville Reservation teaching their
tribal brethren the aboriginal way of building nets. The father
and son are some of the last Colville tribal members who possess
the ancient skills.
The elder Williams says declining salmon populations in the
upper Columbia over the last century has meant fewer tribal
members learned the old fishing methods. "We're at the tail end
of the fish run way up here; a lot of people thought it had died
out so they didn't bother learning net building. We'd like to
revive that."
Over the last 70 years, hydropower development caused losses to
tribal fisheries in the Upper Columbia region. As a result, a
disconnection emerged between Colville tribal members and their
fishing heritage. Tribal members want to rebuild Upper Columbia
wild salmon runs while harvesting their share of the hatchery
produced fish. Dipnets, seines and hoopnets offer an opportunity
to take a portion of the hatchery-produced fish while supporting
the rebuild of naturally spawning populations.
Through the Columbia Basin Fish Accords, BPA, said the press
release, supports the net building educational classes as part
of the Live Capture Gear Deployment project.
Last summer the Williams caught 50 summer steelhead using their
handmade nets and were successful at harvesting hatchery fish
while releasing the wild ones. As part of the program, BPA is
also funding construction of a small number of fishing scaffolds
along the upper river.
BPA project manager Dave Roberts says the agency is supporting
the Colville peoples' rediscovery of the ways their ancestors
fished. "Funding tribal members to teach the construction and
use of traditional fishing gears, like dipnets and hoopnets, is
an important contribution to reconnecting people with their
aboriginal fishing heritage," says Roberts.
As the younger Williams describes it, long ago his ancestors
made net frames out of large willow branches and used hemp and
braided willow for net mesh and rope. These days, in their
net-building classes, the father and son teach others to use
more modern materials, such as spring steel for frames and nylon
gill net for mesh. But the basic construction and use haven't
changed for centuries.
The elder Williams, who was born in 1946, fondly remembers his
uncles fishing traditionally with huge hoop nets and 30 to
40-foot-long dip nets the men had made.
He says his family taught him the art, he taught his son and now
the two of them want to pass it on.
"I was told by my uncles that they can't take all of this
information with them and that it's passed down from generation
to generation, so I'd like to keep that going," says Williams.
When completed next year, the Chief Joseph Hatchery will
ultimately release nearly three-million spring and summer
chinook in the upper Columbia and Okanogan rivers. Biologists
estimate tens of thousands of those fish will be available for
Colville tribal members to harvest.
The elder Williams says he, his son and others will be eagerly
waiting for the fish with their new nets. "There's going to be a
large influx of salmon at that time. And we want as many of our
membership to fish like this, the old traditional way," he says.
-------------------------------
* NW Utilities Forecast Report Says ‘Gaps To Fill’ In Next
Decade To Meet Winter, Summer ‘Peak’ Loads
The Pacific Northwest Utilities Conference Committee’s
“Northwest Regional Forecast” released this week, tells the
story of how the region’s electric utilities plan to keep the
lights on over the coming decade.
The 2012 Forecast is a tale of steadily growing demand for
electricity served by hydropower, energy efficiency, natural
gas-fired generation and wind power.
Right now, the region uses roughly 22,000 megawatts of firm
energy to meet annual demand and just over 38,000 megawatts to
meet peak demand. And projections are for a steady but moderate
rise over the next 10 years after taking into account what
utilities expect to save through energy efficiency programs.
The peak demand, which refers to the highest spikes in usage, is
a focus of this year’s needs analysis. PNUCC sees that peak
demand continuing to occur in the winter, when lighting and
heating loads are greatest. Yet, summer demand is escalating as
well and utilities are watching it closely.
Peak demand is an important yardstick for measuring what will be
required to keep the lights on in the future. While the region’s
annual energy demand is being met, there are gaps to fill in the
next decade to meet winter and summer peak loads, says PNUCC.
The forecast indicates that in the near term the region needs
another 2,000 to 3,000 megawatts of firm resources capable of
meeting the peaks. That means generators, like natural gas
turbines, that utilities can call on at a moment’s notice.
Hydropower still dominates the region’s resource mix, providing
much of the firm power needed as well as the flexibility to
accommodate variable resources like wind.
Hydro, says the report, is critical to keeping the system stable
and reliable. Utilities are relying heavily on demand-side
management and offering a variety of programs to encourage
efficiency.
Utilities also have additional natural gas and wind generation
under construction or on the drawing board. Looking ahead,
utilities have more than 6,500 MW of demand-side savings and
generation planned to meet projected needs.
The full report is available at
www.pnucc.org/system-planning/northwest-regional-forecast
-----------------------------
* Researchers Unveil New Seafloor Mapping Of Oregon’s Nearshore;
Data For Fishing Industry, Marine Planners
After more than two years of intense field work and digital
cartography, researchers have unveiled new maps of the seafloor
off Oregon that cover more than half of the state’s territorial
waters – a collaborative project that will provide new data for
scientists, marine spatial planners, and the fishing industry.
The most immediate benefit will be improved tsunami inundation
modeling for the Oregon coast, according to Chris Goldfinger,
director of the Active Tectonics and Seafloor Mapping Laboratory
at Oregon State University, who led much of the field work.
“Understanding the nature of Oregon’s Territorial Sea is
critical to sustaining sport and commercial fisheries, coastal
tourism, the future of wave energy, and a range of other
ocean-derived ecosystem services valued by Oregonians,”
Goldfinger said. “The most immediate focus, though, is the
threat posed by a major tsunami.
“Knowing what lies beneath the surface of coastal waters will
allow much more accurate predictions of how a tsunami will
propagate as it comes ashore,” he added. “We’ve also found and
mapped a number of unknown reefs and other new features we’re
just starting to investigate, now that the processing work is
done.”
The mapping project was a collaborative effort of the National
Oceanic and Atmospheric Administration, OSU’s College of Earth,
Ocean, and Atmospheric Sciences, David Evans and Associations,
and Fugro. It was funded by NOAA and the Oregon Department of
State Lands.
Goldfinger said the applications for the data are numerous.
Scientists will be better able to match near-shore biological
studies with undersea terrain; planners will be able to make
better decisions on siting marine reserves and wave energy test
beds; and commercial and recreational fishermen will be able to
locate reefs, rockpiles and sandy-bottomed areas with greater
efficiency.
“Prior to this, most people used nautical charts,” Goldfinger
said. “They would provide the depth of the water, the distance
off shore, and in some cases, a bit about the ocean floor –
whether it might be mud, rock or sand. Through this project,
we’ve been able to map more than half of Oregon’s state waters
in a much more comprehensive way.”
Oregon’s Territorial Sea extends three nautical miles from the
coast and comprises about 950 square nautical miles. The
researchers have created numerous different habitat maps
covering 55 percent of those waters, which show distinction
between fine, medium and coarse sands; display rocky outcrops;
and have contour lines, not unlike a terrestrial topographic
map.
Some of the mapping was done aboard the Pacific Storm, an OSU
ship operated by the university’s Marine Mammal Institute. The
project also utilized commercial fishing boats during their
off-season.
More information about the project, as well as the maps and
data, are available at:
http://activetectonics.coas.oregonstate.edu/state_waters.htm
-------------------------
* Research Shows Aquaculture Salmon Feed Includes Wild, ‘High
Trophic Level’ Fish
Researchers from the University of Oviedo have for the first
time analyzed a DNA fragment from commercial feed for aquarium
cichlids, aquaculture salmon and marine fish in aquariums.
The results show that in order to manufacture this feed, eight
species of high trophic level fish have been used, some of them
coming directly from extractive fisheries.
Aquaculture initially came as an ecological initiative to reduce
pressure from fishing and to cover human food needs. However, a
problem has emerged: consumers prefer carnivore species, like
salmon and cod that require tons of high quality protein for
their quick, optimum development.
"If these proteins are obtained from extractive fisheries,
aquaculture stops being an alternative to over-fishing and
starts contributing to it, turning it into a risk for natural
marine ecosystems" Alba Ardura, lead author of the study
published in 'Fisheries Research' and researcher in the
department of Functional Biology at the University of Oviedo
told SINC.
The research team analysed a DNA fragment from commercial feed
made for aquarium cichlids, aquaculture of salmon and marine
fish in aquariums. After removing oil and fat from the feed, DNA
sequences were obtained and compared with public databases to
identify the species found.
From fish feed samples, supplied by manufacturers and bought in
animal shops, researchers identified eight species of wild
marine fish that were from high trophic levels in the food
chain.
Industrial waste from processing and commercialization for human
consumption of Peruvian anchoveta, European sprat, Pacific cod,
whiting, Atlantic herring, Pacific sandlance jack mackerel, and
blue mackerel, allow fish meal for aquaculture fish to be made.
Nonetheless, according to the researcher "some of the species
found in this feed are commercialized fresh without being
processed and they suspect that they came to the feed directly
from extractive fisheries." This is the case with herring and
Pacific sandlance.
The research suggests that aquaculture is partly maintained by
fisheries, and aquaculture fishes are fed by wild fish sold
"whole" (without being processed) and fresh directly from
fishing vessels.
"If species from extractive fishing are used to feed farm fish,
aquaculture does not help minimiz over-fishing" warns the expert
who suggests "urgently" revising the composition of aquaculture
feed to replace them with other proteins. The aim is to reduce
the exploitation of natural fish populations.
Ardura proposes increasing efforts to gain high quality proteins
from other sources, such as vegetable proteins, which supplement
farmed fish's nutritional needs. This way they will be able to
"minimize the impact of aquaculture on wild populations."
*******************************
For more information about the CBB contact:
-- BILL CRAMPTON, Editor/Writer,
bcrampton@cbbulletin.com, phone:
541-312-8860 or
-- BARRY ESPENSON, Senior Writer,
bespenson@msn.com, phone:
360-696-4005; fax: 360-694-1530
The stories in this e-mail newsletter are posted on the Columbia
Basin Bulletin website at
www.cbbulletin.com. If you would like access to the CBB
archives, please consider becoming a Member of the CBB website
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maintenance of the 10-year (1998-2008) news database and the
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====================================================
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