The Competing Trade-Offs Of Mixed-Stock Fisheries: Can Fisheries Benefit From Such Biodiversity Without Harming Weak Populations?

A new study by researchers from Simon Fraser University and Canada’s Department of Fisheries and Oceans reveals the trade-offs of fish biodiversity--its costs and benefits to mixed-stock fisheries--and points to a potential way to harness the benefits while avoiding costs to fishery performance.

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Restoring Yakima River Basin Habitat: Helicopters Drop 6,000 Logs In 24 Miles Of Streams To Provide Cover For Salmon/Steelhead

After one year of planning, working with state, federal and private landowners, and three weeks of heavy lifting – with helicopters – the Yakama Nation completed a project that dropped logs into seven Yakima River tributaries to create natural habitat and cover for salmon and steelhead smolts.

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Taking Care Of Hundreds Of Fish Screens That Save Juvenile Salmon From Irrigation Ditches Now Tougher With Flatlined BPA Fish/Wildlife Spending

If the Bonneville Power Administration’s fish and wildlife budget is to remain flat – no increases through 2028 – that could impact an important maintenance program that keeps juvenile salmon and steelhead from being stranded in irrigation ditches, according to Idaho and Washington fish screen managers.

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Mortality Event, Warm Weather, Water Conditions Prompt Early Release Of One Million Sockeye Smolts Directly Into Upper Salmon River

Idaho Fish and Game released more than 1 million endangered Snake River sockeye salmon smolts from its Sawtooth Hatchery directly into the Upper Salmon River April 30 rather than transporting and then releasing the smolts into Redfish Lake Creek, which is normally the last stop for the smolts as they begin their downstream migration to the ocean.

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Expect The Wildfires To Get Worse: Urban Areas Will See Degrading Air Quality

From the Pacific Northwest to the Rocky Mountains, summers in the West are marked by wildfires and smoke. New research from the University of Utah ties the worsening trend of extreme poor air quality events in Western regions to wildfire activity, with growing trends of smoke impacting air quality clear into September.

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Study Looks At How Combination Of Extreme Events Led To Labor Day Fires Burning 11 percent Of Oregon Cascades

An unprecedented combination of strong easterly winds and low humidity coupled with prolonged drought conditions drove the spread of catastrophic wildfires in the Oregon Cascades last September, a new study has found.

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That Age-Old Question, Do Fish Feel Pain? Researchers Conclude You Can’t Say They Can’t

An international, multidisciplinary team that includes faculty members from The University of Texas at Arlington has published a paper in the journal Philosophical Psychology that wades into the debate about whether fish feel pain.

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Groups File Court Petition To Halt Clearcutting In Oregon’s Burned Santiam River Watershed; Home To ESA-Listed Spring Chinook, Steelhead

Seven conservation groups filed April 14 in Multnomah County Circuit Court a petition seeking to stop logging by Oregon Department of Forestry contractors of trees burned in wildfires last summer in the Santiam River watershed in Oregon. The logging is in process.

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Biologists Tracking Steelhead Repopulation Of White Salmon River Eight Years After Condit Dam Removal

Eight years of spawning surveys in White Salmon River tributaries is showing the progression of how naturally-returning steelhead are repopulating the river after removal of Condit Dam in 2011.

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Research Documents How Pacific Coast Ancestral Subsistence Strategies Employed Dietary Solutions To Avoid ‘Salmon Starvation’ (Too Much Lean Protein)

Humans cannot live on protein alone – even for the ancient indigenous people of the Pacific Northwest whose diet was once thought to be almost all salmon.

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Next Steps For Columbia Basin Collaborative To Focus On Refining Process, Participation, Funding

What are the next steps for the proposed regional forum, the Columbia Basin Collaborative, which held an organizational workshop in February? Organizers of this new collaborative effort aimed at recovering salmonid species in the Columbia River Basin this week issued a summary of the workshop results and what might come next.

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Columbia River Smelt Run Smokin’ Hot: 8 Million Pounds Now Expected, Double Preseason Forecast

An important forage fish that spawns in late summer and early spring in the lower Columbia River is returning this year in higher numbers than was originally forecasted.

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Why Are Alaska’s Returning Chinook Salmon Getting Smaller, Younger? Study Suggest Marine Predators Target Bigger Fish

Older Chinook salmon may die in the ocean more often than previously thought, according to a life cycle simulation created by Alaska researchers.

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Study Shows Avian Predation On Salmon Smolts In Columbia River Plume Higher With Turbidity, Smaller Plume, Fewer Forage Fish

Juvenile salmon run the gamut of predators – birds, other fish and pinnipeds – as they migrate from their rearing grounds far upstream in the Columbia River basin all the way to the ocean, but they also are confronted with predators as they enter the ocean.

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AN EXCHANGE: Are Lower Snake Dams Or Ocean Conditions Responsible For Continued Low Smolt-To-Adult Returns?

Last month 68 leading salmon and fisheries scientists sent a letter to Northwest governors, the Northwest congressional delegation, and policymakers that summarizes actions they say are necessary to protect and restore abundant salmon and steelhead runs to the Columbia/Snake river basin. Subject: “Scientists’ letter on the need for lower Snake River dam removal to protect salmon and steelhead from extinction and restore abundant, fishable populations.”

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Labor Day Fires: Blazes’ Aftermath Has Researchers Looking At Fire As Driver Of Habitat Quality, Link To Fish From Headwaters To Downstream

Oregon wildfires threatened multiple cities in summer 2020, destroyed more than 4,000 homes, filled the air with smoke for days and burned more than 1 million acres, the second highest one-year total in state history.

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Trump Administration’s ‘Open Science Rule’ Revoked; New Order Aimed At Strengthening Scientific Integrity At Interior

The Interior Department last week took steps “to recommit to scientific integrity and empower the agency’s scientific and technical experts to use the best available science.”

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Fisheries/Hydro Managers Agree On Load Following Plan At Dworshak; If Implemented Again Parties To Be Consulted

River operators have ceased their “day load shaping operations” at Idaho’s Dworshak Dam that, when implemented, nearly tripled flows downstream of the dam in the Clearwater River.

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Parties Discuss Next Steps For Columbia Basin Collaborative; Workshop Participants Stress Urgency, Simpson Plan

In its first public workshop the Columbia Basin Collaborative this week outlined how the new group would be organized and how it would bring parties together to rebuild the region’s threatened and endangered salmon and steelhead stocks and advance the goals of the Columbia Basin Partnership Task Force.

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68 Fisheries Scientists Sign Letter Detailing Why They Think Lower Snake Dam Removal Only Hope For Snake River Salmon, Steelhead Recovery

A letter signed by 68 salmon and fisheries scientists summarizes actions they say are necessary to protect and restore abundant salmon and steelhead runs to the Columbia/Snake river basin. The letter is “intended to help inform regional and national leaders on the policies and actions necessary to restore to a healthy abundance salmon currently listed under the federal Endangered Species Act.”

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Fisheries Managers Object To Fluctuating ‘Load Following’ Releases Out Of Dworshak; Says Harms Fish, Fishing, River

Fisheries managers are not happy about federal hydro managers’ decision to engage in “day load shaping operations” at Idaho’s Dworshak Dam last week, a practice that has not been implemented since 1986. The biologists say such operations negatively impact juvenile fall chinook, fisheries and river ecology.

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Study Shows Eye Lenses Will Reveal An Endangered Salmon’s Life History, Habitats Used, What It Ate

Scientists from the University of California, Davis, demonstrate that they can use stable isotopic analysis of the eye lenses of freshwater fish -- including threatened and endangered salmon -- to reveal a fish's life history and what it ate along the way.

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Research Shows High Levels Of Cancer In California Sea Lions; Exposure To Toxins

Scientists at The Marine Mammal Center - the world's largest marine mammal hospital - have found that viral-caused cancer in adult California sea lions is significantly increased by their exposure to toxins in the environment. The study is the result of over 20 years of research and examination of nearly 400 California sea lion patients by The Marine Mammal Center.

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GUEST COLUMN: Reflections, Perspectives On Idaho Salmon Workgroup Recommendations

The robust fishery science literature— beginning with the “Plan for Analyzing and Testing Hypothesis” (Marmorek et al.1998) in the 1990s and continuing to the 2020 report “Achieving Productivity to Recover and Restore Columbia River Stream-type Chinook Salmon (Petrosky et al. 2020)—documents the necessity to achieve an average 4% smolt-to-adult return (SAR) survival in order to recover Snake River (Idaho) salmon and steelhead.

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Washington State Salmon Recovery Report: Most Populations Not Making Progress, Some On Path To Extinction

A new report from Washington State’s Governor’s Salmon Recovery Office shows that most salmon populations in the state still are not making progress and some are teetering on the brink of extinction.

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