Entries by CBB

Comments On Corps’ Draft EIS for 13 Willamette Valley Dams Question Whether Plan Avoids Jeopardy For ESA-Listed Salmonids

A massive 2,000 page draft environmental impact statement on how Willamette River Valley dams impact threatened salmon, steelhead and bull trout is flawed and does not address one of its own primary goals, which is meeting obligations under the Endangered Species Act to avoid jeopardizing the existence of listed species, according to several groups and agencies that submitted comments to the U.S. Army Corps of Engineers in late February.

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Early Estimate Indicates Upper Snake River Water To Aid Migrating Juvenile Salmon Will Likely Be Short Of NOAA BiOp Flow Requirements

An early estimate of the volume of water available from the upper Snake River basin this year to provide flow augmentation to aid juvenile salmon and steelhead passage in the lower Snake and lower Columbia rivers will for the second year running fall under the 427,000 acre feet required by NOAA Fisheries, according to Joel Fenolio of the Bureau of Reclamation.

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Why Are Southern Resident Killer Whales Not Recovering? Ground-Breaking Study Shows Inbreeding Major Contributor To Decline Of Endangered Orcas

The small size and isolation of the endangered population of Southern Resident killer whales in the Pacific Northwest have led to high levels of inbreeding. This inbreeding has contributed to their decline, which has continued as surrounding killer whale populations expand, according to research published in Nature Ecology and Evolution.

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Northwest Washington Study: With Less Salmon To Eat, Bald Eagles Showing Up On Dairy Farms To Get Food From Farm By-Products

Bald Eagles and dairy farmers exist in a mutually beneficial relationship in parts of northwestern Washington State. According to a new study, this “win-win” relationship has been a more recent development, driven by the impact of climate change on eagles’ traditional winter diet of salmon carcasses, as well as by increased eagle abundance following decades of conservation efforts.

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California Fishery Managers Releasing Millions Of Hatchery Chinook Salmon To Take Advantage Of Storm-Induced High Flows; Higher Survival Expected

Anticipating good conditions for the survival of hatchery-produced Chinook salmon throughout the Sacramento River and tributaries, the California Department of Fish and Wildlife will release both spring and fall-run Chinook during the historic rain and snowfall the state is experiencing. Several releases have already happened, and others are planned over the next few weeks to utilize good in-river habitat conditions for these young salmon.

New UN IPCC Report Details How Limiting Global Warming To 1.5 Degrees C Will Require Deep Decarbonization – Soon

Limiting global warming to 1.5 degrees Celsius above pre-industrial levels will require severely cutting greenhouse gas emissions in half by 2030. Doing so calls for the immediate, large-scale adoption of renewable energy like solar and wind, electrified transportation, energy-efficient systems, alternative fuels, and carbon capture and storage technologies across all sectors globally.

With End Of La Nina, Ocean Conditions Likely Trending Downward For Salmon, Steelhead Survival, Mass Of Warm Water In North Pacific

Good years in the Pacific Ocean for salmon and steelhead, as the last couple of years have been, are an anomaly. Instead, ocean conditions are generally trending downward, according to a NOAA Fisheries scientist briefing the Northwest Power and Conservation Council.

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Low Forecasted Returns For California’s Endangered Chinook Prompts Spring Ocean Fishing Shut Down Off Oregon, California Coasts

With severely low forecasted returns of California Chinook salmon (Sacramento and Klamath River), the National Marine Fisheries Service has cancelled the spring 2023 commercial ocean troll salmon fishery (Cape Falcon to the California border) and the spring recreational ocean salmon fishery (March 15-May 15 from Cape Falcon to Humbug Mountain). This decision was made in consultation with the Pacific Fishery Management Council, and the states of Oregon and California.

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UW/NOAA Study Looks At Why Northern Resident Orcas Doing Better Than Southern Residents; They Hunt Differently

In the Pacific Northwest and British Columbia, scientists have been sounding the alarm about the plight of southern resident orcas. Annual counts show that population numbers, already precarious, have fallen back to mid-1970s levels.

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California Current Ecosystem Status Report Shows Disconnect Between Oceanographic Predictions, Observed Conditions

Ecological relationships across the Pacific Coast that once guided annual expectations such as salmon returns are evolving as climate change disrupts long-standing connections. NOAA Fisheries researchers report these findings in their latest Ecosystem Status Report for the California Current Ecosystem.

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Judge Rules NOAA Fisheries Failed To Protect Humpback Whales When Issued Take Permit For Sablefish Pot Fishery

A federal court this week ruled in favor of the Center for Biological Diversity in a lawsuit arguing that the National Marine Fisheries Service failed to protect endangered Pacific humpback whales from deadly entanglements in sablefish pot gear off California, Oregon and Washington.

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All This Wet Weather Yet Columbia River Basin Water Supply Forecast For Salmon Migrating Season Still Below Normal

For the third straight month of forecasts, water supplies in the Columbia River basin are predicted to be far below normal. That could indicate low streamflows this summer, impacting juvenile and adult salmon and steelhead passage.

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California Salmon: Shrinking Age Distribution Of Returning Spawners Increases Impacts Of A Bad Year, Warming Climate; Older Fish Rarely Observed

By returning to spawn in the Sacramento River at different ages, Chinook salmon lessen the potential impact of a bad year and increase the stability of their population in the face of climate variability, according to a new study by scientists at UC Santa Cruz and NOAA Fisheries.

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USFWS Releases Draft Recovery For Oregon Spotted Frog, Most Aquatic Frog In PNW; Over 76 Percent Of Range Gone

The U.S. Fish and Wildlife Service has announced the availability of a draft recovery plan for the Oregon spotted frog, which has lost most of its habitat from southern British Columbia, through the Cascades, and into southern Oregon.

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Oregon State Scientists Analyze 41 Climate Change ‘Amplifying Feedback Loops’; Threats Looming From Tipping Points

An international collaboration led by Oregon State University scientists has identified 27 global warming accelerators known as amplifying feedback loops, including some that the researchers say may not be fully accounted for in climate models.

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Science Panel Gives Thumbs-Up On Fish Response Models Corps Used To Develop Draft Willamette River Basin EIS

A panel of scientists put their stamp of approval on four fish response models the U.S. Army Corps of Engineers used when developing a draft environmental impact statement to assess the effects of operating its Willamette Valley System of 13 dams on threatened Chinook salmon and winter steelhead.

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Low Water, Low Flows Force Columbia River Hydro Managers To Drop Bonneville Dam Tailwater Levels Aimed At Protecting ESA-Listed Chum Salmon

There is so little water available from the upper reaches of the Columbia and Snake rivers that dam operators are dropping the tailwater elevation at Bonneville Dam to 10.2 feet above sea level. That’s a drop of more than 1.5 feet from the minimum tailwater elevation of 11.8 feet required to protect chum salmon nests, or redds, downstream of the dam.

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States Approve Recreational Fishing Dates For Expected Decent Spring Chinook Return; Concerns Expressed About Impacts Of Too Much Early Fishing

With a higher than average number of spring Chinook salmon forecasted to return to the Columbia River and pass Bonneville Dam this year, Oregon and Washington approved start and ending dates for recreational fishing in the river.

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