Inbreeding hinders population recovery among endangered Southern Resident killer whales

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While a scarcity of Chinook salmon and other environmental factors may be pushing the Southern Resident killer whales toward extinction, a new genetics study has revealed that inbreeding has been exerting a powerful, overriding influence upon the small, genetically isolated population. The weakened genetic condition of the Southern Resident orcas, which frequent Puget Sound, could help explain why their numbers have generally declined over the past 25 years, while other orca populations in Alaska and British Columbia have been growing at remarkable rates. Experts have long suspected that inbreeding could […]

Findings and reports: February 2023

Image of San Juan Islands from the Salish Sea Model
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Salish Sea Model provides insights on circulation and residence times The amount of time water circulates and “resides” in Puget Sound is of intense interest to regulators and emergency response officials who want to understand how quickly wastewater is flushed out of Puget Sound and into the ocean. A paper in the journal Estuarine, Coastal and Shelf Science reports that contrary to expectation, flushing of deeper waters may take longer in wintertime in large fjord-like basins such as Hood Canal. A new, higher resolution version of the Salish Sea Model […]

PUGET SOS brings new funding and a federal makeover

The U.S. Capitol building
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Recently passed federal legislation has increased funding to protect Puget Sound while also changing the way ecosystem recovery efforts are organized. The legislation includes key provisions of the PUGET SOS Act and establishes a national office for Puget Sound recovery based at the Environmental Protection Agency in Seattle. The end of 2022 marked a seismic shift for Puget Sound recovery efforts. Over the course of less than a week in late December, two landmark pieces of legislation were signed and enacted by President Biden. One of them, known informally as […]

Symposium grapples with long-lasting PCBs

An aerial image of the lower Duwamish River as it flows into Puget Sound. The river is heavily contaminated with PCBs and other toxic chemicals. Photo courtesy of NOAA.
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Researchers at the Puget Sound Institute hosted a two-day symposium last month to share information about the science and management of PCBs in the environment. The online workshops, held January 24th and 25th, were organized by PSI researchers Andy James, Joel Baker, and Marielle Larson, in coordination with colleagues Will Hobbs (Washington State Department of Ecology) and Katrina Radach (PSP), along with Greg Allen and Doug Austin (US EPA Chesapeake Bay). Despite their ban in the U.S. in 1979, PCBs (polychlorinated biphenyls) remain one of the most pressing and stubborn […]

A new oral history project looks at the unique development of natural resource policy in Washington state 

From left right: Nisqually Tribe Chairman Willy Frank III, Jim Wilcox of Wilcox Family Farms, and Nisqually Tribe Natural Resource Director David Troutt are shown in a still image from the TVW/Collaborative Leadership Project.
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Our affiliates at the Center for Urban Waters and external partners will examine 50 years of collaborative leadership in the state leading to groundbreaking outcomes on forest, fish, wildlife, land, and water management. Funding secured to date includes generous gifts and pledges from Anchor QEA, the Jamestown S’Klallam Tribe, the Nisqually Tribe, the Puget Sound Partnership, the Port Gamble S’Klallam Tribe, the Squaxin Island Tribe, the Suquamish Tribe/Suquamish Foundation, the City of Tacoma, the Washington State Department of Fish and Wildlife, and Washington State University. Billy Frank Jr. was just […]

Remembering Ken Balcomb and his extraordinary life with killer whales

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I’m still adjusting to the world of killer whales without Ken Balcomb. Ken, who died Dec. 15 at age 82, was a constant presence throughout my career as an environmental reporter. His presence inspired many others among the so-called “killer whale community,” made of experts, observers and those who simply love and follow the stories of our beloved orcas. Ken, who I called the dean of killer whale research, founded the Center for Whale Research and established an amazing 46-year record of every birth and death among the Southern Resident […]

The quest continues for a nutrient reduction plan

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The quest continues for a large-scale plan to reduce human sources of nitrogen and improve the health of Puget Sound. This article is part of the Puget Sound Institute’s effort to explore the technical uncertainties related to the science of Puget Sound water quality. The project, jointly funded by King County and PSI, includes online workshops and discussions, along with informational blogs and articles. By Christopher Dunagan Human sources of nitrogen in Puget Sound have been blamed for increasing the intensity of algae blooms, lowering oxygen to critical levels, and […]

A network of computer models is predicting the future of Puget Sound

Tacoma Narrows Bridge viewed from Gig Harbor side https://www.flickr.com/photos/tomcollinsphoto/47070840014/in/photostream/
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A new $4.8 million dollar project led by the Puget Sound Institute links together a series of computer models to explore future scenarios across the watershed. Some of Puget Sound’s biggest concerns hold the greatest uncertainties.  Will we have clean water? Can the ecosystem sustain species like endangered salmon? How can the region continue to grow and still maintain healthy habitats for wildlife and people? What, in other words, is the future of Puget Sound? No one can travel through time to answer these questions firsthand (science has its limits), […]

As winter approaches, salmon and orcas are still a commanding presence

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With salmon and orcas still on the move and facing ever-changing weather conditions, I thought it might be time for a brief update to my blog post of Nov. 21. At the time of the last report, the Puget Sound region had gone through a 13-day dry spell, which followed a period of brief and limited precipitation. Low stream flows were making it tough for chum and coho salmon to go upstream when they should have been at their peak of spawning. Many unfortunate fish were dying before they could […]

Low rainfall leads to an odd and changing year for salmon, killer whales and people

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It has been an interesting year for observing the behavior of Southern Resident killer whales, chum salmon and humans in the Puget Sound region. Weather played a significant role. Two weeks ago, all three pods of endangered orcas spent four days together in Puget Sound, something we have not seen in years. Chum salmon, which the whales feed upon in the fall, appeared to be on a stop-and-go migration schedule because of the unusual rainfall pattern. And, as always, the activities of people must be noted within this ecological context. […]

Lawsuit seeks to block Southeast Alaska troll fishing to increase salmon for orcas

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How much should Alaskan fishing be curtailed to provide more food for the endangered Southern Resident killer whales? It is an important question, enmeshed in conflicting federal priorities and provoked by a lawsuit brought by Wild Fish Conservancy, a Seattle-based conservation group. A federal court ruled in August that the National Marine Fisheries Service had violated the Endangered Species Act and the National Environmental Policy Act in its approval of salmon harvests in the Southeast Alaska troll fishery. That fishery harvests Chinook salmon originating from streams as far south as […]

Event celebrates the anniversary of the Clean Water Act and new funding for Puget Sound

EPA Deputy Administrator Janet McCabe gave a speech about new federal funding for the environment while visiting the Center for Urban Waters in Tacoma.
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It could have been mistaken for a foggy morning along the waterfront, but the occasional coughs and burning eyes among the crowd of 60 or so people gathered here last Wednesday told a different story. Like much of the Northwest, Tacoma was shrouded in a haze of smoke from a spate of forest fires giving it and its neighbor Seattle the dubious distinction of having some of the worst air quality in the world, topping places like Delhi and Beijing. A group of policymakers, tribal leaders and elected officials were […]