An explosive growth in the number of harbor porpoises in Puget Sound could be creating a ripple effect through the food web, with potential consequences for salmon, seals and even orcas. PSI senior writer Christopher Dunagan reports in Salish Sea Currents.
September 9, 2018
Studies show challenges for eelgrass restoration
As critically important eelgrass declines in some parts of Puget Sound, scientists are trying to plant more of it. The health of the ecosystem may be riding on their efforts, but what they are finding is something that farmers have known for thousands of years: Getting something to grow may be harder than you think. […]
August 29, 2018
Nights in the lives of the rhinoceros auklets of Protection Island
More than 70 percent of the seabird population of Puget Sound nests on a single island in the Strait of Juan de Fuca. That includes a massive colony of rhinoceros auklets that has drawn the interest of scientists and birders alike. Our writer Eric Wagner visited the island this summer and reports on a long-term […]
August 6, 2018
Are low flows changing in Puget Sound streams?
A 2018 report from Nicholas Georgiadis at the University of Washington Puget Sound Institute analyzes the effect of rainfall and human-caused factors on regional summer stream flows. The report is available on the Encyclopedia of Puget Sound.
August 6, 2018
For declining orcas, food is fate
The story of Puget Sound’s starving resident orcas has come into dramatic focus over the past two weeks. As the world watches an orca grieve for her dead calf, and tribes and federal agencies prepare to try to feed a dangerously emaciated three-year-old orca in Jpod, we look at how the lack of Chinook salmon […]
July 17, 2018
Equity and social science integration at the 2018 Salish Sea Ecosystem Conference
A new study looks at social science and equity integration within the proceedings of the 2018 Salish Sea Ecosystem Conference. The study was produced by David Trimbach on behalf of the Puget Sound Partnership for the Encyclopedia of Puget Sound and the Puget Sound Institute. From the report’s Introduction: Social science and equity are increasingly […]
July 16, 2018
New studies on emerging threats to salmon
Chemicals, disease and other stressors can increase a salmon’s chance of being eaten or reduce its ability to catch food. We wrap up our series on the Salish Sea Marine Survival Project with a look at some of the lesser-known, but still significant factors contributing to salmon declines in the Salish Sea. Read the story in […]
July 12, 2018
Removal of creosote-treated pilings may assist herring recovery
Thousands of abandoned wood pilings — the ghosts of piers and docks past — are located throughout Puget Sound. Most of them are treated with creosote, a toxic chemical used to preserve wood that contains polycyclic aromatic hydrocarbons (PAHs), a class of chemicals that are also associated with oil spills and burning of fossil fuels. […]
July 10, 2018
Could anchovies and other fish take pressure off salmon and steelhead?
A recent influx of anchovies into Puget Sound may have saved some steelhead from predators, but researchers seek more evidence to prove the connection. Our series on the Salish Sea Marine Survival Project continues with a look at these and other potential impacts from predators on the region’s salmon and steelhead. Read the story in […]
June 25, 2018
Opening the black box: What’s killing Puget Sound’s salmon and steelhead?
An intensive research program in the U.S. and Canada is studying why so few salmon in the Salish Sea are returning home to spawn. They are uncovering a complex web of problems involving predators, prey and other factors that put salmon at risk as they migrate to the ocean. Puget Sound Institute senior writer Christopher […]