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Underwater view of two Pacific lamprey resting on rocks and sand.

Lamprey legacy: Eel-like fish return after dam removal

Prehistoric-looking lamprey are recolonizing parts of the Elwha River that they have not occupied for more than 100 years. Like salmon, the culturally and ecologically important fish also move from saltwater into rivers to spawn. And like salmon, lamprey were devastated by the dams that once blocked their way. We conclude our series 'Returning home: The Elwha's genetic legacy.'   

Underwater view of a single fish with red and white spots swimming above rocks

Good news for bull trout in the Elwha

Bull trout appear to be thriving in nearly every section of the Elwha River. Populations there have at least doubled in the years since dam removal, signaling good news for a species that has struggled throughout the West. We bring you part six of our series 'Returning home: The Elwha's genetic legacy.'

Underwater view of a large group of silver and grey fish

Opening the door for coho, chum, and pink salmon

Restoration managers are hopeful that populations of coho, chum and pink salmon will rebound on the Elwha River as the fish take advantage of newly accessible habitat. Part five of our series 'Returning home' examines the importance of genetically distinct salmon runs.

Three salmon with green heads and red bodies seen underwater

Sockeye among 'biggest unknowns' for Elwha salmon recovery

The return of sockeye to the Elwha River is intriguing scientists. Could nearby freshwater kokanee help re-establish resident populations? We continue with part four of our series 'Returning home: The Elwha's genetic legacy.' 

View of the Elwha River above the site of the former Glines Canyon Dam in 2021. Photo: Sylvia Kantor

Returning home: The Elwha's genetic legacy

Following dam removal, migratory salmon have been free to swim into the upper Elwha River for the first time in 100 years. Their actual behaviors and reproductive success may well be driven by changes in their genetic makeup. Our seven-part series 'Returning home' examines how the fish are doing and whether the Elwha's genetic legacy remains intact. 

A single steelhead trout swimming under water with rocks in background

Wild steelhead still a force in the Elwha

Migration patterns have apparently reawakened for the Elwha River's wild steelhead. Studies show that the fish may have retained much of their genetic drive despite 100 years of being trapped behind dams. We continue our series 'Returning home: The Elwha's genetic legacy' with part two of seven. 

Two fish swimming underwater with rocks below them.

Will the mighty spring Chinook rise again?

Our series 'Returning home: The Elwha's genetic legacy' continues with a look at the possible return of spring Chinook to the upper portions of the Elwha River. We bring you part three of seven.

A killer whale with a digital acoustic recording tag swimming in Puget Sound . Photo: NOAA/NWFSC (taken under NOAA research permit No.781-1824 and 16163).

Placing microphones on orcas offers a point-of-whale perspective on underwater noise

Research on the sounds and feeding behavior of Puget Sound's southern resident orcas is providing new insight into how the whales respond to underwater noise. A recent online conference brought together some of these findings along with discussions on how to reduce the impacts of noise from vessel traffic.

Two people in a small boat next to large boat being lifted from the water

Derelict vessels prompt cleanup efforts

A state law going into effect this month will significantly increase funding for the cleanup of abandoned and derelict vessels in Puget Sound. The funding will add about $4.3 million annually to remove hazardous sunken wrecks and related pollutants.

An adult yelloweye rockfish foraging for prey. Photo: Victoria O'Connell

Are yelloweye rockfish on the path to recovery?

New research suggests that recovery efforts are working for Puget Sound’s threatened yelloweye rockfish. Preliminary models show "considerable improvement" in population numbers.