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"Southwest Fisheries Ecology News"

Southwest Fisheries Ecology News Results

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Researchers Probe Deaths of Central Valley Chinook, with Possible Ties to Ocean Changes

Deficiency in Vitamin B1 linked to higher juvenile mortality in California fish hatcheries.
October 28, 2020 - Feature Story ,
West Coast
Chinook Fry Offspring of endangered female winter-run Sacramento River Chinook salmon that had been injected with thiamine on their return to the Livingston Stone National Fish Hatchery. Biologists brought them to UC Davis as embryos and then examined them to tell if the fish that received supplemental thiamine injections produced healthier offspring. Photo by Heather Bell/UC Davis.

The Natural Portfolio: Spring-run Chinook Salmon - Essential to Life History Diversity

The value of spring-run Chinook salmon is more than just sustenance for tribes.
May 08, 2020 - Feature Story ,
West Coast

Spinal Deformities in Sacramento-San Joaquin Delta Fish Linked to Toxic Mineral Selenium, New Research Shows

Ear bones of fish revealed “diary of selenium exposure” that was key to unraveling the mystery.
February 24, 2020 - Feature Story ,
West Coast
Hand holding small fish with deformed spine

“Blob” Research Reveals Environmental Effects That Shut Down Fishing and Hiked Whale Entanglements

Unprecedented ecological changes inspire new online tools to better spot them next time.
January 27, 2020 - Feature Story ,
West Coast
Humpback whales commonly lunge out of the water in pursuit of prey. Credit: John Calambokidis/Cascadia Research Collective.

eDNA Expands Species Surveys to Capture a More Complete Picture

Casting a genetic net, eDNA identified more marine vertebrates than traditional surveys but has its limits.
December 19, 2019 - Feature Story ,
West Coast
scientists lower eDNA sampling bottles Collin Closek Stanford U.JPG

Salmon Lose Diversity in Managed Rivers, Reducing Resilience to Environmental Change

Natural resilience is more important than ever in the face of unprecedented climate change.
December 05, 2019 - Feature Story ,
West Coast
Smolt in hand

Research Cruise to Survey Deep-Sea Corals, Sponges, and Fish Habitat Along the West Coast

Live video feed from underwater submersible allows anyone to virtually join the expedition.
October 07, 2019 - Feature Story ,
West Coast
lizclarke.nwfsc.jpg

Looking Back at the Blob - Chapter 3: Unexpected Effects Conspire in Increased Entanglements

"Perfect storm of events" led to increased whale entanglements off West Coast, raising specter of even more unexpected results to come.
October 03, 2019 - Feature Story ,
West Coast
Entangled whale seen from above Disentanglement teams freed this whale in July 2017. Photo credit: Bryant Anderson/NOAA Fisheries, MMHSRP Permit#18786-01.

Looking Back At The Blob: Record Warming Drives Unprecedented Ocean Change

Temperatures of up to 7 degrees Fahrenheit above normal disrupted the marine ecosystem in both expected and surprising ways.
September 26, 2019 - Feature Story ,
West Coast
Young sea lion walking on a beach

New Marine Heatwave Emerges off West Coast, Resembles "the Blob"

Researchers are monitoring a new marine heatwave off the West Coast for effects on the marine ecosystem.
September 05, 2019 - Feature Story ,
West Coast
9.5.2019 Marine Heat Wave NOAA Coral Reef Watch 508.png Sea surface temperature anomaly maps show temperatures above normal in orange and red. Courtesy of NOAA Coral Reef Watch.