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Diverse Habitats Help Salmon Weather Unpredictable Climate Changes

Chinook in three creeks may be vulnerable alone, but resilient together.
March 13, 2024 - Feature Story ,
West Coast
Chinook salmon jumping out of the water Spring-run Chinook salmon in California’s Central Valley were once the backbone of California’s commercial salmon fishery, but are now a threatened species that remain in a few tributaries of the Sacramento River. Photo: Carson Jeffres / University of California, Davis

Life on an Active Volcano: Fur Seals Adapt to a Changing Landscape on Bogoslof Island - Part 2

Volcanic eruptions at Bogoslof have changed the landscape dramatically. It’s home to a thriving breeding ground of northern fur seals. Scientists monitor the fur seal population every 4 years to understand how they respond to such a dynamic environment.
March 13, 2024 - Feature Story ,
Alaska
Aerial view of Bogoslof Island in June 2022 showing the impact of the volcanic eruption from 2019 Aerial survey imagery from June 2022 along with a white outline showing the former size in 2019. Erosion has changed the island dramatically since it tripled in size after the eruptions in 2016-2017. Credit: NOAA Fisheries/Alexey Altukhov and Burlyn Birkemeier.

New Study Sheds Light on Detection Range of eDNA

Findings will be applied to future fisheries surveys.
March 13, 2024 - Feature Story ,
Alaska
View of harbor with blue water and mountains in the distance Salmon net pens containing >46 million juvenile chum salmon in Amalga Harbor, Southeast Alaska. Credit: NOAA Fisheries/Patrick Barry

Life on an Active Volcano: Fur Seals Adapt to a Changing Landscape on Bogoslof Island - Part 1

Biologists return for the first time in 4 years to find that the island and the distribution of northern fur seals was radically different.
March 12, 2024 - Feature Story ,
Alaska
Dark brown northern fur seals on the beach of a island with an active smoking volcano in the background Northern fur seal rookery on the shores of Bogoslof Island, an active volcano on the Aleutian chain. In the background, the volcano’s vent steams in this photo from August 2019. Credit: NOAA Fisheries/Paul Hillman taken under NOAA Fisheries Permit #14327.

Enhancing Wild Red King Crab Populations Through Hatchery-Rearing Programs

Scientists examine effects of release timing and size at release on survival of hatchery-reared red king crab.
March 07, 2024 - Feature Story ,
Alaska
Tiny red crab with spikes Underwater photograph of a juvenile red king crab. Credit: NOAA Fisheries/Chris Long

Cold Water Connection Campaign Reopens Rivers for Olympic Peninsula Salmon and Steelhead

With $19 million in NOAA funds, nonprofit and tribal partners plan to remove 17 barriers blocking fish passage on critical spawning rivers originating in Olympic National Park, Washington.
February 21, 2024 - Feature Story ,
West Coast
Washington coast coho migration (Photo: Paul Jeffrey/Wild Salmon Center) Washington coast coho migration (Photo: Paul Jeffrey/Wild Salmon Center)

Cracking the Code: Scientists Use DNA to Examine Differences between Hatchery and Wild Chinook Salmon in Southeast Alaska

Hatchery-reared salmon show genetic differences from wild populations in only a few generations, but those differences vary among hatcheries.
February 14, 2024 - Feature Story ,
Alaska
Large school of fish swimming in greenish water

Public Input Helps Improve our Understanding of Marine Ecological Relationships in Alaska

Critical links identified between young pollock survival and changes in habitat and prey availability over a 60-year timeframe.
February 13, 2024 - Feature Story ,
Alaska
food web for Bering Sea fish and other species, graphic showing connections between species This is a path diagram for the Bering Sea and Aleutians Islands marine ecosystem. It shows linkages between ecosystem variables. Arrows correspond to suspected relationships. An arrow pointing from X to Y indicates that a change in X is estimated to cause a change in Y. The number next to each arrow shows the estimated magnitude of the change (red arrows indicate a negative change and blue arrows indicate a positive change).

60 Years of Science on the Atlantic

The Northeast Bottom Trawl survey reached a major milestone when it turned 60 years old in fall 2023. Learn how this survey is conducted and how it informs science and management in the Atlantic.
February 01, 2024 - Podcast ,
New England/Mid-Atlantic
Survey tow net is hauled up with catch for sorting and processing After each survey tow, the net is retrieved and the catch is emptied into a hopper where a series of conveyors move the catch to the sorting and processing area aboard the NOAA Ship Henry B. Bigelow. There, scientists sort the catch and collect data and biological samples. Credit: NOAA Fisheries/Jessica Blaylock

10 Projects Will Support Urban Fish Restoration around Portland, Oregon

With $3.8 million in funding from NOAA’s Office of Habitat Conservation, the Clackamas Partnership is removing fish passage barriers and restoring habitat to benefit threatened Chinook salmon and steelhead.
February 01, 2024 - Feature Story ,
West Coast
View of greater Portland, Oregon, area (Photo: Zack Frank/Adobe Stock) View of greater Portland, Oregon, area (Photo: Zack Frank/Adobe Stock)