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Ocean-Going Robots Effective at Surveying Pollock

By Alaska Fisheries Science Center on Dec 29, 2020   Featured, NOAA Fisheries and Alaska Fisheries Science Center, The Arctic and Alaska Science  

Ocean-Going Robots Effective at Surveying Pollock

This may be the first time data collected using uncrewed surface vehicles were used to help produce an annual estimate of abundance for a commercial fish stock. Every other year, NOAA Fisheries conducts an acoustic-trawl survey from crewed research vessels to measure pollock abundance in Alaska’s eastern Bering Sea. As a result of COVID-19, many […]

What Happened to the Pollock Born in 2015?

By Alaska Fisheries Science Center on Oct 13, 2020   At Sea, Featured, Science/Education  

What Happened to the Pollock Born in 2015?

  New study sheds light on myriad factors that likely contributed to low survival rate of fish born during a Blob year in the Gulf of Alaska. In 2015, NOAA Fisheries scientists saw the lowest number of pollock larvae in the 30-year history of their Gulf of Alaska spring survey. They also observed the lowest […]

Rare Albino Fur Seal Pup Stands Out

By Alaska Fisheries Science Center on Sep 23, 2020   Featured, NOAA Fisheries and Alaska Fisheries Science Center  

Rare Albino Fur Seal Pup Stands Out

  NOAA Fisheries Affiliate Vladimir Burkanov discovered an albino fur seal on a recent research trip to the remote island of Tyuleny in the Sea of Okhotsk, Russia.   The reddish-gold pup has very light colored eyes and pink flippers. It was born in July on the island, which supports a large fur seal colony.  The […]

Autonomous Vehicles Help Scientists Estimate Fish Abundance While Protecting Human Health and Safety

By Alaska Fisheries Science Center on Jun 3, 2020   At Sea, Featured, Science/Education  

Autonomous Vehicles Help Scientists Estimate Fish Abundance While Protecting Human Health and Safety

  An innovative scientific approach to survey Alaska pollock this year. Scientists are capitalizing on existing technological capabilities and partnerships to collect fisheries data. This will help fill the information gap resulting from the cancellation of FY20 ship-based surveys due to the COVID-19 pandemic. NOAA Fisheries plans to use autonomous surface vehicles to collect some […]

Archival Tagging Study Reveals Habitual Movements of Greenland Turbot in Alaska

By Alaska Fisheries Science Center on May 22, 2020   Featured, NOAA Fisheries and Alaska Fisheries Science Center, Science/Education  

Archival Tagging Study Reveals Habitual Movements of Greenland Turbot in Alaska

  A multiyear archival tagging study identified consistent seasonal and daily patterns of depth-specific behavior by Greenland turbot in Alaska. These new findings provide key information for sustainably managing this commercially valuable population in a changing environment. Migration and Management of Greenland Turbot Although Greenland turbot have been well studied in the Atlantic Ocean, relatively little is known about […]

Using Artificial Intelligence to Identify Endangered Beluga Whales

By Alaska Fisheries Science Center on Mar 28, 2020   Featured, NOAA Fisheries and Alaska Fisheries Science Center, Science/Education  

Using Artificial Intelligence to Identify Endangered Beluga Whales

  Scientists partnered with tech industry experts to develop the first machine learning application for acoustic monitoring of Alaskan beluga whales. An innovative machine learning application will help scientists collect information essential to protect and recover the endangered Cook Inlet beluga whale population.  In 1979, the Cook Inlet beluga population began a rapid decline. Despite being protected as an […]

Understanding Ocean Changes and Climate Just Got Harder

By Alaska Fisheries Science Center on Mar 28, 2020   Featured, NOAA Fisheries and Alaska Fisheries Science Center, Science/Education  

Understanding Ocean Changes and Climate Just Got Harder

The Pacific Decadal Oscillation and North Pacific Gyre Oscillation are not as effective at helping us predict regional environmental and ecological change as in the past. A new study shows that two important indicators for understanding and predicting the effects of climate variability on eastern North Pacific marine ecosystems are less reliable than they were historically. […]

NOAA Fisheries Part of International Team to Study Salmon in Gulf of Alaska Under Continuing Warm Conditions

By Alaska Fisheries Science Center on Mar 13, 2020   Featured, NOAA Fisheries and Alaska Fisheries Science Center  

NOAA Fisheries Part of International Team to Study Salmon in Gulf of Alaska Under Continuing Warm Conditions

  NOAA Fisheries scientists are part of an international team that set sail on April 11. They are studying the impacts of continued warm ocean temperatures in the Gulf of Alaska on Pacific salmon survival.  It has been estimated that one-third of all Pacific salmon spend the winter in the Gulf of Alaska. While reduced in […]

New Study Shows Pacific Cod Eggs are Highly Vulnerable to Changes in Bottom Temperature

By Alaska Fisheries Science Center on Feb 25, 2020   Featured, NOAA Fisheries and Alaska Fisheries Science Center  

New Study Shows Pacific Cod Eggs are Highly Vulnerable to Changes in Bottom Temperature

  The 2013 to 2016 marine heatwave—known as “The Blob”—is the largest warm anomaly ever recorded in the North Pacific. In the Gulf of Alaska, scientists have connected low numbers of Pacific cod larvae, juveniles, and adults to loss of spawning habitat. This occured during and immediately following the heatwave. Compounding the ecological loss is the […]

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