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Home»Posts tagged with»blob

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 […]

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 […]

‘The Blob,’ Food Supply Squeeze to Blame for Largest Seabird Die-off

By Michelle Ma | University of Washington on Jan 16, 2020   At Sea, Featured, Science/Education  

‘The Blob,’ Food Supply Squeeze to Blame for Largest Seabird Die-off

  The common murre is a self-sufficient, resilient bird. Though the seabird must eat about half of its body weight in prey each day, common murres are experts at catching the small “forage fish” they need to survive. Herring, sardines, anchovies and even juvenile salmon are no match for a hungry murre. So when nearly […]

Alaska Cod Populations Plummeted During The Blob Heatwave— New Study Aims to Find Out Why

By Alaska Fisheries Science Center on Dec 1, 2019   Featured, The Arctic and Alaska Science  

Alaska Cod Populations Plummeted During The Blob Heatwave— New Study Aims to Find Out Why

Scientists simulated the Blob marine heatwave in the laboratory to assess the effects of past and future climate change on one of Alaska’s valuable commercial fish. Preliminary findings from a new laboratory study suggest that when ocean temperatures rise, lower fat prey leads to slower growth for juvenile Pacific cod.   Scientists are evaluating how changes […]

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