Hot Spots in Rivers that Nurture Young Salmon ‘Flicker On and Off’ in Alaska’s Bristol Bay Region

By on    Featured, The Arctic and Alaska Science  

Hot Spots in Rivers that Nurture Young Salmon ‘Flicker On and Off’ in Alaska’s Bristol Bay Region

Photo: A spawning sockeye salmon.Jason Ching/University of Washington Chemical signatures imprinted on tiny stones that form inside the ears of fish show that two of Alaska’s most productive salmon populations, and the fisheries they support, depend on the entire watershed. Sockeye and Chinook salmon born in the Nushagak River and its network of streams and […]

New Research From Arctic: Thawing Permafrost Peatlands May Add to Atmospheric Co2 Burden

By on    Featured, The Arctic and Alaska Science  

New Research From Arctic: Thawing Permafrost Peatlands May Add to Atmospheric Co2 Burden

  [dropcap]T[/dropcap]emperatures in the Arctic are rising twice as fast as in the rest of the world, causing permafrost soils to thaw. Permafrost peatlands are biogeochemical hot spots in the Arctic as they store vast amounts of carbon. Permafrost thaw could release part of these long-term immobile carbon stocks as the greenhouse gases carbon dioxide (CO2) […]