The resilience of sockeye salmon runs in Alaska’s Bristol Bay -– after a century of fishing theyre as healthy as theyve ever been – is about strength in numbers.
Its not just an abundance of fish, although the numbers returning to spawn is tens of millions more than the total across the lower 48 states and prudent actions by fishermen and the Alaska Department of Fish and Game have helped make it a classic example of a sustainable fishery.
As it turns out, its also about having a large number of population segments, or components, the fish in each programmed to breed and thrive under conditions somewhat different from the fish in other components, University of Washington researchers report in this weeks Proceedings of the National Academy of Sciences.
Sandra Hines | EurekAlert!
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At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
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