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Earth

Crustacean Decimation Due To Climate-Change-Driven Cannibalization (time.com) 161

Last week, the Alaska Department of Fish and Game canceled the winter snow crab season in the Bering Sea due to their falling numbers. "Officials suggested that a combination of climate change and some kind of crustacean health crisis might be to blame," reports TIME Magazine. "But that's only part of the story, says Wes Jones, the Fisheries, Research, and Development Director for the Norton Sound Economic Development Corporation." The most immediate cause of their death: "a mass cannibalism frenzy." An anonymous reader shares an excerpt from the report: To understand what really happened in the icy depths of Alaska's Bering Sea this year means going back to 2017, when fishermen started reporting an unprecedented population explosion of juvenile snow crabs -- what is called, in crabber speak, a "recruit." The population boom continued into 2018 and 2019, creating what Jones says was the largest recruitment event on record. Jones is something of a local piscine historian. He can quote fishery statistics going back 30 years in the same way a Red Sox fan might quote batting averages. At the time the young crabs were too small for a legal harvest -- juvenile snow crabs take four to five years to mature -- but there were enough of them for seasoned crabbers to start the count-down to huge hauls starting in 2022.

In the meantime, Bering Sea temperatures, which usually hover around freezing, were on the rise, spiking several degrees between 2017-2019. Unlike mammals, who use less energy when temperatures rise, cold-water fish and crustaceans speed up their metabolism. The faster the crabs grow and expend energy, the faster they have to replace it, says Jones. Some of the crabs may have headed north into cooler Russian waters, but most seem to have stayed put. "All of a sudden you had this huge number of little crabs coming up, eating themselves out of house and home," says Jones. "Then the water warmed, which meant they had to eat more." It was a double whammy, he says, and the results were inevitable for a hungry, omnivorous species that has run out of its usual food source: "They basically cannibalized each other."

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Crustacean Decimation Due To Climate-Change-Driven Cannibalization

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  • by Anonymouse Cowtard ( 6211666 ) on Wednesday October 19, 2022 @11:16PM (#62981879) Homepage
    Soylent Green is PEOPLE!
  • That last crab is going to be one big mother.
  • Meanwhile people keep denying the truth for some bits of colored paper.
    • by Thud457 ( 234763 )
      I dunno man, "massive cannibal crab population collapse event" sounds downright Lovecraftian to me.
  • by ishmaelflood ( 643277 ) on Thursday October 20, 2022 @02:38AM (#62982125)

    seems like it varies a lot

    https://www.beringclimate.noaa... [noaa.gov]

    Scientists as opposed to journalists are pointing at overfishing.

    • We don't even know yet if they have just fucked off to somewhere else as they have done in the past

    • by thegarbz ( 1787294 ) on Thursday October 20, 2022 @08:03AM (#62982551)

      seems like it varies a lot

      https://www.beringclimate.noaa... [noaa.gov]

      Scientists as opposed to journalists are pointing at overfishing.

      And you based all that on a graph that finishes nearly 2 decades before the time the story is about?

      I heard there was an iceage a million years ago, so global warming disproven! Hurrah. I'm off to turn on the AC with the window open now that I have averted the crisis. Woooo!

    • Source please. I've searched around for this specific connection, specifically targeting China.

      I researched this based on what China is doing around the Galpagos Islands:
      https://www.theguardian.com/en... [theguardian.com]

      I couldn't find anyone citing a connection between Bering crag populations and overfishing. Tracking such as in that article would be similar for crabs I would expect.

      All I've found has the "scientists" saying warmer waters and disease are possible culprits. Fishing is mentioned but dismissed.

  • Snow crabs so delicious they cannot help eating each other!
  • by pz ( 113803 ) on Thursday October 20, 2022 @06:10AM (#62982357) Journal

    What a missed opportunity for a fully alliterated headline!

    Climate-Change Cannibalization Causes Crustacean Collapse Crisis

    --- or ---

    Crabby Crabs Consume Compatriots in Climate-Change Catastrophe

    --- or ---

    Crab Cohort Cross in Climate-Change Claw-on-Claw Crush

    --- or ....

    Um, hello? Anyone?

    Ok, ok, I'll see myself out now.

       

    • What a missed opportunity for a fully alliterated headline!

      Climate-Change Cannibalization Causes Crustacean Collapse Crisis

      --- or ---

      Crabby Crabs Consume Compatriots in Climate-Change Catastrophe

      --- or ---

      Crab Cohort Cross in Climate-Change Claw-on-Claw Crush

      --- or ....

      Um, hello? Anyone?

      Ok, ok, I'll see myself out now.

      I too, miss the Weekly World News.

    • by MobyDisk ( 75490 )

      I feel like you overvalue alliteration or undervalue rhymes. I am quite content with a headline combining Crustacean, Decimation, and Cannibalization! And "Crabby Crabs?" That's pretty mid.

  • ...by La Nina.

    ENSO is a thing, and ENSO deniers are going to downmod this comment ruthlessly.

  • by kackle ( 910159 ) on Thursday October 20, 2022 @07:51AM (#62982527)
    Now ask yourself whether the receptionist needs two computer monitors.

    An interesting side note: Did you know an optical mouse uses ~ 5 times the power of a ball mouse?
  • People always want to talk about the structural issues that lead to poverty and poor outcomes, but I think the focus should be on the crab-on-crab violence. These things are acting like animals, killing each other over a meal.

  • How can we get politicians and lawyers to do this?

Ocean: A body of water occupying about two-thirds of a world made for man -- who has no gills. -- Ambrose Bierce

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