Slashdot Mirror


The World is Losing Fish to Eat as Oceans Warm, Study Finds (nytimes.com)

Fish populations are declining as oceans warm, putting a key source of food and income at risk for millions of people around the world, according to research published last week. From a report: The study found that the amount of seafood that humans could sustainably harvest from a wide range of species shrank by 4.1 percent from 1930 to 2010, a casualty of human-caused climate change. "That 4 percent decline sounds small, but it's 1.4 million metric tons of fish from 1930 to 2010," said Chris Free, the lead author of the study, which appears in the journal Science. Scientists have warned that global warming will put pressure on the world's food supplies in coming decades. But the new findings -- which separate the effects of warming waters from other factors, like overfishing -- suggest that climate change is already having a serious impact on seafood.

[...] As the oceans have warmed, some regions have been particularly hard-hit. In the northeast Atlantic Ocean and the Sea of Japan, fish populations declined by as much as 35 percent over the period of the study. "The ecosystems in East Asia have seen some of the largest decline in fisheries productivity," Dr. Free said. "And that region is home to some of the largest growing human populations and populations that are highly dependent on seafood."

8 of 144 comments (clear)

  1. Overfishing had nothing to do with it by Anonymous Coward · · Score: 4, Insightful

    Yep, it's all climate change. Decades of documented overfishing and thousands of studies that correctly connect overfishing with declining fish populations are completely meaningless now.

  2. Are the oceans really warming much at all by SuperKendall · · Score: 5, Insightful

    Turns out there was a major problem with the study it said it was.

    Also the ocean temperature drops rapidly as you go lower, the ocean temperature just a few feet down is not going to be changing much at all. Lots of fish spend most time below the very top layer.

    The decline in fish populations is more likely a result of overfishing, something we should be working against - but thankfully there are quite a lot of fish farms these days, so the supply of fish for the world to eat is not as threatened as the summary makes it out to be.

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley
  3. Hmmm... by Shaitan · · Score: 4, Insightful

    ""The ecosystems in East Asia have seen some of the largest decline in fisheries productivity," Dr. Free said. "And that region is home to some of the largest growing human populations and populations that are highly dependent on seafood."

    Sounds like a natural correction cycle.

    1. Re:Hmmm... by Anonymous Coward · · Score: 2, Insightful

      When you set out to prove climate change, then everything is because of climate change.

      Therefore, the obvious flashing neon sign alternate explanation of over-fishing must be ignored, because shut up.

    2. Re:Hmmm... by kenh · · Score: 1, Insightful

      Of course, that there are countless numbers of poor people that go out and look for free food in the ocean has no bearing at all on the fish population - nope, it's because of warmer weather.

      --
      Ken
    3. Re:Hmmm... by bobbied · · Score: 2, Insightful

      When you set out to prove climate change, then everything is because of climate change.

      Therefore, the obvious flashing neon sign alternate explanation of over-fishing must be ignored, because shut up.

      Please be accurate here. The authors of the study claim to have isolated out the effect of water temperature form their data. They claim overfishing is the by far the biggest factor, but that they where able to isolate other factors in their data.

      I've not seen the study so it's anybody's guess as to what methods they used to interpret their data, or if their results are sufficiently outside the margin of error to be able to make their claim. I suspect there is more to this story they are not reporting and that the truth is they may be just reporting a statistically insignificant variation as a hard fact, when it's not. But the real point here is to justify and secure more funding by generating some PR with the willing press.

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
  4. Re:The world is also losing fish by Anonymous Coward · · Score: 0, Insightful

    You're right. Humanity just doesn't get it, and we will be extinct soon enough. The warnings have been around for decades and people are still more interested Taylor Swift's latest dress and Trump-bashing than actually doing anything.

  5. More bullshit by Virtucon · · Score: 4, Insightful

    Stop, enough. it's not about Climate Change, it's about overfishing and using fishing technologies that destroy habitat. We've known about this for decades and yet we still bottom dragging net catches and huge factory ships to overtax the eco system. Species are being wiped out because of their desirability and now sadly, rarity. This has nothing to do with fucking climate hoax and has everything to do with greed and too many people.

    --
    Harrison's Postulate - "For every action there is an equal and opposite criticism"