For a Living Ocean

Declining fish stocks might give “crucial consequences for our species”

The world’s fish stocks are decreasing. It is estimateds that 90 % of all big fish are already gone. Dr. Michael Crawford, of Imperial College London, sys that “without plentiful DHA, we face a future of increased mental illness and  intellectual deterioration. We need to face up to that urgently”. Docosahexaenoic acid (DHA) is an omega-3 fatty acid found in seafood. You can find the article in Mail Online here: Early human ancestors were ‘aquatic apes’: Living in water helped us evolve big  brains and walk uprigIMG_7782ht, scientists say.

Michael Crawford – one of the speakers at the Human Evolution onference in London 8-10th of May –  states that Docosahexaenoic acid have been crucial for the development of our brains (as well as for other mammals making a living from the sea). According to Crawford we should eat 40 gram fish per day, 200 days a year.

However, by improving our mental health we will also completely undermine the marine stocks – and what will happen when we are another two billion people on the earth? Add overfishing to pollution, climate change and habitat destruction, and a picture of a system in crisis emerges.

One response

  1. Erik, thanks a lot, but this is not exactly what I said.
    Humans didn’t descend from “aquatic apes”, of course, although our Pleistocene ancestors were too slow & heavy for regular running over open plains as some anthropologists still believe.
    Instead, Homo populations during the Ice Ages (with sea-levels often 100 m lower than today) simply followed the coasts & rivers in Africa & Eurasia, eg, 800,000 years ago, they even reached Flores more than 18 km overseas.
    – google “econiche Homo”
    – eBook “Was Man more aquatic in the past?” introd.Phillip Tobias
    – guest post at Greg Laden’s blog
    – Human Evolution confer.London 8–10.5.13 with David Attenborough, Don Johanson etc.

    June 12, 2013 at 1:41 am

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