No More Seafood By 2050?

www.newscientist.com
There may be no more commercial fish stocks left in the sea by 2050, according to a new study cataloguing the global collapse of marine ecosystems.

It blames not just over-fishing, but also mankind’s wider attack on the health of ocean ecosystems, for instance from pollution. “Unless we fundamentally change the way we manage all the ocean species together, as working eco-systems, then this century is the last century of wild food,” says Steve Palumbi at Stanford University in California, US, who carried out the four-year investigation with colleagues.

A healthy ecosystem keeps fish healthy and well fed, and maintains fish nurseries such as coral reefs and seagrasses. But there are fewer such healthy systems each year. Since 1950, 29% of commercial fish species have suffered collapse (defined as a loss of 90% or more). And the pace is accelerating.


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