Friday, 6 April 2007

Scientists warn that depleted shark populations disrupt marine ecosystems

In research published in the journal Science, scientists have warned that the depletion of shark populations is disrupting marine ecosystems.

The research suggests that overfishing of sharks releases their prey from predation, causing a knock-on effect down the food chain. A team of biologists from Dalhousie University analysed data from the past 35 years, finding that while 11 shark species had dramatically declined in abundance, 12 of the 14 fish species they prey on had increased.

The lead author of the research, Dr. Ransom Myers, a world-renowned fisheries biologist, sadly passed away on March 27, aged 54.

Read more here...

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