Fast Fall of Mediterranean Sharks
By Wendy Heller, June 12, 2008 @ 02:00 AM (EST)
Source: Bbc.co.uk
Sharks in the Mediterranean Sea have undergone a massive decline over the last two centuries, scientists have discovered from historical records.
Some species shrunk by more than 99% over the period, mainly due to fishing.
Researchers used fishermens' notes and archive records to plot population trends of five top predatory sharks.
The study, in the journal Conservation Biology, comes just weeks after a warning that half of the world's ocean-going sharks face extinction.
Sharks and their close relatives, the rays, are particularly vulnerable to over-fishing as they grow and reproduce slowly...
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