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Su trovi la più importante raccolta porno suddivisa nelle categorie più ricercate.I migliori video hard ed erotici di donne mature, pornostar nazionali/internazionali e quelli di ragazze della porta accanto.Lascelles said: "Increased efforts should be made to rid seabird colonies of invasive species, reduce bycatch in fisheries or the ensnaring of birds in fish nets, and setting up conservation areas." Paleczny also called for the creation of international marine protected areas to cover the wide ranges of seabirds.Currently, only 2% of the world's oceans are under some form of protection and less than half of those ban fishing altogether.Birds even feed plastic bits to their young, killing their fledglings en masse.In the end, large-scale actions to help seabirds could also go a long way in cleaning-up our increasingly trashed marine ecosystems.This spells trouble for marine animals that are now having difficulty building shells, growing and sometimes even surviving in increasingly corrosive waters.Seafood is the critical source of protein for more than 2.5 billion people, but over-exploitation is cutting the catch by more than 1 million tons a year.
Prof Daniel Pauly, at the University of British Columbia in Canada and who led the work, said the decline is very strong and "is due to countries having fished too much and having exhausted one fishery after another." Prof Boris Worm, at Dalhousie University in Canada and not involved in the new research said.
"The fact that we catch far more than we thought is, if you like, a more positive thing," he said.
"Because if we rebuild stocks, we can rebuild to more than we thought before." There has been success in some places where fishing has been restricted for a few years, for example in the Norwegian herring and cod fisheries. Pauly said: "I don't see African countries, for example, rebuilding their stocks, or being allowed to by the foreign fleets that are working there, because the pressure to continue to fish is very strong.
"This was a Herculean task that no one else has ever attempted.
While the results necessarily remain uncertain, they undoubtedly represent our most complete picture yet of the global state of fish catches." Worm said the world's fisheries were being over-exploited but that some stocks were being sustainably managed: "Where such measures have been taken, we find that both fish and fishermen are more likely to persist into the future." Global fish catches rose from the 1950s to 1996 as fishing fleets expanded and discovered new fish stocks to exploit.
We need your help to ask President Barack Obama and the Environmental Protection Agency to get working on a bold plan to curb ocean acidification.