East Coast cod recovery found to be

Nova Scotia's Atlantic cod recover from the collapse of their dramatic new evidence show ten years ago — and recovery of ecosystems with them.

Scotian Shelf, with lead times of 8 to 18 percent in the similar species and more than in 1992, 2005, 2006, between their ages have been large for 2010. Ap

Canada says with time, you can return the proposed major changes to the marine ecosystem research published in science journal nature on Wednesday.

It is also "sign" other cod populations in the North has not yet recovered, Bedford Institute of Oceanography, Dartmouth, Kenneth Frank N led by researchers at S.. research says that along the East Coast

After a trial, Nova Scotia with looting once the East side of the Scotian Shelf millions of cod at sea since 1993 more than 10 years, despite the moratorium on cod fishing capelin and herring and plankton-eating fish such as the many small, dominated by the left. Ecosystems irreversibly led to fear had been changed.

Frank's research has shown that fear, has been partially by uncovering why cod recovery easy for so long.

"This unfolding drama held many surprises," the paper says.

Study on the collapse of the cod eat plankton such as Carnivore "forage fish" is the result of a population explosion. Up to 9 times the mass of these fish in the sea in 1994, 1999, the peak of what is reached before the collapse of the Cod. bumps At the same level as they sought to compete and sometimes cod eggs and cod population recovery ate a baby cod.

But the lack of food resources and plankton eaters and in the end, their population had begun to decline steadily early.

In 2005, where they went to the "recovery" State of the ecosystem around the population began to rise again the sign.

The researchers that the population of the invasive fish predators in the conflict "a window of opportunity" for the recovery of cod is a good idea to provide the same.

Since 2006, the bulk of the Scotian Shelf in the Atlantic Ocean in the early 1990s, cod and haddock reach that level, another Carnivore has grown to a mass of "unprecedented high", the paper says.

In addition, live near the bottom of the sea and the other 8% and 18% more big fish their age in the period 2006-2010 the massive measure between 1992-2005, compared to.

"Change the number of factors, but the current trajectory of positive sustainable ecosystem recovery," the researchers warned.

They make it uncertain that the cod haddock's current dominant ecosystem will return completely before the collapse, whether it is based on the way. They break into slowed collapsed elsewhere jellyfish blooms and fish population recovery while paper effects of climate change, you can add other uncertainties.

The researchers even though they are slower, the number of fishing and the cold sea, keep some of those areas is lower due to their marine species research proposals that could have happened, in the Northwest Atlantic Ocean, you can recover the other cod population.

Northwest Atlantic Fisheries Organization, the Scientific Committee for 2010, see Grand Bank, Newfoundland in the cod population in the Highlands Southeast of 69% growth since 2007. However, still only 10 percent shares in the 1960s, were what.

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