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Illegal and pirate fishing take place in many parts of the world.
Prof Callum Roberts, at the University of York in the UK and not part of Pauly's team, said: "We can see more clearly now, for example, the immense value of fish to poor people in developing countries," he said.
With so little of the ocean closed to fisheries - less than 1% - it's hardly shocking that many seabirds are suffering from overfishing.
Hammill said the "most pressing issue" is plastic pollution.
"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.
The new research estimates the peak catch was 130 million tons, but declined at 1.2 million tons per year afterwards.
Paleczny and Hammil's research found that the tern family has fallen by 85%, frigatebirds by 81%, petrels and shearwaters by 79%, and albatrosses by 69%.
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.
In contrast, nearly 15% of the world's terrestrial landscape is protected.