IT IS one of those glass half-full moments. Commercial fish stocks in many threatened ecosystems are on the mend, thanks to good stewardship, while 63 per cent are still being fished at unsustainable levels, says a new survey.
This is a considerably rosier picture than the one painted by a 2006 study that projected a worldwide collapse of fisheries by 2048, based on current trends.
Ray Hilborn of the University of Washington in Seattle teamed up with the author of the 2006 report to measured the biomass of species caught each year. They compared this to estimates of sustainable fishing…
