It hasn’t been long since we added fish to the list of superfoods (credited with everything from reducing kidney cancer risks to improving the brainpower of your fetus if taken during pregnancy), but if we’re not careful we may be the last generation to enjoy the health benefits.

A report by an international team of biologists and economists warns that if we continue on our current path much of the world’s fish populations could be wiped out before the middle of this century. In this video, Worldwatch senior researcher Brian Halweil explains what we as consumers can do to turn the tide.