At current rates of overfishing, jack mackerel stocks in the southern Pacific could collapse soon, the International Consortium of Investigative Journalists reports.
5 pounds of jack mackerel typically can go towards raising one pound of farmed salmon.
"This is the last of the buffaloes," Daniel Pauly, an oceanographer at the University of British Columbia, told ICIJ. "When they're gone, everything will be gone ... This is the closing of the frontier."