A new study analyzing more than 230 fisheries has found that their sustainability is likely overstated worldwide, and previous estimates of the number of fish in the ocean globally may have been too optimistic.
"Currently, in many fisheries, we may be catching more fish than is sustainable. Fisheries feed the livelihoods of many coastal people, and our cultures are intimately tied to fisheries and fishing practices. If we care about future generations and want healthy ocean systems, we need to rethink how we’re managing our fisheries," said Bates in a news release.
In the study, researchers conducted a retrospective analysis that compared past estimates of stock size in worldwide fisheries with new estimates for the same year made with more recent data. The study included data from Canadian fisheries, including Pacific herring fisheries in the Strait of Georgia and western Vancouver Island.
“A bias towards overestimating fish stocks in overfished fisheries could lock in stock collapse, as the decline in fish may not be noticed until it’s too late to take precautionary measures,” noted Bates in the release. “If we want to avoid collapses in fisheries around the world, which would have far-reaching impacts on ocean health and food security, a more precautionary approach to fisheries management is vital.