VANCOUVER - More than 50 of British Columbia's top chefs are calling on the province to end leases for open net-pen salmon farms dotting coastal waters.

The group has sent a letter to the forests and agriculture ministers, urging them to terminate salmon farm operations opposed by First Nations as those salmon farm leases come up for renewal in June.

Chef David Hawksworth of Hawksworth Restaurant, which ranked third on the 2017 list of Canada's top 100 restaurants, says the food industry can't thrive unless the food sources it relies on are also healthy.

He says chefs are dedicated to serving the best in terms of ethical sourcing, taste and nutrition, and he and the other chefs say it is vital that B.C. develops and maintains sustainable food sources.

Scientist David Suzuki also added his name to the protest letter sent to the ministers, saying science shows that open net-pen farms create a risk to wild salmon from parasites and disease.

The B.C. government is considering to renew tenures for 20 open net-pen salmon farms in the Broughton Archipelago, which is a key migratory route for wild salmon.