As many as half a million fish at Gray Aqua salmon farm on the south coast of Newfoundland, Canada are to be culled, after testing positive for infectious salmon anemia (ISA).

The Canadian Food Inspection Agency ordered the cull, Thursday, according to local media reports.

This is the third case of ISA reported in Newfoundland in the past year. Last summer, salmon from a Gray Aqua site in Butter Cove were destroyed after a case of ISA was confirmed.

Clyde Collier, vice-president of Gray Aqua, said at the time the affected fish would be made into fishmeal, reported The Telegram.

Fish