Marine mammal predator control is governed by the Marine Mammal Regulations under the Fisheries Act. Records of marine mammal mortalities are maintained and results reported publicly. Additional licences can be obtained for control of other species.
Fisheries and Oceans Canada works with industry to improve marine mammal deterrent and control measures. At present, the most common system includes anti-predator netting that surrounds the facility structure on all sides and from below. Fisheries and Oceans Canada biologists conduct site audits and inspections to ensure that licence holders are complying with their licence conditions and implementing elements of their predator management plans. Aquaculture facilities must report marine mammal fatalities to Fisheries and Oceans Canada.