Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Carnivora
- Family
- Phocidae
- Genus
- Halichoerus
- Species
- Halichoerus grypus
Habitat
Gray seals inhabit coastal waters of the North Atlantic, including rocky shores, sandy beaches, and ice floes in regions like the UK, Iceland, and eastern Canada. They prefer areas with access to both marine foraging grounds and haul-out sites for resting and breeding. This species is highly adaptable to various substrates but avoids heavily industrialized areas.
Diet
Gray seals primarily feed on fish such as herring, cod, and flounder, as well as squid and crustaceans. They are opportunistic hunters, diving to depths of up to 200 meters to catch prey, often at dawn or dusk. Feeding behavior includes solitary hunts or group foraging depending on prey availability.
Behavior
Gray seals are social animals that form large colonies on land during breeding and molting seasons, but they are more solitary at sea. They are diurnal, spending much of their time swimming and foraging, with males displaying territorial aggression during mating periods. Notable behaviors include loud vocalizations for communication and the ability to hold their breath for up to 20 minutes while diving.
Conservation Status
The gray seal is classified as Least Concern by the IUCN, with populations generally stable or increasing in many areas. Major threats include entanglement in fishing gear, habitat disturbance, and climate change impacts on prey availability.