Atlantic Cordgrass vs Common Seal

Sporobolus alterniflorus compared with Phoca vitulina

Key Differences

Atlantic Cordgrass is Not Evaluated while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Atlantic Cordgrass	Common Seal
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Poales (Grasses)	Pinnipedia (Seals & Sea Lions)
Family	Poaceae (Grass Family)	Phocidae (True Seals)
Genus	Sporobolus	Phoca (Harbor Seals)
Species	Sporobolus alterniflorus	Phoca vitulina

Conservation Status

Atlantic Cordgrass

NE — Not Evaluated

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Atlantic Cordgrass	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Atlantic Cordgrass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada, Norway, and United States.

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Atlantic Cordgrass

The Atlantic Cordgrass (Sporobolus alterniflorus) is a species in the genus Sporobolus. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

The most widely distributed pinniped, harbor seals inhabit temperate and subarctic coastal waters of both the North Atlantic and North Pacific. Adults reach up to 130 kg and spend roughly equal time at sea hunting fish, squid, and crustaceans and hauling out on beaches or rocks to rest. Their large, expressive eyes are adapted for underwater vision in low light. Harbor seals are a critical food source for orcas, sharks, and polar bears.