vs Common Seal

Asperococcus ensiformis compared with Phoca vitulina

Key Differences

is Data Deficient while Common Seal is Near Threatened.

Taxonomic Classification

Rank		Common Seal
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Ochrophyta (Ochrophyta)	Chordata (Chordates)
Class	Phaeophyceae (Phaeophyceae)	Mammalia (Mammals)
Order	Ectocarpales (Ectocarpales)	Pinnipedia (Seals & Sea Lions)
Family	Chordariaceae	Phocidae (True Seals)
Genus	Asperococcus	Phoca (Harbor Seals)
Species	Asperococcus ensiformis	Phoca vitulina

Conservation Status

DD — Data Deficient

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

Range

Distributed across Denmark, New Zealand, and Norway.

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.

Asperococcus ensiformis is a tubular to flattened brown alga forming elongated, sac-like or sword-shaped thalli attached to rocky substrates. It inhabits intertidal and shallow subtidal rocky shores of the North Atlantic and Mediterranean coasts. This photosynthetic macroalga grows on rocks and larger algae in wave-exposed coastal zones.

Common Seal

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.