dogfish vs European otter

Scyliorhinus canicula compared with Lutra lutra

Key Differences

• dogfish is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	dogfish	European otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Carnivora (Carnivorans)
Family	Scyliorhinidae	Mustelidae (Weasels & Otters)
Genus	Scyliorhinus	Lutra (Otters)
Species	Scyliorhinus canicula	Lutra lutra

Evolutionary Relationship

dogfish and European otter share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

dogfish

LC — Least Concern

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	dogfish	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

dogfish

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

European otter

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

European otter

Sleek semi-aquatic mustelid found along clean rivers, streams, and coastlines across Europe and Asia. European otters can reach 1.3 meters in length and are highly skilled fish hunters, using sensitive whiskers to detect prey movements. Requiring unpolluted water with abundant fish, they are an indicator species for freshwater ecosystem health. Once nearly extinct in Western Europe from hunting and pollution, populations have recovered significantly following water quality improvements.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden