Otter, Fischotter vs Kleine Rissoschnecke

Lutra lutra compared with Rissoa parva

Key Differences

Otter, Fischotter is Vulnerable while Kleine Rissoschnecke is Least Concern.

Taxonomic Classification

Rank	Otter, Fischotter	Kleine Rissoschnecke
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Chordata (Chordatiere)	Mollusca (Weichtiere)
Class	Mammalia (Säugetiere)	Gastropoda (Schnecken)
Order	Carnivora (Raubtiere)	Littorinimorpha (Littorinimorpha)
Family	Mustelidae (Weasels & Otters)	Rissoidae
Genus	Lutra (Otters)	Rissoa
Species	Lutra lutra	Rissoa parva

Evolutionary Relationship

Otter, Fischotter and Kleine Rissoschnecke share a common ancestor at the Kingdom level: Animalia. (Tier)

Ansehen Kingdom: Animalia

Conservation Status

Otter, Fischotter

VU — Vulnerable

Trend: Stable →

Kleine Rissoschnecke

LC — Least Concern

Physical Characteristics

Attribute	Otter, Fischotter	Kleine Rissoschnecke
Diet	Carnivore	—
Average Lifespan	10 years	—
Average Length	1.0 m	—
Average Weight	10.0 kg	—

Habitat & Geographic Range

Otter, Fischotter

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.

Kleine Rissoschnecke

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Otter, Fischotter

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.