Giant Otter vs

Pteronura brasiliensis compared with Nitzschia intermedia

Key Differences

• Giant Otter is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Giant Otter
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Bacillariophyceae (Bacillariophyceae)
Order	Carnivora (Carnivorans)	Bacillariales (Bacillariales)
Family	Mustelidae (Weasels & Otters)	Bacillariaceae
Genus	Pteronura	Nitzschia
Species	Pteronura brasiliensis	Nitzschia intermedia

Conservation Status

Giant Otter

EN — Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, Sweden, and Taiwan.

Nitzschia intermedia is a pennate diatom in the family Bacillariaceae found in freshwater to slightly brackish habitats, where it inhabits both benthic and planktonic niches. Its elongate frustule with a keeled raphe and fine transapical striae is typical of the large genus Nitzschia. It serves as a bioindicator of moderate organic enrichment and nutrient levels in aquatic monitoring programs.