vs

Nitzschia angularis compared with Nitzschia graciliformis

Taxonomic Classification

Rank
Kingdom same	Chromista (Chromista)	Chromista (Chromista)
Phylum same	Ochrophyta (Ochrophyta)	Ochrophyta (Ochrophyta)
Class same	Bacillariophyceae (Bacillariophyceae)	Bacillariophyceae (Bacillariophyceae)
Order same	Bacillariales (Bacillariales)	Bacillariales (Bacillariales)
Family same	Bacillariaceae	Bacillariaceae
Genus same	Nitzschia	Nitzschia
Species	Nitzschia angularis	Nitzschia graciliformis

Evolutionary Relationship

and share a common ancestor at the Genus level: Nitzschia.

Conservation Status

NE — Not Evaluated

NE — Not Evaluated

Physical Characteristics

Attribute
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

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

Range

Distributed across Brazil, Norway, Sweden, and Taiwan.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Nitzschia angularis is an elongated, pennate freshwater diatom with angular poles and a distinctive raphe positioned along the keel of the frustule. It inhabits eutrophic to mesotrophic freshwater environments including rivers, ponds, and nutrient-enriched lakes. This photosynthetic diatom is associated with moderately enriched freshwater conditions.

Nitzschia graciliformis is a slender, needle-shaped pennate diatom found in freshwater and brackish aquatic habitats including streams, lakes, and coastal waters worldwide. Its elongated siliceous frustule bears a distinctive raphe system along one side, enabling gliding motility. This species contributes to aquatic primary production and is used in freshwater biomonitoring due to its sensitivity to nutrient levels.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden