vs

Surirella biseriata compared with Surirella brebissonii

Taxonomic Classification

Rank
Kingdom same	Chromista (Chromista)	Chromista (Chromista)
Phylum same	Ochrophyta (Ochrophyta)	Ochrophyta (Ochrophyta)
Class same	Bacillariophyceae (Bacillariophyceae)	Bacillariophyceae (Bacillariophyceae)
Order same	Surirellales (Surirellales)	Surirellales (Surirellales)
Family same	Surirellaceae	Surirellaceae
Genus same	Surirella	Surirella
Species	Surirella biseriata	Surirella brebissonii

Evolutionary Relationship

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

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, Portugal, Sweden, and Taiwan.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden.

Surirella biseriata is a large, boat-shaped freshwater diatom with two rows of fibulae forming a distinctive pattern along both sides of the valve. It inhabits benthic zones of clean to moderately enriched freshwater lakes and rivers across temperate regions. This photosynthetic diatom contributes to benthic algal communities and organic matter production.

Surirella brebissonii is a freshwater diatom with a distinctly twisted or sigmoid cell shape covered by a siliceous frustule with a raphid system. It inhabits rivers, lakes, and nutrient-enriched freshwater environments across temperate regions. This photosynthetic microalga forms part of the benthic phytoplankton community and serves as a food source for small invertebrates.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden