Brook Floater vs

Alasmidonta varicosa compared with Eunotia elegans

Key Differences

• Brook Floater is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater
Kingdom	Animalia (animal)	Chromista (Chromista)
Phylum	Mollusca (mollusques)	Ochrophyta (Ochrophyta)
Class	Bivalvia (Bivalvia)	Bacillariophyceae (Bacillariophyceae)
Order	Unionida (Unionoida)	Eunotiales (Eunotiales)
Family	Unionidae	Eunotiaceae
Genus	Alasmidonta	Eunotia
Species	Alasmidonta varicosa	Eunotia elegans

Conservation Status

Brook Floater

VU — Vulnerable

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Eunotia elegans is a pennate diatom in the family Eunotiaceae, distinguished by its arcuate (curved) frustule with a short, marginal raphe at each pole. It inhabits acidic, soft-water lakes, peat bogs, and oligotrophic freshwater environments where it contributes to periphyton communities. The genus Eunotia is considered a useful indicator of water acidity and low ionic conductivity.