Brook Floater vs

Alasmidonta varicosa compared with Gomphonema utae

Key Differences

• Brook Floater is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Mollusca (Mollusks)	Ochrophyta (Ochrophyta)
Class	Bivalvia (Bivalvia)	Bacillariophyceae (Bacillariophyceae)
Order	Unionida (Unionida)	Cymbellales (Cymbellales)
Family	Unionidae	Gomphonemataceae
Genus	Alasmidonta	Gomphonema
Species	Alasmidonta varicosa	Gomphonema utae

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.

Gomphonema utae is a freshwater pennate diatom in the family Gomphonemataceae with a characteristic asymmetric, clavate frustule that tapers toward the foot-pole where it attaches via a mucilage pad or stalk. It is found in epilithic and epiphytic communities in streams and lakes across temperate regions. The species contributes to biofilm formation and serves as a bioindicator of water quality.