Brook Floater vs Surf Scoter

Alasmidonta varicosa compared with Melanitta perspicillata

Key Differences

• Brook Floater is Vulnerable while Surf Scoter is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Surf Scoter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Aves (Birds)
Order	Unionida (Unionida)	Anseriformes (Anseriformes)
Family	Unionidae	Anatidae
Genus	Alasmidonta	Melanitta
Species	Alasmidonta varicosa	Melanitta perspicillata

Evolutionary Relationship

Brook Floater and Surf Scoter share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Surf Scoter

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Surf Scoter
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.

Surf Scoter

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and North America (United States).

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States