Atlantic Stream Crayfish vs Brook-Side Alder

Austropotamobius pallipes compared with Alnus serrulata

Key Differences

• Atlantic Stream Crayfish is Endangered while Brook-Side Alder is Least Concern.

Taxonomic Classification

Rank	Atlantic Stream Crayfish	Brook-Side Alder
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Malacostraca (Crustaceans)	Magnoliopsida (Dicots)
Order	Decapoda (Decapoda)	Fagales (Beeches & Oaks)
Family	Astacidae	Betulaceae
Genus	Austropotamobius	Alnus
Species	Austropotamobius pallipes	Alnus serrulata

Conservation Status

Atlantic Stream Crayfish

EN — Endangered

Brook-Side Alder

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Stream Crayfish	Brook-Side Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Stream Crayfish

Habitat

Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.

Range

Distributed across Ireland and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brook-Side Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada and United States.

Atlantic Stream Crayfish

The Atlantic Stream Crayfish (Austropotamobius pallipes) is a species in the genus Austropotamobius. It is currently classified as Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.

Brook-Side Alder

The Brook-Side Alder (Alnus serrulata) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.