Brook Alder vs Least Crayfish

Alnus maritima compared with Cambarellus diminutus

Key Differences

• Brook Alder is Endangered while Least Crayfish is Data Deficient.

Taxonomic Classification

Rank	Brook Alder	Least Crayfish
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Malacostraca (Crustaceans)
Order	Fagales (Beeches & Oaks)	Decapoda (Decapoda)
Family	Betulaceae	Cambaridae
Genus	Alnus	Cambarellus
Species	Alnus maritima	Cambarellus diminutus

Conservation Status

Brook Alder

EN — Endangered

Least Crayfish

DD — Data Deficient

Physical Characteristics

Attribute	Brook Alder	Least Crayfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Alder

Habitat

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

Range

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

Least Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Norway.

Brook Alder

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