Atlantic Stream Crayfish vs Buckelwal

Austropotamobius pallipes compared with Megaptera novaeangliae

Key Differences

• Atlantic Stream Crayfish is Endangered while Buckelwal is Vulnerable.

Taxonomic Classification

Rank	Atlantic Stream Crayfish	Buckelwal
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum	Arthropoda (Artropoda)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Mammalia (mamalia)
Order	Decapoda (Dekapoda)	Cetacea (Whales & Dolphins)
Family	Astacidae	Balaenopteridae (Rorquals)
Genus	Austropotamobius	Megaptera (Humpback Whales)
Species	Austropotamobius pallipes	Megaptera novaeangliae

Evolutionary Relationship

Atlantic Stream Crayfish and Buckelwal share a common ancestor at the Kingdom level: Animalia. (hewan)

Conservation Status

Atlantic Stream Crayfish

EN — Endangered

Buckelwal

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Atlantic Stream Crayfish	Buckelwal
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	15.0 m
Average Weight	—	30.0 t

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.

Buckelwal

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Buckelwal

Among the most acrobatic of the great whales, humpback whales are renowned for their complex, haunting songs sung by males during breeding season — some lasting hours and evolving over time. Reaching 16 meters and 30 tonnes, they undertake the longest migrations of any mammal. Found in all oceans, humpbacks feed on krill and small fish using cooperative bubble-net feeding. Populations have largely recovered from historic whaling.