Bigelows Rochen vs Eisbär

Rajella bigelowi compared with Ursus maritimus

Key Differences

Bigelows Rochen is Least Concern while Eisbär is Vulnerable.

Taxonomic Classification

Rank	Bigelows Rochen	Eisbär
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Elasmobranchii	Mammalia (Säugetiere)
Order	Rajiformes (Rajiformes)	Carnivora (Raubtiere)
Family	Rajidae	Ursidae (Bears)
Genus	Rajella	Ursus (Bears)
Species	Rajella bigelowi	Ursus maritimus

Evolutionary Relationship

Bigelows Rochen and Eisbär share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Ansehen Phylum: Chordata

Conservation Status

Bigelows Rochen

LC — Least Concern

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bigelows Rochen	Eisbär
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Bigelows Rochen

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Portugal.

Eisbär

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Bigelows Rochen

The Bigelow's ray (Rajella bigelowi) is a species in the genus Rajella. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Eisbär

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.