Commerson-Delfin vs Kleine Bergente

Cephalorhynchus commersonii compared with Aythya affinis

Taxonomic Classification

Rank	Commerson-Delfin	Kleine Bergente
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Aves (Vögel)
Order	Cetacea (Whales & Dolphins)	Anseriformes (Gänsevögel)
Family	Delphinidae (Oceanic Dolphins)	Anatidae
Genus	Cephalorhynchus	Aythya
Species	Cephalorhynchus commersonii	Aythya affinis

Evolutionary Relationship

Commerson-Delfin and Kleine Bergente share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Commerson-Delfin

LC — Least Concern

Kleine Bergente

LC — Least Concern

Physical Characteristics

Attribute	Commerson-Delfin	Kleine Bergente
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Commerson-Delfin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Kleine Bergente

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Commerson-Delfin

<em>Cephalorhynchus commersonii</em>, commonly known as Commerson's Dolphin, is a small cetacean in the family Delphinidae. This species is classified as Least Concern on the IUCN Red List and is notable for its striking black-and-white coloration, which makes it one of the most visually distinctive dolphin species. Commerson's Dolphins typically inhabit coastal and nearshore marine environments of the Southern Hemisphere, particularly around the Falkland Islands, the southern tip of South America, and a geographically isolated population near the Kerguelen Islands in the Indian Ocean. These dolphins are highly social animals, often observed in small groups engaging in acrobatic behaviors near the surface. They typically feed on fish, squid, and crustaceans, often hunting cooperatively in shallow waters and kelp beds. Their average lifespan is approximately 18 years, and they are known for their fast, energetic swimming. Commerson's Dolphins are sometimes caught as bycatch in fishing nets, posing a localized conservation concern despite their overall Least Concern status.

Kleine Bergente

Lesser Scaup (Aythya affinis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.