Blue Dolphin vs カワアジサシ

Stenella coeruleoalba compared with Sterna aurantia

Key Differences

• Blue Dolphin is Least Concern while カワアジサシ is Vulnerable.

Taxonomic Classification

Rank	Blue Dolphin	カワアジサシ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Aves (鳥類)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (チドリ目)
Family	Delphinidae (Oceanic Dolphins)	Laridae
Genus	Stenella	Sterna
Species	Stenella coeruleoalba	Sterna aurantia

Evolutionary Relationship

Blue Dolphin and カワアジサシ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Blue Dolphin

LC — Least Concern

カワアジサシ

VU — Vulnerable

Physical Characteristics

Attribute	Blue Dolphin	カワアジサシ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela).

カワアジサシ

Habitat

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

Range

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

Blue Dolphin

スジイルカ（Stenella coeruleoalba）はIUCNレッドリストで軽度懸念（LC）に分類されています。分布域全体で広く豊富に生息し、個体数は安定しており、即座の保全上の懸念はありません。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway