Blue Dolphin vs

Stenella coeruleoalba compared with Tryblionella gracilis

Key Differences

• Blue Dolphin is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Blue Dolphin
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Bacillariophyceae (Bacillariophyceae)
Order	Cetacea (Whales & Dolphins)	Bacillariales (Bacillariales)
Family	Delphinidae (Oceanic Dolphins)	Bacillariaceae
Genus	Stenella	Tryblionella
Species	Stenella coeruleoalba	Tryblionella gracilis

Conservation Status

Blue Dolphin

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Blue Dolphin
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).

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

Blue Dolphin

Blue Dolphin (Stenella coeruleoalba) 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.

Tryblionella gracilis is a slender, elongated pennate diatom with a gracile cell outline and a fibulate raphe typical of the genus. It inhabits brackish, saline, and coastal marine benthic environments across temperate and tropical regions. This photosynthetic diatom is associated with brackish water and saline freshwater environments.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden