Blue Dolphin vs

Stenella coeruleoalba compared with Nostoc sphaericum

Key Differences

• Blue Dolphin is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Blue Dolphin
Kingdom	Animalia (Animals)	Bacteria (Bacteria)
Phylum	Chordata (Chordates)	Cyanobacteria (Cyanobacteria)
Class	Mammalia (Mammals)	Cyanobacteriia
Order	Cetacea (Whales & Dolphins)	Cyanobacteriales
Family	Delphinidae (Oceanic Dolphins)	Nostocaceae
Genus	Stenella	Nostoc
Species	Stenella coeruleoalba	Nostoc sphaericum

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, inhabiting ecosystems characteristic of the region.

Range

Distributed across 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.

Nostoc sphaericum is a colonial, nitrogen-fixing cyanobacterium in the family Nostocaceae, forming gelatinous spherical or irregular colonies visible to the naked eye. It inhabits moist soils, rocks, and freshwater environments, often forming conspicuous blobs after rainfall.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden