baleine bleue vs

Balaenoptera musculus compared with Halostella salina

Key Differences

• baleine bleue is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	baleine bleue
Kingdom	Animalia (animal)	Archaea (Archaea)
Phylum	Chordata (Chordates)	Halobacteriota (Halobacteriota)
Class	Mammalia (mammifères)	Halobacteria (Halobacteria)
Order	Cetacea (Whales & Dolphins)	Halobacteriales (Halobacteriales)
Family	Balaenopteridae (Rorquals)	QS-9-68-17
Genus	Balaenoptera (Rorquals)	Halostella
Species	Balaenoptera musculus	Halostella salina

Conservation Status

baleine bleue

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

Attribute	baleine bleue
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic Range

baleine bleue

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

baleine bleue

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.

Halostella salina is an extremely halophilic archaeon forming irregular cocci in hypersaline environments. It inhabits salt lakes, saline springs, and solar evaporation ponds where salt concentrations approach saturation. This aerobic, chemoheterotrophic archaeon requires extremely high salt concentrations for growth and obtains energy from organic compounds in its brine habitat.