Big Finner vs Centric diatom

Balaenoptera physalus compared with Skeletonema subsalsum

Key Differences

Big Finner is Endangered while Centric diatom is Not Evaluated.

Taxonomic Classification

Rank	Big Finner	Centric diatom
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Bacillariophyceae (Bacillariophyceae)
Order	Cetacea (Whales & Dolphins)	Thalassiosirales (Thalassiosirales)
Family	Balaenopteridae (Rorquals)	Skeletonemaceae
Genus	Balaenoptera (Rorquals)	Skeletonema
Species	Balaenoptera physalus	Skeletonema subsalsum

Conservation Status

Big Finner

EN — Endangered

Centric diatom

NE — Not Evaluated

Physical Characteristics

Attribute	Big Finner	Centric diatom
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Finner

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Centric diatom

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

Big Finner

Big Finner (Balaenoptera physalus) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Centric diatom

The Centric Diatom (Skeletonema subsalsum) is a species in the genus Skeletonema. Found across Europe (7 countries) and North America (United States).