Andersson's arctic moss vs

Arctoa anderssonii compared with Chrysosphaerella coronacircumspina

Key Differences

Andersson's arctic moss is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Andersson's arctic moss
Kingdom	Plantae (planta)	Chromista (Chromista)
Phylum	Bryophyta	Ochrophyta (Ochrophyta)
Class	Bryopsida (Bryopsida)	Chrysophyceae (Chrysophyceae)
Order	Dicranales (Dicranales)	Ochromonadales (Ochromonadales)
Family	Rhabdoweisiaceae	Paraphysomonadaceae
Genus	Arctoa	Chrysosphaerella
Species	Arctoa anderssonii	Chrysosphaerella coronacircumspina

Conservation Status

Andersson's arctic moss

EN — Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Andersson's arctic moss
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Andersson's arctic moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Andersson's arctic moss

The Andersson's arctic moss (Arctoa anderssonii) is a species in the genus Arctoa. It is currently classified as Endangered on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Chrysosphaerella coronacircumspina is a colonial chrysophyte alga in the genus Chrysosphaerella, family Chromulinaceae. Its compound specific epithet corona-circumspina (Latin: crown of surrounding spines) references the distinctive arrangement of silica spines forming a ring or crown around each cell in the colony. Each cell in a Chrysosphaerella colony bears both flat siliceous scales and long, projecting spines, with the spine arrangement being species-specific and taxonomically diagnostic. The colonial organization is held together by organic matrix material, creating a spherical or semi-spherical aggregate visible under light microscopy. C. coronacircumspina is found in freshwater phytoplankton communities in Scandinavia, consistent with the broader distribution of Chrysosphaerella in cold-temperate and subarctic lakes. The silica structures produced by Chrysosphaerella cells are deposited in lake sediments upon cell death, creating millennial-scale paleoenvironmental archives. Chrysophytes are sensitive to lake acidification, nutrients, and temperature, making them useful climate proxies in paleolimnological research. The species has not been assessed for conservation status by the IUCN and is listed as Not Evaluated.