Cá Ó không gai vs

Aetomylaeus nichofii compared with Chrysosphaerella coronacircumspina

Key Differences

Cá Ó không gai is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Cá Ó không gai
Kingdom	Animalia (động vật)	Chromista (Chromista)
Phylum	Chordata (động vật có dây sống)	Ochrophyta (Ochrophyta)
Class	Elasmobranchii	Chrysophyceae (Chrysophyceae)
Order	Myliobatiformes (Bộ Cá đuối ó)	Ochromonadales (Ochromonadales)
Family	Myliobatidae	Paraphysomonadaceae
Genus	Aetomylaeus	Chrysosphaerella
Species	Aetomylaeus nichofii	Chrysosphaerella coronacircumspina

Conservation Status

Cá Ó không gai

VU — Vulnerable

NE — Not Evaluated

Physical Characteristics

Attribute	Cá Ó không gai
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cá Ó không gai

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Vulnerable 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.

Cá Ó không gai

The Banded eagle ray (Aetomylaeus nichofii) is a species in the genus Aetomylaeus. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia, 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.