vs Large Oecomys

Chrysosphaerella longispina compared with Oecomys superans

Key Differences

• is Not Evaluated while Large Oecomys is Least Concern.

Taxonomic Classification

Rank		Large Oecomys
Kingdom	Chromista (Chromista)	Animalia (động vật)
Phylum	Ochrophyta (Ochrophyta)	Chordata (động vật có dây sống)
Class	Chrysophyceae (Chrysophyceae)	Mammalia (lớp Thú)
Order	Ochromonadales (Ochromonadales)	Rodentia (Bộ Gặm nhấm)
Family	Paraphysomonadaceae	Cricetidae
Genus	Chrysosphaerella	Oecomys
Species	Chrysosphaerella longispina	Oecomys superans

Conservation Status

NE — Not Evaluated

Large Oecomys

LC — Least Concern

Physical Characteristics

Attribute		Large Oecomys
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Large Oecomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Chrysosphaerella longispina is a colonial chrysophyte alga in the genus Chrysosphaerella, notable for the long silica spines (longispina: Latin, long spine) that project from each cell in the colony. The genus is characterized by spherical or discoid colonies of photosynthetic cells that each secrete siliceous scales and elongated spine-like appendages, making Chrysosphaerella colonies distinctively bristled and visible under light microscopy. The long spines of C. longispina likely serve as anti-predation structures that make the colonies more difficult for zooplankton to ingest. C. longispina is found in cold, oligotrophic freshwater lakes, particularly in Scandinavia, where comprehensive chrysophyte surveys have documented its presence. Chrysosphaerella colonies contribute to freshwater primary production and the cycling of biogenic silica, which upon cell dissolution is deposited in lake sediments as microscopically identifiable remains. These silica structures are widely used by paleolimnologists to reconstruct past changes in lake water chemistry, thermal stratification, and climate. The conservation status of C. longispina has not been assessed by the IUCN; the species is listed as Not Evaluated.