vs Oso Polar

Chrysochromulina strobilus compared with Ursus maritimus

Key Differences

is Not Evaluated while Oso Polar is Vulnerable.

Taxonomic Classification

Rank		Oso Polar
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Haptophyta (Haptophyta)	Chordata (cordados)
Class	Prymnesiophyceae (Prymnesiophyceae)	Mammalia (mamíferos)
Order	Prymnesiales (Prymnesiales)	Carnivora (carnívoros)
Family	Chrysochromulinaceae	Ursidae (Bears)
Genus	Chrysochromulina	Ursus (Bears)
Species	Chrysochromulina strobilus	Ursus maritimus

Conservation Status

NE — Not Evaluated

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute		Oso Polar
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Oso Polar

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Chrysochromulina strobilus is a marine haptophyte microalga in the family Prymnesiaceae. The specific epithet strobilus (Greek/Latin: pine cone or spinning top) likely references the conical arrangement of scales on the cell surface or the overall cell shape observed under microscopy. Like all members of the genus, C. strobilus is biflagellate and bears a haptonema, the defining appendage of the class Haptophyta. The organic scales covering the cell exterior are of species-specific morphology, serving as the primary character for species-level identification. C. strobilus inhabits marine photic-zone environments, with records from northern European and Scandinavian coastal waters. Chrysochromulina species collectively constitute a significant fraction of marine nanoplankton biomass and contribute to carbon fixation, dissolved organic matter production, and the microbial food web. Some congeners produce dimethylsulfoniopropionate and haemolytic toxins relevant to sulfur cycling and harmful algal events, respectively. The IUCN has not assessed the conservation status of C. strobilus, and it is classified as Not Evaluated. Its global distribution and population structure remain subjects of ongoing environmental survey and molecular studies.

Oso Polar

El mayor carnivoro terrestre de la Tierra, el oso polar puede superar los 700 kg y se encuentra en el hielo marino del Artico, desde Canada hasta Rusia. Es un mamifero marino altamente especializado que depende del hielo marino para cazar focas anilladas y barbadas. Excelente nadador capaz de cubrir grandes distancias en agua abierta. Clasificado como Vulnerable, sus poblaciones soportan una presion severa por la rapida perdida de hielo marino artico debida al cambio climatico.