vs Polar bear

Chrysochromulina lanceolata compared with Ursus maritimus

Key Differences

is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Chromista (크로미스타)	Animalia (동물)
Phylum	Haptophyta (착편모조류)	Chordata (척삭동물)
Class	Prymnesiophyceae (프림네시움강)	Mammalia (포유류)
Order	Prymnesiales (프림네시움목)	Carnivora (식육목)
Family	Chrysochromulinaceae	Ursidae (Bears)
Genus	Chrysochromulina	Ursus (Bears)
Species	Chrysochromulina lanceolata	Ursus maritimus

Conservation Status

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute		Polar bear
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.

Polar bear

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 lanceolata is a unicellular haptophyte microalga within the genus Chrysochromulina, family Chrysochromulinaceae, class Prymnesiophyceae. The epithet lanceolata — lance-shaped — describes the form of a scale or haptonema component that characterizes this species, a common naming convention in a genus where species are principally separated by electron microscopy of surface structures. C. lanceolata has been recorded from Norwegian coastal marine environments and additionally from Brazilian waters, suggesting an Atlantic distribution spanning both temperate and tropical zones. Such broad distributions are not uncommon in marine nanoplankton, which can be dispersed across oceanic distances by currents and physical mixing, though molecular evidence sometimes reveals cryptic species differences between geographically distant populations. The species inhabits the photic zone of coastal to open-ocean marine systems, where it functions as a primary producer contributing to nanoplankton biomass. Like other haptophytes, C. lanceolata likely possesses the ability for mixotrophic nutrition, combining photosynthesis with phagocytic uptake of bacteria. The genus Chrysochromulina is ecologically significant: collectively its species contribute substantially to dissolved organic carbon production, dimethylsulfoniopropionate synthesis — a precursor to the climatically active gas dimethylsulfide — and carbon export in the biological pump. C. lanceolata has not been evaluated under IUCN criteria and is listed as Not Evaluated. The species represents one of many Chrysochromulina taxa requiring further molecular characterization to establish global biogeographic patterns.

Polar bear

지구상에서 가장 큰 육상 육식동물인 북극곰은 700kg을 넘을 수 있으며 캐나다에서 러시아까지 북극 해빙 전역에 분포한다. 고리 물범과 수염 물범을 사냥하기 위해 해빙에 의존하는 고도로 특수화된 해양 포유류이다. 광활한 거리를 헤엄쳐 다닐 수 있는 뛰어난 수영 실력을 가지고 있다. 취약종으로 등재되어 있으며, 기후 변화로 인한 급격한 북극 해빙 감소로 심각한 압력을 받고 있다.