Hwan-do-sang-ǒ vs

Alopias pelagicus compared with Chrysosphaerella triangulata

Key Differences

• Hwan-do-sang-ǒ is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Hwan-do-sang-ǒ
Kingdom	Animalia (동물)	Chromista (크로미스타)
Phylum	Chordata (척삭동물)	Ochrophyta (대롱편모조식물)
Class	Chondrichthyes (연골어류)	Chrysophyceae (황조류)
Order	Lamniformes (악상어목)	Ochromonadales (Ochromonadales)
Family	Alopiidae	Paraphysomonadaceae
Genus	Alopias	Chrysosphaerella
Species	Alopias pelagicus	Chrysosphaerella triangulata

Conservation Status

Hwan-do-sang-ǒ

EN — Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Hwan-do-sang-ǒ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hwan-do-sang-ǒ

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. 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.

Hwan-do-sang-ǒ

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Chrysosphaerella triangulata is a colonial freshwater chrysophyte microalga in the genus Chrysosphaerella, class Chrysophyceae, order Chromulinales. Chrysosphaerella species form spherical free-floating colonies of golden-brown cells embedded in a gelatinous matrix, with individual cells bearing elongated siliceous scales that project outward from the colony surface. The species epithet triangulata — triangular — refers to the triangular cross-section or profile of the siliceous scales on the cell surface, which distinguishes this species from C. annulata, which has annular ring structures on its scales, and from other congeners with different scale geometries. Siliceous scale morphology examined under scanning electron microscopy is the primary diagnostic character for Chrysosphaerella species identification. C. triangulata has been recorded from Norwegian and Swedish freshwater habitats, part of the documented chrysophyte flora of boreal and subarctic Scandinavian lakes. These environments are characterized by cold, clear, nutrient-poor water and seasonal ice cover, creating conditions favorable for chrysophyte diversity including colonial forms like Chrysosphaerella. The colonies inhabit the photic zone of the water column, photosynthesizing with chlorophylls a and c and carotenoid accessory pigments. Chrysosphaerella scales deposited in lake sediments serve as paleolimnological indicators. C. triangulata has not been formally evaluated under IUCN criteria and is listed as Not Evaluated. It contributes to documentation of the rich chrysophyte diversity in Scandinavian freshwater systems.