Azure Hawker vs

Aeshna caerulea compared with Chrysosphaerella triangulata

Key Differences

Azure Hawker is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Azure Hawker
Kingdom	Animalia (동물)	Chromista (크로미스타)
Phylum	Arthropoda (절지동물)	Ochrophyta (대롱편모조식물)
Class	Insecta (곤충)	Chrysophyceae (황조류)
Order	Odonata (잠자리)	Ochromonadales (Ochromonadales)
Family	Aeshnidae	Paraphysomonadaceae
Genus	Aeshna	Chrysosphaerella
Species	Aeshna caerulea	Chrysosphaerella triangulata

Conservation Status

Azure Hawker

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Azure Hawker
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Azure Hawker

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Norway and Sweden.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Azure Hawker

The Azure Hawker (Aeshna caerulea) is a species in the genus Aeshna. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.