ハクトウワシ vs

Haliaeetus leucocephalus compared with Chrysochromulina apheles

Taxonomic Classification

Rank	ハクトウワシ
Kingdom	Animalia (動物)	Chromista (クロミスタ)
Phylum	Chordata (脊索動物)	Haptophyta (ハプト藻)
Class	Aves (鳥類)	Prymnesiophyceae (Prymnesiophyceae)
Order	Accipitriformes (タカ目)	Prymnesiales (Prymnesiales)
Family	Accipitridae (Hawks & Eagles)	Chrysochromulinaceae
Genus	Haliaeetus (Sea Eagles)	Chrysochromulina
Species	Haliaeetus leucocephalus	Chrysochromulina apheles

Conservation Status

ハクトウワシ

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

Attribute	ハクトウワシ
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

ハクトウワシ

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 10 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (8 countries), North America (United States), and South America (Ecuador).

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

ハクトウワシ

アメリカの国鳥であり保全の成功を象徴するハクトウワシは翼開長が最大2.4 mに達し、北米全域の水辺近くの森林や湿地に生息する。強力な空中捕食者兼腐肉食者で魚を主食とするが、水鳥や腐肉も捕食する。DDT汚染と狩猟によって1960年代にほぼ絶滅に瀕したが、農薬の使用禁止と絶滅危惧種法の施行により劇的に回復した。

Chrysochromulina apheles is a marine haptophyte microalga in the genus Chrysochromulina, family Chrysochromulinaceae, class Prymnesiophyceae. Members of this genus are distinguished by their coiling haptonema, two flagella of approximately equal length, and a covering of organic scales on the cell surface — features used extensively in species identification through electron microscopy. C. apheles inhabits coastal marine environments and has been recorded from Norwegian and Swedish waters, regions where intensive phycological surveys during the late twentieth century yielded numerous new haptophyte species descriptions. These subarctic and temperate Atlantic coastal waters sustain diverse nanoplankton communities in which Chrysochromulina species are frequently abundant components. The epithet apheles derives from Greek, referencing a morphological characteristic of the cell or scale structure. As a phytoplankton organism, C. apheles participates in primary production, converting inorganic carbon to organic matter through photosynthesis, and may also engage in phagotrophy of bacterial cells. Some Chrysochromulina species produce polyunsaturated fatty acids and occasionally bioactive compounds. The taxon has not been evaluated under IUCN criteria and carries a conservation status of Not Evaluated, reflecting the general challenge of assessing extinction risk in free-living marine microalgae whose populations are cosmopolitan and difficult to census. Understanding the ecology and distribution of species like C. apheles contributes to knowledge of marine microbial diversity and the functioning of pelagic food webs in northern Atlantic ecosystems.