American Bald Eagle vs

Haliaeetus leucocephalus compared with Chrysochromulina planisquama

Taxonomic Classification

Rank	American Bald Eagle
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Haptophyta (Haptophyta)
Class	Aves (Birds)	Prymnesiophyceae (Prymnesiophyceae)
Order	Accipitriformes (Hawks & Eagles)	Prymnesiales (Prymnesiales)
Family	Accipitridae (Hawks & Eagles)	Chrysochromulinaceae
Genus	Haliaeetus (Sea Eagles)	Chrysochromulina
Species	Haliaeetus leucocephalus	Chrysochromulina planisquama

Conservation Status

American Bald Eagle

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

Attribute	American Bald Eagle
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

American Bald Eagle

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, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

American Bald Eagle

The national bird of the United States and a symbol of American conservation success, bald eagles have a wingspan of up to 2.4 meters and inhabit forests and wetlands near open water across North America. Powerful aerial predators and scavengers, they specialize in fish but also take waterfowl and carrion. Nearly extinct by the 1960s due to DDT poisoning and hunting, the bald eagle recovered dramatically following pesticide bans and the Endangered Species Act.

Chrysochromulina planisquama is a marine haptophyte microalga within the genus Chrysochromulina, class Prymnesiophyceae. The species epithet planisquama, from Latin meaning flat-scaled, refers to the distinctive flat or planar scale morphology of this species, contrasting with the more three-dimensional or cylindrical scales found in many congeners. Scale ultrastructure, examined through scanning and transmission electron microscopy, provides the principal diagnostic characters for separating species within this genus, where most taxa share similar overall cell dimensions and flagellar arrangements. C. planisquama has been documented from Norwegian coastal marine environments, placing it within the well-characterized northern European haptophyte fauna. Norwegian coastal and fjordic waters are cold and productive, supporting diverse phytoplankton communities in which nanoflagellates including Chrysochromulina species regularly constitute a substantial biomass fraction. The species participates in marine primary production and carbon cycling, fixing inorganic carbon through photosynthesis using chlorophylls a and c and fucoxanthin-class carotenoids. Its haptonema — the distinguishing organelle of haptophytes — may function in prey capture or attachment, potentially enabling mixotrophic feeding on bacteria. C. planisquama has not been formally assessed under IUCN criteria and retains a conservation status of Not Evaluated. The description of flat-scaled Chrysochromulina species such as this one contributes to understanding the evolutionary diversity of scale architecture within haptophytes and the relationship between scale form and function in aquatic microenvironments.