白头海雕 vs

Haliaeetus leucocephalus compared with Chrysochromulina camella

Taxonomic Classification

Rank	白头海雕
Kingdom	Animalia (动物界)	Chromista (色藻界)
Phylum	Chordata (脊索动物门)	Haptophyta (定鞭藻門)
Class	Aves (鳥綱)	Prymnesiophyceae (普林藻纲)
Order	Accipitriformes (鷹形目)	Prymnesiales (定鞭金藻目)
Family	Accipitridae (Hawks & Eagles)	Chrysochromulinaceae
Genus	Haliaeetus (Sea Eagles)	Chrysochromulina
Species	Haliaeetus leucocephalus	Chrysochromulina camella

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

Attribute	白头海雕
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

白头海雕

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.

白头海雕

白头海雕是美国国鸟，也是美国生态保护史上的成功案例，曾因滴滴涕（DDT）的广泛使用而濒临灭绝，经保护措施的实施后种群数量已显著恢复。该物种在IUCN红色名录中被评估为无危（LC），以白色头颈和尾羽与深棕色体羽形成的鲜明对比为主要识别特征。它们主要以鱼类为食，也会捕食哺乳动物和腐肉。

Chrysochromulina camella is a marine haptophyte microalga belonging to the genus Chrysochromulina within the family Prymnesiaceae. Cells are spherical to ovoid, biflagellate, and equipped with a haptonema of variable length used in capturing bacterial prey. The cell surface is ornamented with a layer of unmineralized organic scales whose shape and arrangement constitute important diagnostic features at the species level. C. camella is a component of the marine nanoplankton assemblage, occupying photic-zone waters where it participates in primary production and the microbial loop. The genus has been most thoroughly studied in the coastal waters of Scandinavia, where numerous species were first described by the Norwegian phycologist Parke and others during the mid-twentieth century. Some Chrysochromulina species form episodic blooms that can release ichthyotoxic compounds, causing mortality in fish farms and wild fish populations. The ecological and taxonomic status of C. camella has not been formally evaluated by the IUCN, and the species is classified as Not Evaluated. Ocean acidification and warming represent potential long-term stressors for haptophyte communities globally.