大翅鯨 vs

Megaptera novaeangliae compared with Chrysochromulina bergenensis

Key Differences

大翅鯨 is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	大翅鯨
Kingdom	Animalia (动物界)	Chromista (色藻界)
Phylum	Chordata (脊索动物门)	Haptophyta (定鞭藻門)
Class	Mammalia (哺乳動物)	Prymnesiophyceae (普林藻纲)
Order	Cetacea (Whales & Dolphins)	Prymnesiales (定鞭金藻目)
Family	Balaenopteridae (Rorquals)	Chrysochromulinaceae
Genus	Megaptera (Humpback Whales)	Chrysochromulina
Species	Megaptera novaeangliae	Chrysochromulina bergenensis

Conservation Status

大翅鯨

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

Attribute	大翅鯨
Diet	Carnivore	—
Average Lifespan	50 years	—
Average Length	15.0 m	—
Average Weight	30.0 t	—

Habitat & Geographic Range

大翅鯨

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

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

Range

Distributed across Brazil, Norway, and Sweden.

大翅鯨

座头鲸是大型鲸类中最具杂技表演性的物种之一，以繁殖季节雄性演唱的复杂而神秘的歌声著称，歌声有时持续数小时并随时间演变。体长可达16米，体重30吨，进行着哺乳动物中最长距离的洄游。分布于所有大洋，通过协作泡泡网捕食磷虾和小鱼。种群数量已从历史捕鲸后大体恢复。

Chrysochromulina bergenensis is a unicellular marine haptophyte named after Bergen, Norway, near where it was first described, reflecting the strong tradition of phycological research centered on the Norwegian coast. It belongs to the genus Chrysochromulina, family Chrysochromulinaceae, class Prymnesiophyceae — a group of golden-brown microalgae distinguished by possession of a haptonema alongside two flagella. The haptonema is a flagella-like appendage unique to haptophytes that functions in prey capture and temporary substrate attachment. C. bergenensis is a nanoplankton species inhabiting coastal marine and occasionally brackish waters, and has been documented from Norwegian and Swedish coastal regions as well as from South American waters including Brazil, indicating a broader distribution than its type locality might suggest. In oligotrophic to mesotrophic marine environments, Chrysochromulina species including C. bergenensis contribute to picoeukaryotic and nanoeukaryotic primary production. The cell surface is ornamented with siliceous or organic scales whose morphology is species-diagnostic. Mixotrophy — the ability to both photosynthesize and ingest particulate food — is common across the genus and likely occurs in this species. C. bergenensis has not been assessed under IUCN Red List criteria and is classified as Not Evaluated. In ecological terms, haptophytes occupy key roles in oceanic carbon export, nutrient cycling, and as prey items for heterotrophic protists and copepods in temperate and boreal Atlantic food webs.