大翅鯨 vs

Megaptera novaeangliae compared with Chrysochromulina rotalis

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 rotalis

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, inhabiting ecosystems characteristic of the region.

Range

Distributed across 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 rotalis is a marine haptophyte alga in the family Prymnesiaceae. Its specific epithet may reference the circular or rotating arrangement of scales observed on the cell surface. Like all Chrysochromulina species, cells are biflagellate and equipped with a haptonema — the coiling, three-membrane appendage unique to haptophytes. Organic scales of species-specific morphology cover the outer cell surface, constituting the primary taxonomic diagnostic feature for species identification within this morphologically similar genus. C. rotalis inhabits the photic zone of coastal marine and shelf waters, particularly in temperate and subarctic seas. The genus as a whole is a dominant component of the haptophyte nanoplankton community in North Atlantic and Arctic waters. Some congeners are capable of sustained bloom formation under conditions of thermal stratification and elevated nutrient availability. Chrysochromulina blooms have ecological consequences for marine food webs and, in the case of toxic species, for fisheries and aquaculture. The IUCN has not assessed the conservation status of C. rotalis, and the species remains Not Evaluated. Its ecology, physiology, and population genetics across oceanic regions are incompletely documented.