Buckelwal vs

Megaptera novaeangliae compared with Chrysochromulina elegans

Key Differences

Buckelwal is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Buckelwal
Kingdom	Animalia (動物)	Chromista (クロミスタ)
Phylum	Chordata (脊索動物)	Haptophyta (ハプト藻)
Class	Mammalia (哺乳類)	Prymnesiophyceae (Prymnesiophyceae)
Order	Cetacea (Whales & Dolphins)	Prymnesiales (Prymnesiales)
Family	Balaenopteridae (Rorquals)	Chrysochromulinaceae
Genus	Megaptera (Humpback Whales)	Chrysochromulina
Species	Megaptera novaeangliae	Chrysochromulina elegans

Conservation Status

Buckelwal

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

Buckelwal

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.

Buckelwal

大型クジラの中で最も曲芸的なクジラのひとつであるザトウクジラは、繁殖期にオスが歌う複雑で神秘的な歌で知られており、数時間にわたって続き時間をかけて変化していきます。体長16m、体重30トンに達し、哺乳類の中で最長の回遊を行います。全海洋に分布し、協調的なバブルネット採餌でオキアミや小魚を捕食します。歴史的な捕鯨後の個体数はおおむね回復しています。

Chrysochromulina elegans is a species of golden-brown haptophyte microalga in the genus Chrysochromulina, family Chrysochromulinaceae, class Prymnesiophyceae. The epithet elegans — meaning elegant or graceful — refers to the refined morphology of the cell and its surface ornamentation, likely reflecting the delicate arrangement of organic scales characteristic of this species. Chrysochromulina cells are typically spherical to ovoid, with two equal flagella and a coiling haptonema that is longer than the flagella in many species, giving the cell a distinctive triaxial appendage arrangement. C. elegans has been recorded from Norwegian coastal waters, consistent with the historical pattern of Chrysochromulina species discovery in Scandinavian phycological surveys. Norwegian coastal and fjordic environments provide cold, productive waters where haptophyte diversity is high, particularly during spring blooms and summer thermal stratification. The species is a phytoplankton organism functioning as a primary producer and potential prey item for heterotrophic protists, copepod nauplii, and other zooplankton. Chrysochromulina species collectively contribute to oceanic biogeochemical cycles through carbon fixation, dimethylsulfoniopropionate production, and participation in the microbial loop. C. elegans has not been assessed under IUCN criteria and is listed as Not Evaluated. Improved molecular phylogenetic methods continue to refine the taxonomy of the genus, and future studies may clarify the global distribution and ecological roles of C. elegans relative to its congeners.