Atlantic Bluefin Tuna vs Buckelwal

Thunnus thynnus compared with Megaptera novaeangliae

Key Differences

• Atlantic Bluefin Tuna is Least Concern while Buckelwal is Vulnerable.
• Buckelwal is 120.0x heavier than Atlantic Bluefin Tuna.
• Buckelwal lives longer (50 years vs 40 years).

Taxonomic Classification

Rank	Atlantic Bluefin Tuna	Buckelwal
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Actinopterygii (Ray-finned Fish)	Mammalia (Säugetiere)
Order	Perciformes (Barschartige)	Cetacea (Whales & Dolphins)
Family	Scombridae (Tunas & Mackerels)	Balaenopteridae (Rorquals)
Genus	Thunnus (Tunas)	Megaptera (Humpback Whales)
Species	Thunnus thynnus	Megaptera novaeangliae

Evolutionary Relationship

Atlantic Bluefin Tuna and Buckelwal share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Atlantic Bluefin Tuna

LC — Least Concern

Trend: Increasing ↑

Buckelwal

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Atlantic Bluefin Tuna	Buckelwal
Diet	Carnivore	Carnivore
Average Lifespan	40 years	50 years
Average Length	2.5 m	15.0 m
Average Weight	250.0 kg	30.0 t

Habitat & Geographic Range

Atlantic Bluefin Tuna

Habitat

Found across multiple habitat types including temperate coniferous forests, montane grasslands and shrublands, and Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Distributed across Italy, Japan, Morocco, Spain, and United States.

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.

Atlantic Bluefin Tuna

The Atlantic bluefin tuna is one of the largest, fastest, and most valuable fish in the world. A single fish has sold for over $3 million.

Buckelwal

Among the most acrobatic of the great whales, humpback whales are renowned for their complex, haunting songs sung by males during breeding season — some lasting hours and evolving over time. Reaching 16 meters and 30 tonnes, they undertake the longest migrations of any mammal. Found in all oceans, humpbacks feed on krill and small fish using cooperative bubble-net feeding. Populations have largely recovered from historic whaling.