Thunnus
Sign in to saveThunnus is a genus of ocean-dwelling, ray-finned bony fish from the mackerel family, Scombridae. More specifically, Thunnus is one of five genera which make up the tribe Thunnini – a tribe that is collectively known as the tunas. Also called the true tunas or real tunas, Thunnus consists of eight species of tuna (more than half of the overall tribe), divided into two subgenera.
AI overview
Thunnus is a genus of ocean fish in the mackerel family that includes eight species of tuna, making up more than half of all the fish in the tuna tribe. These fish matter because they represent the largest group within the true tunas, a significant category of marine life in ocean ecosystems and human fisheries.
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Taxonomy · GBIF
Yellowfin Tuna
GENUS
- KingdomAnimalia
- PhylumChordata
- OrderPerciformes
- FamilyScombridae
Observations1,114
Groupactinopterygii
via GBIF · iNaturalist · CC0
Wikidata facts
- Instance of
- taxon
- Subclass of
- fish
- Parent taxon
- Scombrinae
Article
6 sectionsContents
- Taxonomy
- Species
- Overfishing
- References
- Further reading
- External links
Thunnus is a genus of ocean-dwelling, ray-finned bony fish from the mackerel family, Scombridae. More specifically, Thunnus is one of five genera which make up the tribe Thunnini – a tribe that is collectively known as the tunas. Also called the true tunas or real tunas, Thunnus consists of eight species of tuna (more than half of the overall tribe), divided into two subgenera.
Their coloring, metallic blue on top and shimmering silver-white on the bottom, helps camouflage them from above and below. Atlantic bluefin tuna, the largest member of this genus, can grow to long and weigh up to . All tunas are extremely strong, muscular swimmers, and the yellowfin tuna is known to reach speeds of up to when pursuing prey. As with all tunas, members of this genus are warm-blooded, which is a rare trait among fish; this enables them to tolerate cold waters and to dive to deeper depths. Bluefin tunas, for example, are found in Newfoundland and Iceland, and also in the tropical waters of the Gulf of Mexico and the Mediterranean Sea, where some individuals go each year to spawn.