Yellowfin tunaThe yellowfin tuna (Thunnus albacares) is a species of tuna found in pelagic waters of tropical and subtropical oceans worldwide. Yellowfin is often marketed as ahi, from the Hawaiianʻahi, a name also used there for the closely related bigeye tuna (Thunnus obesus).
Atlantic bluefin tunaThe Atlantic bluefin tuna (Thunnus thynnus) is a species of tuna in the family Scombridae. It is variously known as the northern bluefin tuna (mainly when including Pacific bluefin as a subspecies), giant bluefin tuna (for individuals exceeding 150 kg [330 lb]), and formerly as the tunny. Atlantic bluefins are native to both the western and eastern Atlantic Ocean, as well as the Mediterranean Sea. They have become regionally extinct in the Black Sea.
TunaTuna (pl.: tunas or tuna) are saltwater fish belonging to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family. The Thunnini comprise 15 species across five genera, the sizes of which vary from the bullet tuna (max length: 50 cm or 1.6 ft, weight: 1.8 kg or 4 lb) to the Atlantic bluefin tuna (max length: 4.6 m or 15 ft, weight: 684 kg or 1,508 lb), which averages 2 m (6.6 ft) and is believed to live up to 50 years.
ScombridaeScombridae is a family of marineray-finned fish that consists of 51 extantspecies in 15 genera and two subfamilies, many of which are the most important and familiar commercial food fishes. All but one species are in the subfamily Scombrinae, which include mackerel, tuna and bonito; while the only exception is the butterfly kingfish, which is the sole member of subfamily Gasterochismatinae.
SpeciesBasic unit of taxonomic classification, below genusThe hierarchy of biological classification's eight major taxonomic ranks. A genus contains one or more species. Minor intermediate ranks are not shown.A species (pl. species) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity.GenusGenus (; pl.: genera) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. E.g. Panthera leo (lion) and Panthera onca (jaguar) are two species within the genus Panthera.
Warm-bloodedWarm-blooded is a term referring to animalspecies whose bodies maintain a temperature higher than that of their environment. In particular, homeothermic species (including birds and mammals) maintain a stable body temperature by regulating metabolic processes. Other species have various degrees of thermoregulation.
SubgenusIn biology, a subgenus (pl.subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic name and the specific epithet: e.g. the tiger cowry of the Indo-Pacific, Cypraea (Cypraea) tigrisLinnaeus, which belongs to the subgenus Cypraea of the genus Cypraea.
OsteichthyesOsteichthyes ( ; from Ancient Greek (ostéon)'bone' and (ikhthús)'fish'), also known as osteichthyans or commonly referred to as the bony fish, is a diverseclade of vertebrateanimals that have endoskeletons primarily composed of bone tissue, encompassing both the conventional bony fishes and, in a cladistic sense, all tetrapods, including mammals and reptiles.
Tribe (taxonomy)In biology, a tribe is a taxonomic rank above genus, but below family and subfamily. It is sometimes subdivided into subtribes. By convention, all taxa ranked above species are capitalized, including both tribe and subtribe. In zoology, the standard ending for the name of a zoological tribe is "-ini". Examples include the tribes Caprini (goat-antelopes), Hominini (hominins), Bombini (bumblebees), and Thunnini (tunas).
ActinopterygiiActinopterygii ( ; from Ancient Greek ἀκτίς (aktís) 'ray, beam' and πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that constitutes nearly 99% of the over 30,000 living species of fish. The vast majority of extant actinopterygian species are teleosts, and by species count they dominate the subphylum Vertebrata, comprising over 50% of all living vertebrates.
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