big-eye tuna
Thunnus obesus (Lowe, 1839)
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The bigeye tuna (Thunnus obesus) is a species of true tuna of the genus Thunnus, belonging to the wider mackerel family Scombridae. Bigeye tuna are found in the open waters of all tropical and temperate oceans, but not in the Mediterranean Sea.
Wikipedia contributors, Bigeye tuna; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:56:46.112261+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Thunnus obesus (Lowe, 1839)
- Name authority
- (Lowe, 1839)
- Common name
- big-eye tuna
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Scombriformes
- Family
- Scombridae
- Genus
- Thunnus
- Extinction status
- Not supplied by this source
Source habitat flags: Marine: yes · Freshwater: no · Terrestrial: no. These do not form a complete habitat description.
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- gigaclassActinopterygii
- superclassActinopteri
- classTeleostei
- orderScombriformes
- familyScombridae Rafinesque, 1815
- subfamilyScombrinae Rafinesque, 1815
- genusThunnus South, 1845
- speciesThunnus obesus (Lowe, 1839)
Close classified relatives
These entries share the source’s genus, Thunnus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| blackfin tunaThunnus atlanticus (Lesson, 1831) | ScombridaeChordata | Accepted speciesExtinction status not supplied |
| Northern bluefin tunaThunnus orientalis (Temminck & Schlegel, 1844) | ScombridaeChordata | Accepted speciesExtinction status not supplied |
| Atlantic bluefin tunaThunnus thynnus (Linnaeus, 1758) | ScombridaeChordata | Accepted speciesExtinction status not supplied |
| Oriental bonitoThunnus tonggol (Bleeker, 1851) | ScombridaeChordata | Accepted speciesExtinction status not supplied |
| albacoreThunnus alalunga (Bonnaterre, 1788) | ScombridaeChordata | Accepted speciesExtinction status not supplied |
| Allison tunaThunnus albacares (Bonnaterre, 1788) | ScombridaeChordata | Accepted speciesExtinction status not supplied |
| southern bluefin tunaThunnus maccoyii (Castelnau, 1872) | ScombridaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=127028 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:56P7C. Classification follows source parent identifiers. English common names may vary by region.