? Bigeye Tuna
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Perciformes Family: Scombridae Genus: Thunnus Species: T. obesus
Binomial name
Thunnus obesus (Lowe, 1839)

The Bigeye Tuna (Thunnus obesus) is an important food fish, a type of tuna of the family Scombridae. It is found in the open waters of all tropical and temperate oceans, but not the Mediterranean Sea. Its length is between 60 and 250 centimetres. Image File history File links Thobe_u0. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla Subregnum Parazoa Porifera (sponges) Subregnum Agnotozoa Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders See text The Actinopterygii are the ray-finned fish. ... Families many, see text The Perciformes, also called the Percomorphi or Acanthopteri, include about 40% of all fish and are the largest order of vertebrates. ... Genera Acanthocybium Allothunnus Auxus Cybiosarda Euthynnus Gasterochisma Grammatorcynus Gymnosarda Katsuwonus Orcynopsis Rastrelliger Sarda Scomber Scomberomorus Thunnus Scombridae is the family of the mackerels, tunas, and bonitos, and thus includes many of the most important and familiar food fishes. ... Species Thunnus alalunga Thunnus albacares Thunnus atlanticus Thunnus maccoyii Thunnus obesus Thunnus orientalis Thunnus thynnus Thunnus tonggol Tuna are several species of ocean-dwelling fish in the family Scombridae, mostly in the genus Thunnus. ... In biology, binomial nomenclature is the formal method of naming species. ... Atlantic herring, Clupea harengus: one of the most abundant species of fish in the world. ... Species See text Tuna, sometimes called tunafish, are several species of ocean-dwelling fish in the family Scombridae, mostly in the genus Thunnus. ... In biological classification, family (Latin: familia, plural familiae) is 1) a rank or 2) a taxon in that rank. ... Genera Acanthocybium Allothunnus Auxus Cybiosarda Euthynnus Gasterochisma Grammatorcynus Gymnosarda Katsuwonus Orcynopsis Rastrelliger Sarda Scomber Scomberomorus Thunnus Scombridae is the family of the mackerels, tunas, and bonitos, and thus includes many of the most important and familiar food fishes. ... [[Image:http://www. ... Satellite image The Mediterranean Sea is a part of the Atlantic Ocean almost completely enclosed by land, on the north by Europe, on the south by Africa, and on the east by Asia. ...

Bigeye Tuna are large deep-bodied streamlined fish with large heads and eyes. The pectoral fins are very long, reaching back as far as the second dorsal fin. There are 13 or 14 dorsal spines. Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ... Dorsal Fin of the Orca A dorsal fin is a fin located on the backs of fishes, whales, dolphins and porpoises. ... The word dorsal can refer to many different things. ...

Body colour is dark metallic blue on the back with a grey-white belly and an irridescent blue band running along each flank. The dorsal and anal fins are yellow. Dorsal Fin of the Orca A dorsal fin is a fin located on the backs of fishes, whales, dolphins and porpoises. ... Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ...

Bigeye Tuna feed on a wide variety of fishes, cephalopods and crustaceans during the day and at night. Orders Subclass Coleoidea Belemnoidea (extinct) Sepiida Sepiolida Spirulida Teuthida Octopoda Vampyromorphida Subclass Ammonoidea(extinct) Subclass Nautiloidea The Cephalopods (head-foot) are the mollusk class Cephalopoda characterized by bilateral body symmetry, a prominent head, and a modification of the mollusk foot, a muscular hydrostat, into the form of arms or tentacles. ... Classes & Subclasses Branchiopoda Phyllopoda Sarsostraca Remipedia Cephalocarida Maxillopoda Thecostraca Tantulocarida Branchiura Pentastomida Mystacocarida Copepoda Ostracoda Myodocopa Podocopa Malacostraca Phyllocarida Hoplocarida Eumalacostraca The crustaceans (Crustacea) are a large group of arthropods (55,000 species), usually treated as a subphylum [1]. They include various familiar animals, such as lobsters, crabs, shrimp and...

References

• Thunnus obesus (TSN 172428). Integrated Taxonomic Information System. Accessed on 18 April 2006.
• Thunnus obesus. FishBase. Ed. Ranier Froese and Daniel Pauly. January 2006 version. N.p.: FishBase, 2006.
• Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8