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Thunnus thynnus (Linnaeus, 1758)
NORTHERN BLUEFIN TUNA
Life   Vertebrata   Fish   Scombridae   Thunnus


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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Thunnus&speciesname=thynnus ---> http://www.fishbase.se/summary/Thunnus-thynnus.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Thunnus thynnus   (Linnaeus, 1758)

Atlantic bluefin tuna Add your observation in Fish Watcher
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Thunnus thynnus   AquaMaps   Data sources: GBIF OBIS
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Pictures | Stamps, Coins Misc. | Google image Image of Thunnus thynnus (Atlantic bluefin tuna) Thunnus thynnus
Picture by Ticina, V.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Thunnus: Greek, thynnos = tunna (Ref. 45335 ) .

Environment / Climate / Range Ecology

Marine; brackish; pelagic-oceanic; oceanodromous (Ref. 51243 ); depth range 0 - 985 m (Ref. 55291 ), usually 0 - 100 m.   Subtropical; 3°C - 30°C (Ref. 88796 ); 76°N - 58°S, 99°W - 42°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Atlantic: Labrador and Newfoundland to Gulf of Mexico, and Caribbean Sea to Venezuela and Brazil. Eastern Atlantic: Lofoten Islands off Norway to Canary Islands, including the Mediterranean and the southern part of the Black Sea (Ref. 6769 ). Reported from Mauritania (Ref. 5377 ). There is a subpopulation off South Africa. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139 ).

Length at first maturity / Size / Weight / Age

Maturity: L m   ? , range 97 - 110 cm
Max length : 458 cm TL male/unsexed; (Ref. 26340 ); common length : 200 cm FL male/unsexed; (Ref. 168 ); max. published weight: 684.0 kg (Ref. 26340 ); max. reported age: 32 years (Ref. 5810 )

Short description Morphology | Morphometrics

Dorsal spines (total): 12 - 14; Dorsal soft rays (total): 13-15; Anal spines : 0; Anal soft rays : 13 - 16; Vertebrae : 39. A very large species, deepest near the middle of the first dorsal fin base. The second dorsal fin higher than the first; the pectoral fins are very short, less than 80% of head length. Swim bladder present. Lower sides and belly silvery white with colorless transverse lines alternated with rows of colorless dots. The first dorsal fin is yellow or bluish; the second reddish-brown; the anal fin and finlets dusky yellow and edged with black; the median caudal keel is black in adults. May be confused with several other tunas, these are typically much smaller and easily distinguished by specific patterns of stripes, bands or dots.

Biology     Glossary (e.g. epibenthic)

Oceanic but seasonally coming close to shore. They school by size, sometimes together with albacore, yellowfin, bigeye, skipjack etc. Visual predators (Ref. 88866 ) preying on small schooling fishes (anchovies, sauries, hakes) or on squids and red crabs. Live up to 40 years in the western Atlantic (Ref. 88822 ). Weight up to 900 kg (Ref. 88823 ). Eggs and larvae are pelagic (Ref. 6769 ). Juvenile growth is rapid (about 30 cm / year) but slower than in other tuna and billfish species (Ref. 88867 ). Adult growth is considerably slower, with about 10 years needed to reach two thirds of maximum length. Commercially cultured in Japan. Utilized fresh for sashimi, also canned (Ref. 9988 ). Become rare because of massive overfishing (Ref. 35388 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous batch spawner, with an inter-spawning interval of 1-2 days in the Mediterranean Sea (Ref. 88871 ). Females larger than 205 cm fork length are estimated to have a mean fecundity of 30-60 and 13-15 million eggs, in the western and eastern Atlantic respectively (Ref. 40805 , Ref. 88871 ). Spawning occurs when sea surface temperatures are between 22.6-27.5 ºC and 22.5-25.5 ºC in the Gulf of Mexico and Mediterranean Sea respectively (88868). Spawning occurs between June and August in the Mediterranean Sea (Ref. 88868 ). Eggs are released directly to the water column and hatch after 2 days (Ref. 88823 ). At 24°C, embryo development lasts about 32 hours and larval stages about 30 days. Egg size 1.0 mm, larval length at hatching 2.8 mm. Spawning grounds are mainly known from the Gulf of Mexico and the Mediterranean Sea, but the presence of mature individuals and larvae far from these areas (e.g. Bahamas and central North Atlantic Ocean) suggest that other spawning grounds may also be utilized (Ref. 88873 , Ref. 88874 , Ref. 88872 ). Appears to display homing behaviour with (western-tagged individuals migrating back to specific spawning sites either in the Gulf of Mexico or the Mediterranean Sea) (Ref. 88872 , Ref. 88870 ). Fidelity to natal areas seem to occur once individuals reach maturity, i.e. after returning to either the western or eastern spawning grounds (Ref. 88868 ).

Main reference Upload your references | References | Coordinator : Collette, Bruce B. | Collaborators

Collette, B.B. , 1999. Mackerels, molecules, and morphology. p. 149-164. In B. Séret and J.-Y. Sire (eds.) Proc. 5th Indo-Pac. Fish Conf., Noumea, Paris. (Ref. 33246 )

IUCN Red List Status (Ref. 115185 )

  Endangered (EN)  (A2bd)

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; aquaculture: commercial; gamefish: yes FAO(Aquaculture: production ; fisheries: production , species profile ; publication : search ) | FIRMS (Stock assessments) | FishSource | Sea Around Us

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
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Ecology
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Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
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Internet sources

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 7.5 - 24.7, mean 12.6 (based on 3084 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.01230 (0.00920 - 0.01644), b=3.01 (2.97 - 3.05), in cm Total Length, based on LWR estimates for this species (Ref. 93245 ). Trophic Level (Ref. 69278 ):  4.5   ±0.8 se; Based on diet studies. Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (K=0.05-0.06; tm=3-5; tmax=15; Fec=10 million). Prior r = 0.36, 2 SD range = 0.21 - 0.64, log(r) = -1.02, SD log(r) = 0.29, Based on: 4 M, 23 K, 7 tgen, 6 tmax, 5 Fec records Vulnerability (Ref. 59153 ):  Very high vulnerability (82 of 100) . Price category (Ref. 80766 ):   Very high .

Entered by Luna, Susan M. Modified by Binohlan, Crispina B. Fish Forum
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