Common names from other countries

Thon rouge du sud, Atún rojo del Sur, Southern bluefin, ... more

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> Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Thunnus: Greek, thynnos = tunna (Ref. 45335).
More on author: Castelnau.

Environment: milieu / climate zone / depth range / distribution range Ecologie

marien; oceanodroom (Ref. 51243); diepte 0 - 2743 m (Ref. 57178). Temperate; 5°C - 20°C (Ref. 168); 10°S - 60°S, 180°W - 180°E (Ref. 54921)

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Atlantic, Indian and Pacific: temperate and cold seas, mainly between 30°S and 50°S, to nearly 60°S. During spawning, large fish migrate to tropical seas, off the west coast of Australia, up to 10°S. Highly migratory species. If the current exploitation continues, the population will be below 500 mature individuals in 100 years (Ref. 27905).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 122.0, range 120 - 130 cm
Max length : 245 cm FL mannelijk / geslacht onbekend; (Ref. 5203); common length : 160 cm FL mannelijk / geslacht onbekend; (Ref. 9684); max. gepubliceerd gewicht: 260.0 kg (Ref. 5203); max. gerapporteerde leeftijd: 20 Jaren (Ref. 168)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Wervels: 39. A very large species, deepest near the middle of the first dorsal fin base. Swim bladder present. Lower sides and belly silvery white with colorless transverse lines alternating with rows of colorless dots. The first dorsal fin is yellow or bluish; the anal fin and finlets are dusky yellow edged with black; the median caudal keel is yellow in adults.

By maturity, most southern bluefin tuna lead an oceanic, pelagic existence (Ref. 6390). Spawning fish and larvae are encountered in waters with surface temperatures between 20° and 30°C. An opportunistic feeder, preying on a wide variety of fishes, crustaceans, cephalopods, salps, and other marine animals. Mostly canned (Ref. 9684). A specialized fishery for sashimi-quality has been developed recently by New Zealand fishers. In Japan, it is highly prized for the sashimi markets.

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

It is not known whether all mature fish spawn each year, every few years, or even only once in their lifetime (Ref. 30320).

Hoofdreferentie Upload your references | Referenties | Coördinator : Collette, Bruce B. | Medewerkers

Collette, B.B. and C.E. Nauen, 1983. FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Bedreigd (EN) (A1bd); Date assessed: 15 January 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: commercieel; Aquacultuur: commercieel; sportvis: ja

FAO(Aquaculture systems: productie; visserij: productie, soortsprofiel; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 2.5 - 7.9, mean 5 (based on 439 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01288 (0.01067 - 0.01556), b=3.03 (2.99 - 3.07), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.9 ±0.53 se; based on food items.

Weerstandsvermogen (Ref. 120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (K=0.14-0.15; tm=8-9; tmax=20; Fec=14 million).

Prior r = 0.27, 95% CL = 0.18 - 0.41, Based on 1 full stock assessment.

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (67 of 100).

Climate Vulnerability (Ref. 125649): Moderate vulnerability (38 of 100).

Prijsklasse (Ref. 80766): Very high.

Thunnus maccoyii (Castelnau, 1872)