Gymnosarda unicolor, Dogtooth tuna : fisheries, gamefish

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Gymnosarda unicolor (Rüppell, 1836)

Dogtooth tuna
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Gymnosarda unicolor   AquaMaps   Data sources: GBIF OBIS
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Image of Gymnosarda unicolor (Dogtooth tuna)
Gymnosarda unicolor
Picture by Patzner, R.

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Gymnosarda: Greek, gymnos = naked + Greek, sarde = sardine; 1598 (Ref. 45335).
More on author: Rüppell.

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

marien rifbewoner; oceanodroom (Ref. 51243); diepte 0 - 250 m (Ref. 86942). Tropical; 20°C - 28°C (Ref. 5313); 31°N - 30°S, 32°E - 130°W (Ref. 168)

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Indo-Pacific: Red Sea and East Africa to French Polynesia, north to Japan, south to Australia.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 248 cm FL mannelijk / geslacht onbekend; (Ref. 40637); common length : 190 cm NG mannelijk / geslacht onbekend; (Ref. 9710); max. gepubliceerd gewicht: 131.0 kg (Ref. 168)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 13 - 15; Dorsale zachte stralen (totaal): 12-14; Anale stekels 0; Anale zachte stralen: 12 - 13; Wervels: 38. This species is distinguished by the following characters: body elongate and moderately compressed; mouth fairly large, upper jaw reaching to middle of eye; 14 to 31 large, conical teeth on upper jaw, 10 to 24 on lower jaw; 2 patches of villiform teeth on upper surface of tongue; total gill rakers on first gill arch 11-14; D1 XIII-XV, its border almost straight, the second followed by 6-7 finlets, dorsal fins close together; anal fin followed by 6 finlets; pectoral fins with 25-28 rays; interpelvic process large and single; lateral line strongly undulating; body naked posterior to corselet except for lateral line, dorsal-fin base, and caudal keel; caudal peduncle slender, with a well-developed lateral keel between 2 smaller keels on each side. Colour of back and upper sides brilliant blue-black, lower sides and belly silvery; no lines, spots or other markings on body; anterior tip of first dorsal fin dark; other fins greyish (Ref. 9684).

Biologie     Verklarende woordenlijst (bv. epibenthic)

An offshore species found mainly around coral reefs. Generally solitary or occur in small schools of six or less. Preys on small schooling fishes such as Decapterus, Caesio, Nasio, Cirrhilabrus, Pterocaesio and squids. Caught mainly by pole-and-line. Marketed canned and frozen (Ref. 9684, 48637). Adults may be ciguatoxic (Ref. 37816). Minimum depth reported taken from Ref. 128797.

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

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)

  Niet bedreigd (LC) ; Date assessed: 01 March 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Reports of ciguatera poisoning (Ref. 168)





Gebruik door de mens

Visserij: van minder commercieel belang; sportvis: ja
FAO - visserij: aanvoer; Publication: search | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 123201): 20.9 - 28.2, mean 26.5 °C (based on 938 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00643 - 0.01784), b=3.06 (2.92 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisch niveau (Ref. 69278):  4.5   ±0.75 se; based on food items.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming tmax>10).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (92 of 100).
Prijsklasse (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 11.6 [6.8, 20.1] mg/100g; Iron = 0.539 [0.311, 0.982] mg/100g; Protein = 21.8 [20.2, 23.1] %; Omega3 = 0.136 [0.084, 0.225] g/100g; Selenium = 69.1 [38.3, 127.4] μg/100g; VitaminA = 51.6 [19.1, 151.7] μg/100g; Zinc = 0.543 [0.384, 0.760] mg/100g (wet weight);