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Gymnosarda unicolor  (Rüppell, 1836)

Dogtooth tuna
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Native range
This map was computer-generated and has not yet been reviewed.
Gymnosarda unicolor   AquaMaps   Data sources: GBIF OBIS
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Gymnosarda unicolor
Picture by Patzner, R.

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Gymnosarda: Greek, gymnos = naked + Greek, sarde = sardine; 1598 (Ref. 45335).

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

; marin récifal; océanodrome (Ref. 51243); profondeur 10 - 250 m (Ref. 86942).   Tropical; 20°C - 28°C (Ref. 5313); 31°N - 30°S, 32°E - 130°W (Ref. 168)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

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

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 248 cm FL mâle / non sexé; (Ref. 40637); common length : 190 cm NG mâle / non sexé; (Ref. 9710); poids max. publié: 131.0 kg (Ref. 168)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 13 - 15; Rayons mous dorsaux (Total): 12-14; Épines anales 0; Rayons mous anaux: 12 - 13; Vertèbres: 38. Mouth fairly large, upper jaw reaching to middle of eye. Laminae of olfactory rosette 48 to 56. Interpelvic process large and single. Lateral line strongly undulating. Body naked posterior to corselet. Swim bladder large, spleen visible in ventral view on the right side of the body. The back and upper sides brilliant blue-black, lower sides and belly silvery; no lines, spots or other markings on the body.

Biologie     Glossaire (ex. 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. Marketed canned and frozen (Ref. 9684, 48637). Adults may be ciguatoxic (Ref. 37816).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur : Collette, Bruce B. | Collaborateurs

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)

Statut dans la liste rouge de l'IUCN (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Reports of ciguatera poisoning (Ref. 168)




Utilisations par l'homme

Pêcheries: intérêt commercial mineur; pêche sportive: oui
FAO(pêcheries: production; publication : search) | FishSource | Sea Around Us

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 20.9 - 28.2, mean 26.5 (based on 938 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00562 - 0.01952), b=3.04 (2.88 - 3.20), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Niveau trophique (Ref. 69278):  4.5   ±0.75 se; Based on food items.
Résilience (Ref. 69278):  Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming tmax>10).
Vulnérabilité (Ref. 59153):  High to very high vulnerability (73 of 100) .
Catégorie de prix (Ref. 80766):   High.