Gymnosarda unicolor, Dogtooth tuna : fisheries, gamefish

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Gymnosarda unicolor (Rüppell, 1836)

Dogtooth tuna
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Gymnosarda unicolor   AquaMaps   Data sources: GBIF OBIS
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Image of Gymnosarda unicolor (Dogtooth tuna)
Gymnosarda unicolor
Picture by Patzner, R.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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 Ecology

Marine; reef-associated; oceanodromous (Ref. 51243); depth range 0 - 250 m (Ref. 86942). Tropical; 20°C - 28°C (Ref. 5313); 31°N - 30°S, 32°E - 130°W (Ref. 168)

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

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

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 248 cm FL male/unsexed; (Ref. 40637); common length : 190 cm NG male/unsexed; (Ref. 9710); max. published weight: 131.0 kg (Ref. 168)

Short description Morphology | Morphometrics

Dorsal spines (total): 13 - 15; Dorsal soft rays (total): 12-14; Anal spines: 0; Anal soft rays: 12 - 13; Vertebrae: 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).

Biology     Glossary (e.g. 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.

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

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

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)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 March 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 168)





Human uses

Fisheries: minor commercial; gamefish: yes
FAO - Fisheries: landings; Publication: search | FishSource | Sea Around Us

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Spawning aggregation
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
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References
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Strains
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Processing
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Ciguatera
Speed
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Gill area
Otoliths
Brains
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Fisheries: landings; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 20.9 - 28.2, mean 26.5 °C (based on 938 cells).
Phylogenetic diversity index (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).
Trophic level (Ref. 69278):  4.5   ±0.75 se; based on food items.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Assuming tmax>10).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (92 of 100).
Price category (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);