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Gymnosarda unicolor (Rüppell, 1836)

Dogtooth tuna
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Gymnosarda unicolor   AquaMaps   Data sources: GBIF OBIS
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Gymnosarda unicolor
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Strahlenflosser) > Perciformes (Perch-likes) > 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 Ökologie

; seewasser riff-verbunden; ozeanodrom (Ref. 51243); tiefenbereich 10 - 250 m (Ref. 86942).   Tropical; 20°C - 28°C (Ref. 5313); 31°N - 30°S, 32°E - 130°W (Ref. 168)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

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

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 248 cm FL Männchen/unbestimmt; (Ref. 40637); common length : 190 cm NG Männchen/unbestimmt; (Ref. 9710); max. veröff. Gewicht: 131.0 kg (Ref. 168)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 13 - 15; Rückenflossenweichstrahlen (insgesamt): 12-14; Afterflossenstacheln 0; Afterflossenweichstrahlen: 12 - 13; Wirbelzahl: 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     Fachlexikon (Englisch) (z.B. 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).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator : Collette, Bruce B. | Partner

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 Rote Liste Status (Ref. 120744)

  nicht bedroht (LC) ; Date assessed: 05 December 2009

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Reports of ciguatera poisoning (Ref. 168)





Nutzung durch Menschen

Fischereien: weniger kommerziell; Sportfisch: ja
FAO(Fischereien: production; publication : search) | FishSource | Sea Around Us

Mehr Information

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Ökologie
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Ablaichen
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Eier
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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 (2.89 - 3.19), 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.
Widerstandsfähigkeit (Ref. 69278):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming tmax>10).
Verwundbarkeit (Ref. 59153):  High to very high vulnerability (73 of 100) .
Preiskategorie (Ref. 80766):   High.