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Seriola carpenteri

 

 

CARANGIDAE
Guinean amberjack

  Seriola carpenteri
Mather, 1971

Relevant synonyms
None

Misidentification
None

Meristic formula
D1, VII-VIII; D2, I+28-33; A, II+I+17-21; P, 20; GR, 22-23

 drawing : Tuvia Kurz    

SHORT DESCRIPTION
Elongated body, posterior end of upper jaw relatively broad. In adults, length of dorsal fin lobe equal or slightly longer than pectoral fin, and usually 15-18% of fork length. Soft anal fin base usually 58-66% of second dorsal fin base. Anterior margin of first pterygiophore of anal fin moderately concave. Caudal peduncle grooves present. Lateral line without scutes.

color : adults dark pink dorsally and laterally, darker on the head, and pale ventrally. Juveniles, smaller than 20 cm fork length, yellow with 5 dark body bars, irregular and broken, that do not extend onto membranes of soft dorsal and anal fins, and an sixth bar, small and dark, at end of caudal peduncle.

size : in the Mediterranean, on average, 65 cm fork length. In the Atlantic to 55 cm fork length.

DISTINGUISHING CHARACTERISTICS

  • Seriola dumerili: the number of gill rakers decreases with growth from 18-24 in small individuals to 11-19 in fish larger than 20 cm fork length.
  • Seriola fasciata: end of upper jaw relatively slender and eye relatively big.
  • Seriola rivoliana: length of second dorsal fin lobe longer, usually 19-22% of fork length.

    BIOLOGY / ECOLOGY
    Its biology is little known; diet composed by squids and fishes, and its spawning probably occurs in August-September. The species is shorter at sexual maturity than Seriola dumerili, which the first spawning occurs at 91 cm total length (Marino et al., 1995).

    habitat : juveniles epipelagic in oceanic or offshore neritic waters and adults benthopelagic, generally restricted to coastal waters over the continental shelf, from the surface to at least 200 m depth.


  • 1st MEDITERRANEAN RECORD
    Off Lampedusa Island, central Mediterranean, 2000.


    DISTRIBUTION
    Worldwide : Eastern Atlantic, from Angola to Bay of Biscay. Generally confined to areas where surface temperatures exceed 25ºC. Its distribution may be influenced by seasonal movements of the 18-27ºC water mass. Mediterranean : two reports of 20 and 148 individuals (August 1996 and September 1997), off Lampedusa Island, central Mediterranean (Pizzicori et al., 2000) ; the reproductive conditions of the specimens captured suggest that this species is now established in this area.

    ESTABLISHMENT SUCCESS
    Rare.

    speculated reasons for success :


    MODE OF INTRODUCTION
    Via the Strait of Gibraltar.


    IMPORTANCE TO HUMANS
    In Atlantic waters, usually it is caught with pelagic and bottom trawls, purse seines and gillnets. Although it is scarce in the Mediterranean, its presence in the commercial catches can be underestimated due to its probable misidentification as Seriola dumerili.


    KEY REFERENCES

    • Quéro J.C., 1986. Capture dans le golfe de Gascogne de Seriola carpenteri Mather, 1971 (Pisces, Perciformes, Carangidae), espèce nouvelle pour la faune de l'Atlantique nord-est. Cybium, 10: 302-304.
    • Marino G., Mandich A., Massari A., Andaloro F., Porello S., Finoia M.G. and Cevasco F., 1995. Aspects of reproductive biology of the Mediterranean amberjack (Seriola dumerili Risso) during the spawning period. Journal of Applied Ichthyology, 11: 9-24.
    • Pizzicori P., Castriota L., Marino G. and Andaloro F., 2000. Seriola carpenteri: a new immigrant in the Mediterranean from the Atlantic Ocean. Journal of Fish. Biology, 57: 1335-1338.

    FEEDBACK / COMMENTS TO AUTHORS



    Last update of the species sheet:
    April 2002

    ©ciesm 2002