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Acanthistius brasilianus:   (click for more)

Acanthistius brasilianus:   (click for more)

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Synonyms
  •  
  • Plectropoma brasilianum  Cuvier, 1828:397 (original description).
  •  
  • Plectropoma patachonica  Jenyns, 1840:11 (questionable).
    FAO Names
    En - Argentine seabass, Fr - Serran argentin, Sp - Mero sureño.
    3Alpha Code: BSZ     Taxonomic Code: 1700225901
    Diagnostic Features
    Body deep, compressed; covered by small ctenoid scales. Dorsal profile of body evenly arched.  Lateral line with 84-98 scales, running from upper margin of opercle to caudal fin base, gradually curved anteriorly and fairly straight posteriorly. Mouth large and slightly protractile, posterior end of upper jaw reaching to below posterior margin of eye. Fleshy lips well developed on upper jaw, lower jaw extending anterior to upper jaw. Eye large, about equal to interorbital width, situated nearer to dorsal profile than to ventral profile of head.  Teeth in villiform bands on both jaws, those of outer series fairly enlarged. Villiform toth band V-shaped on vomer and elongate on palatines.  Two nostrils small circular anterior nostril with two large spines and one small spine below. Preopercle with serrations on posterodorsal margin, two spines ventrally directed on posteroventral margin and one or two spines on corner.  Head and opercle covered with small ctenoid scales except anterior part of snout and almost all part of lips.  First gill arch with 20-23 gillrakers.  First dorsal fin with 12-13 very strong spines, fifth longest and 15-16 soft rays. Anal fin with 2 very strong spines and 8 soft rays. Pectoral fin moderate, with 15-17 rays, its length over half of head length. Pelvic fin large, extending to nearly below tip of pectoral fin. Caudal fin round.  Colour brownish, with 3-4 dark bands on lateral side of body; small irregular shaped dark spots on body and dorsal and anal fins. 
    Geographical Distribution

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    Southwestern Atlantic, Brazil, Urugay and Argentine.
    Habitat and Biology
    Benthopelagic marine and brackish waters.Found on the continental shelf to 100 m (adults 60-80 m) in colder waters. Feeds on crustaceans (crabs, stomatopods and shrimps), molluscs (bivalves and small cephalopods), fishes and worms.
    Spawning between July to September (males); July to October (females), ocasionally to December. The size for first maturity is (males and females) 29 cm. 
    Size
    Attains to 61 cm; common 35 to 45 cm.
    Interest to Fisheries
    Caugth with bottom trawl. The total catch reported for this species to FAO for 1999 was 5 914 t. The countries with the largest catches were Argentina (5 895 t) and Uruguay (19 t).
    Utilized to some degree for consumption (marketed fresh, frozen; fillet with or without skin).
    Local Names
    English : Sea bass .
    French : Serran argentin .
    Japanese : Rapurata-mero .
    Portuguese : Garoupa senhor de engenho ,  Senhor de engenho ,  Serrano-argentino .
    Spanish : Mero ,  Mero sure ,  Mero argentino .
    Bibliography
    Catalog On Line. Cosseau, M.B. & R. Perrotta.- 1998. Peces marinos de Argentina. Biologia distribución pesca. INIDEP (Instituto Nacional de Investigación Desarrollo Pesquero). Mar del Plata, Argentina. 163 pp.Fishbase: ICLARM .
    Menni, R.C., R.A. Ringuelet & R.H. Aramburu.- 1984. Peces marinos de la Argentina y Uruguay. Editorial Hemisferio Sur S.A. Buenos Aires, Argentina. 359 pp.  .
    Nakamura, I.- 1986. Serranidae. In: I. Nakamura; T. Inada; M. Takeda; H. Hatanaka (eds.). Important Fishes trawled off Patagonia.Japan mar. Fish. Resource Res. Center: 196-197. . 
    Pereiro, S. & A. Vasquez.- 1988. Peces marinos III. In: G.B. Cabl; B. Marcheti (eds.) Centro editor de América Latina S. A., Jun Buenos Aires, Brasil.65-94 pp.Species 2000 Dynamic (Checklist Query).
    Vera, J.- 1992. Diccionario multilingüe especies marinas para el mundo hispanoMinisterio de Agricultura, Pesca y Alimentación Secretaria General Tica.1282 pp.
     
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