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Hoplostethus atlanticus:   (click for more)

Hoplostethus atlanticus:   (click for more)

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Synonyms
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  • Hoplostethus atlanticum  Richard, 1910: 147.
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  • Leiogaster atlanticus var. spinulosus  Roule, 1916: 15.
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  • Hoplostethus gilchristi  Smith, 1935: 182.
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  • Hoplostethus islandicus  Kotthaus, 1952: 62-87.
    FAO Names
    En - Orange roughy, Fr - Hoplostète orange, Sp - Reloj anaranjado.
    3Alpha Code: ORY     Taxonomic Code: 1610500202
    Diagnostic Features
    Body oval, deep an remarkably compressed. Head large, about 3 times in standard length. Eye small, about 23% of head; no spines on opercular or post-temporal bones.  Teeth minute, in bands; vomer toothless in large specimens.  Enlarged scales in abdominal midline sometimes present, sometimes not. Lateral line with 31 scales enlarged, bearing a low spine.  Dorsal fin with 5-6 spines and 15-18 soft rays. Anal fin with 3 spines and 10-12. Pectoral fin with 19-20. Gillrakers with 6 + 1 + 13-14.  Colour dark orange, red on head and body; opercular membranes black; branchiostegals red outside, black inside; anus black; fins bright orange; membranes of spinous dorsal black; inside of buccal cavity black. 
    Geographical Distribution

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    Western North Atlantic from the Gulf of Maine. Eastern Atlantic, from Ireland, Bay of Biskay, Azores to off the Cape of South Africa; Durban (Indian Ocean) and Pacific Ocean South of Australia, around New Zealand and Chilean waters.
    Habitat and Biology
    Bathypelagic species,from depths of 180 to 1.500 m, most abundant between 400 and 900 m.Feeds crustaceans and fish have found in the stomachs of various specimens.
    Practically nothing is known about the reproduction. A ripe female measuring 451 mm standard length has been taken in September off Rockland, Maine. 
    Size
    About 70 cm; common 20-35 cm.
    Interest to Fisheries
    Not uncommon but so far none of the species considered important commercially but flesh highly esteemed. Caught incidentally in bottom trawls. The total catch reported for this species to FAO for 1999 was 36 636 t. The countries with the largest catches were New Zealand (23 780 t) and Australia (7 553 t).
    Local Names
    English : Deep sea perch ,  Red roughy ,  Rosy soldier fish ,  Orange roughy .
    Danish : Degenfisch ,  Soldatfisk .
    French : Hoplostéte rouge ,  Poisson-montre .
    German : Granatbarsch ,  Kaiserbarsh .
    Japanese : Hiuchidai ,  Orenzi-rafii .
    Spanish : Reloj .
    Swedish : Lyktfiskar .
    Bibliography
    Froese, R. and D. Pauly. Editors. 2003. FishBase. World Wide Web electronic publication. www.fishbase.org
    Lloris, D. - 1986. Ictiofauna demersal y aspectos biogeográficos de la costa sudoccidental de África (SWA/Namibia). Monogr. Zool. Mar., 1: 9-432 pp.
    Maul, G. E. - 1986. Soleidae. In: P.J.P. Whitehead et al., (eds.). Fishes of the North-eastern Atlantic and the Mediterranean (FNAM). Unesco, Paris, vol. III: 1308-1324.
    Maul, G. E. - 1990. Soleidae. In: J.C. Quero et al., (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). Unesco, Portugal, vol. II: 620-622.
    Nakamura, I. - 1986. Trachichthyidae. In: I. Nakamura; T. Inada; M. Takeda; H. Hatanaka (eds.). Important Fishes trawled off Patagonia. Japan mar. Fish. Resource Res. Center: 164-165.
     
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