Rudderfish, Centrolophus niger (Gmelin 1789)
A Rudderfish, Centrolophus niger, collected during the 2003 NORFANZ Expedition to survey seamount chains in the Tasman Sea. Source: Kerryn Parkinson / NORFANZ Founding Parties. License: All rights reserved
Rudderfish, Centrolophus niger (Gmelin 1789)
More Info
Distribution |
Continental slope off Sydney, New South Wales, around southern Australia to Northwest Shelf, Western Australia, although rarely taken along the south and west coasts; also Lord Howe Island and seamounts in the Tasman Sea. Depth range 114-1178 metres. Elsewhere, the species is widespread in temperate waters from the North and South Atlantic, Mediterranean, Adriatic, South Africa and New Zealand |
Features |
Dorsal fin (total) 37-42; Anal fin (total) 24-27; Caudal fin 17; Pectorla fin 20-23; Pelvic fin i, 5: Lateral line approx. 150; Gill rakers 5-6+1+13-15; Vertebrae 25. Body streamlined, moderately shallow (25-30% SL), thick; caudal peduncle long, almost tubular. Head small (21-25% SL) but thick; snout very blunt; eyes small (17-21% HL); mouth small, maxillae reaching below front of eyes, very slightly oblique; teeth fine, single row in each jaw. Scales very small and easily dislodged; lateral line curved, about parallel to profile of back. Head and trunk covered with small pores. Pyloric caeca few, finger-like. Single elongate, low, fleshy dorsal fin with short soft spines grading into branched rays, origin well behind pectoral fin bases, fin highest anteriorly, outer margin slightly concave; anal fin low, of moderate length, margin slightly concave; caudal fin lunate to slightly forked. Pectoral fins small and rounded. Pelvic fins very small, thoracic. |
Size |
To 1.2 metres |
Colour |
Dull dusky brown on back, paling to silvery grey on belly; fins entirely grey brown; head deep brown paling on snout to pale creamy pink; no distinctive markings. Juveniles with 2 broad dark bands across sides. |
Fisheries |
Rarely taken and even less so in commercial quantities but may be caught more as large powerful trawlers increasingly harvest deep continental slope waters. |
Species Citation |
Perca nigra Gmelin 1789, in Linnaeus (ed) Systema Naturae Vol. 1 Pt 3: 1321. Type locality: Rivers of Cornwall, England. |
Author |
Bray, D.J. 2019 |
Resources |
Rudderfish, Centrolophus niger (Gmelin 1789)
References
Gmelin, J.F. 1789. Pisces. pp. 1126-1516 in Linnaeus, C. (ed.) Systema Naturae. Leiden : Delamollière Vol. 1 Pt 3.
Gomon, M.F. 2008. Families Sphyraenidae to Centrolophidae. pp. 774-800 in Gomon. M.F., Bray, D.J. & Kuiter, R.H (eds). Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp.
Haedrich, R.L. 1967. The stromateoid fishes: systematics and a classification. Bulletin of the Museum of Comparative Zoology 135(2): 31-139. See ref at BHL
Iwamoto, T. 2015. Centrolophus niger. The IUCN Red List of Threatened Species 2015: e.T198571A21914161. http://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T198571A21914161.en. Downloaded on 20 May 2019.
Lacépède, B.G. 1802. Histoire Naturelle des Poissons. Paris : chez Plassan Vol. 4 728 pp. 16 pls.
Last, P.R., Scott, E.O.G. & Talbot, F.H. 1983. Fishes of Tasmania. Hobart : Tasmanian Fisheries Development Authority 563 pp. figs.
McDowall, R.M. 1982. The centrolophid fishes of New Zealand (Pisces : Stromateoidei). Journal of the Royal Society of New Zealand 12(2): 103-142 figs 1-20
McDowall, R.M. 1994. Family Centrolophidae. pp. 832-838, figs 736-741 in Gomon, M.F., Glover, C.J.M. & Kuiter, R.H (eds). The Fishes of Australia's South Coast. Adelaide : State Printer 992 pp. 810 figs.
Ogilby, J.D. 1893. Description of a new pelagic fish from New Zealand. Records of the Australian Museum 2(5): 64-65
Parin, N.V. & Piotrovsky, A.S. 2004. Stromateoid fishes (suborder Stromateoidei) of the Indian Ocean (species composition, distribution, biology, and fisheries). Journal of Ichthyology 44(Suppl. 1): 33-62
Stewart, A.L., Last, P.R. & Struthers, C.D. 2015. 235 Family Centrolophidae pp. 1648-1661, in Roberts, C.D., Stewart, A.L. & Struthers, C.D. (eds) The Fishes of New Zealand. Wellington : Te Papa Press Vol. 4 pp. 1153-1748.
Yearsley, G.K., Last, P.R. & Ward, R.D. (eds) 1999. Australian Seafood Handbook. Hobart : CSIRO Marine Research 460 pp.