Centrophorus granulosus   (Bloch & Schneider,  1801) (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Elasmobranchii
Order:Squaliformes
Family:Centrophoridae

Image copyrights: Wirtz, P

Description
Size: 160 cm

Color: Grey above, lighter below.

Body elongate and slightly compressed; dermal denticles of back widely separated and not overlapping, low crowned, thorn-like in young but broad and rounded in adults, without cusps and with low ridges confined to their posterior edges. Snout pointed and longer than mouth width but shorter than distance from mouth to pectoral fin origins. Teeth differing in upper and lower jaws; uppers much smaller, relatively broad and bladelike, with high, mostly erect cusps and no cusplets; lowers large, compressed, bladelike, with a single oblique cusp, no cusplets, a deeply notched outer edge, and serrations in adults. A short, strong spine with lateral grooves on anterior edges of both dorsal fins; first dorsal relatively high and short, second dorsal lower than first, its base about 3/4 the length of first dorsal base; inner corners of pectoral fins greatly elongated, produced as narrow, pointed lobes that extend to behind the level of first dorsal spine, and with inner margins longer than distance from second dorsal spine to caudal origin; caudal fin with a strong subterminal notch. Caudal peduncle without dermal keels or precaudal pits.

Dioecious, internal (oviduct) fertilization, internal live bearers. Ovoviviparous, embryos feed solely on yolk. Young are born from 30 to 42 cm or more. Distinct pairing with embrace.


Synonym (s)
Centrophorus bragancae Regan, 1906
Centrophorus machiquensis Maul, 1955
Dalatias nocturnus Rafinesque, 1810
Squalus granulosus Bloch & Schneider, 1801

Common Name (s)
• Gulper Shark (English)
Economic Importance and Threats
Importance:  Commercial
(Fisheries; Smoked, dried and salted for human consumption; liver for liver oil.)

Ecology
Habitat:  Demersal
Trophic Level:  Tertiary Consumer
Prey:  Bony fishes such as hake, epigonids, lanternfish, herring, smelts, cods, rattails, squid and crustaceans
IUCN Status:  Vulnerable

Biogeography


• Kerala, Kochi INDIA (Record: 2000-2002)
• Kerala, Kochi Fisheries Harbour INDIA (Record: 01/2008-06/2009) (Depth: 50-1440 mts)

Literature Source(s)
  • Joshi, KK; Balachandran, K and Raje, SG (2008) Changes in the shark fishery at Cochin Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin, India 50(1) 103-105 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • Fischer, W and Bianchi, G (Eds.) (1984) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51) FAO, Rome 5 Available at - http://www.fao.org/docrep/009/ad468e/ad468e00.HTM
  • Raje, SG; Sivakami, S; Mohanraj, G; Manoj Kumar, PP; Raju, A and Joshi, KK (2007) An atlas on the Elasmobranch fishery resources of India CMFRI Special publication CMFRI, Cochin, India. 95 253pp Available at - http://eprints.cmfri.org.in/4056/1/Special_Publn_95.pdf
  • Akhilesh, KV; Ganga, U; Pillai, NGK; Vivekanandan, E; Bineesh, KK; Shanis, CPR and Hashim, M (2011) Deep-sea fishing for chondrichthyan resources and sustainability concerns-a case study from southwest coast of India Indian Journal of Geo-Marine Sciences NISCAIR 40(3) 347-355 Available at - nopr.niscair.res.in/bitstream/.../1/IJMS%2040(3)%20347-355.pdf

Page last updated on:2012-02-17

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