Rhizoprionodon oligolinx   Springer,  1964 (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Elasmobranchii
Order:Carcharhiniformes
Family:Carcharhinidae

Image copyrights: FAO

Description
Size: 70 cm TL (female); 21 to 26 cm (at birth)

Color: Uniform lead color in the dorsal side and diffued grey in the sides. Pale white in the ventral side. Fins with no distinctive marks. Upper caudal lobe with a dark distal margin.

First dorsal origin behind pectoral free rear tip. Second dorsal origin behind pelvic fin. Preanal ridges present, interdorsal ridge absent. No eye notches. No papillose gillrakers. No lateral keels in caudal peduncle. Precaudal pit transverse, present in upper and lower side. Hyomandibular pores present at each side, 9 in the right and 10 in the left side. No spiracle. First dorsal base 3.1 times the distance between pectoral and pelvic bases. Labial furrows developed, not restricted to mouth corners but only 0.8% of total length. Preanal snout 2.7% of total length. Teeth similar in both jaws.

Dioecious, internal (oviduct) fertilization, internal live bearers. Viviparous, placental. With 3 to 5 young per litter. Size at birth 20-30 cm TL. Distinct pairing with embrace.


Synonym (s)
Carcharhinus macloti (non Muller & Henle, 1839)
(Misapplied name)
Loxodon macrorhinus (non Muller & Henle, 1839)
(Misapplied name)
Rhizoprionodon acutus (non Ruppell, 1837)
(Misapplied name)
Rhizoprionodon taylori (non Ogilby, 1915)
(Misapplied name)
Scoliodon laticaudus (non Muller & Henle, 1838)
(Misapplied name)
Carcharias acutus (nec Ruppell) Day, 1878
Rhizoprionodon (Protozygaena) oligolinx Springer, 1964
Scoliodon palasorrah (nec Cuvier) Misra, 1969
Rizoprionodon oligolinx Springer, 1964
(Misspelling)
Scoliodon palasorra (Bleeker, 1853)
(Misspelling)

Common Name (s)
• Grey Dog Shark (English)
• Moosi (Gujarati)
• Shivra (Kannada)
• Pal Sravu (Malayalam)
• Palsorrah (Malayalam)
• Purrooway Sorrah (Tamil)
• Pal Sorrah (Telugu)
• Sem Sorrah (Telugu)
• Grey Sharpnose Shark (English)
• Pearl Shark (Malayalam)
• Purooway Sorrah (Tamil)
Economic Importance and Threats
Importance:  Commercial
(Fisheries. Utilized fresh and probably dried salted for human consumption. Also used for fishmeal and fins.)
Threats:  Anthropogenic
(Exploited by inshore artisanal, subsistence and commercial fisheries through most of its range.)

Ecology
Habitat:  Reef Associated, Coastal
Trophic Level:  Tertiary Consumer
Prey:  Fishes, cephalopods and crustaceans
IUCN Status:  Least Concern

Biogeography


• Kerala, Kochi INDIA (Record: 2000-2002)
• Tamil Nadu, Chennai INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• SRI LANKA (Record: 10/1991-12/1993)
• Orissa INDIA
• Tamil Nadu INDIA
• Kerala INDIA
• INDIA
• PAKISTAN
• SRI LANKA
• INDONESIA
• Andaman and Nicobar Islands INDIA
• Gujarat INDIA
• Kerala, Kochi INDIA

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
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at - http://tnenvis.nic.in
  • (2003) IUCN Red list of threatened species Available at - http://www.iucnredlist.org/
  • Moron, J; Bertrand, B and Last, P (1998) A check-list of sharks and rays of western Sri Lanka Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 40(1&2) 142-157 Available at - NIO, Goa
  • Dr. Ramesh, R; Dr. Nammalwar, P and Dr. Gowri, VS (2008) Database on coastal information of Tamil Nadu Report Submitted to Environmental Information System (ENVIS) Centre, Department of Environment, Government of Tamil Nadu Institute for Ocean Management, Anna University, Chennai, Tamil Nadu. Available at - http://tnenvis.nic.in/PDF/coastal%20data.pdf
  • Talwar, PK and Kacker, RK (1984) Commercial sea fishes of India ZSI, Calcutta 997 pp Available at - NIO, Goa
  • Hanfee, F (1999) Management of shark fisheries in two Indian coastal states: Tamil Nadu and Kerala Case studies of the management of elasmobranch fisheries. FAO Fisheries Technical Paper. No. 378 Rome, FAO Part 1 (11) Available at - http://www.fao.org/docrep/003/X2097E/X2097E14.htm#ch11.
  • 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
  • Talwar, PK (1990) Fishes of Andaman and Nicobar Islands: A synoptic survey Journal of the Andaman Science Association Andaman Science Association, Port Blair 6(2) 71-102 Available at - NIO,Goa
  • Kizhakudan, SJ; Nair, KVS and Zala, MS Demersal Finfish Resources of Gujarat Sustainable fisheries development: Focus on Gujarat 57-66 Available at - http://eprints.cmfri.org.in/6060/
  • Pillai, PKM and Augustine, SK (2000) A code list of common marine living resources of the Indian seas CMFRI Special Publication No.12 CMFRI 1-115 Available at - eprints.cmfri.org.in/3975/1/Special_Publication_No_12_Revised.pdf
  • Biswas, KP (2009) Fishes around Indian Ocean Dominant Fish Groups Occurring in Indian Coasts Daya publishing house Available at - NIO,Goa

Page last updated on:2012-01-04

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