Centrophorus acus   Garman  1906 (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Elasmobranchii
Order:Squaliformes
Family:Centrophoridae

Image copyrights: FAO

Description
Size: Females 444-1108 mm in length; males 790-875 mm in length

Weight: Females 0.5-7.3 kg; males 2.5-3.6 kg

Color: Dark gray and brown above with slightly lighter lower side.

Snout flattened, narrowly parabolic and moderately long. Head about 1/4 of the total length and with short nasal flaps, anteriorly. Gill openings moderately broad, increasing in width posteriorly. First dorsal fin relatively low and long and the second dorsal fin nearly 2/3 of the first dorsal at base as well as of the length and 3/4 of the height. Both dorsal fins with strong and grooved spines anteriorly. First dorsal origin is over pectoral fin inner margin and the insertion is well in front of the pelvic origin and closer to pectoral base. Second dorsal origin is over inner margins of pelvic fins. Free rear tips of pectoral fins extended into moderately elongated, narrow angular lobes reaching the level or slightly past first dorsal fin origin. Caudal fin asymmetrical with long upper and short lower lobes. The post-ventral margin of caudal fin weakly notched and with weak folds.

Ovoviviparous, dioecious, internal (oviduct) fertilization, internal live bearers. Embryos feed solely on yolk. Distinct pairing with embrace.


Synonym (s)
Centrophorus acus Garman 1906
(Senior synonym)
Centrophorus drygalskii Engelhardt 1912
(Ambiguous synonym)
Centrophorus steindachneri Pietschmann 1907
(Junior synonym)

Common Name (s)
• Needle Dogfish (English)
Economic Importance and Threats
Threats:  Anthropogenic
(Highly susceptible to overfishing)

Ecology
Habitat:  Demersal
IUCN Status:  NearThreatened

Biogeography


• Andaman and Nicobar Islands, Off South Andaman Islands INDIA (Record: 1988-1992) (Depth: 200-400 mts)

Literature Source(s)
  • Soundararajan, R and Roy, SD (2004) Distributional record and biological notes on two deep-sea sharks, Centrophorus acus Garman and Squalus megalops (Macleay), from Andaman waters Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 46(2) 178-184 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
  • (2003) IUCN Red list of threatened species Available at - http://www.iucnredlist.org/

Page last updated on:2009-08-12

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