Florida torpedo

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Yzx (talk | contribs) at 04:59, 13 October 2008. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Florida torpedo
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
Species:
T. andersoni
Binomial name
Torpedo andersoni
Bullis, 1962

The Florida torpedo, Torpedo andersoni, is a rare species of electric ray in the family Torpedinidae, notable for well-developed electric organs capable of delivering a strong shock. It is only known from two specimens collected from a depth of 229 meters on the upper continental slope on the western edge of the Grand Bahama Bank in the Florida Straits, a photograph from a depth of 11 meters at Grand Cayman Island,[1] and two sightings from a depth of 18 meters at San Andreas Island in the southwestern Caribbean Sea. The observations at Grand Cayman and San Andreas took place amongst scattered coral.[2]

Like other Torpedo species, the Florida torpedo has a relatively circular pectoral fin disc, two dorsal fins with the first larger than the second, and a stout tail. It is distinguished from the Atlantic torpedo (T. nobiliana), the only other Torpedo species in the central and western Atlantic Ocean, by its coloration: yellowish above with small brownish-red blotches, and light cream below. In addition, it has papillae around its spiracle, and the base of its first dorsal fin does not extend past the base of its pelvic fins. The two known specimens are 16 and 22 cm long; the maximum size is reported to be 32 cm.[2] It is presumably ovoviviparous.[3] Potential threats to the Florida torpedo include demersal trawling fisheries and tourism-related development, although no data is available to assess its population status.[1]

References

  1. ^ a b Herndon, A.P. & Burgess, G.H. 2005. Torpedo andersoni. 2006 IUCN Red List of Threatened Species. Retrieved on 03 August 2007.
  2. ^ a b Navia, A. F. Mejia-Falla, P. A. Caicedo, J. A. and De Carvalho, M. R. (2006). "First Record of Torpedo andersoni Bullis, 1962 (Elasmobranchii: Torpediniformes) in the Western Caribbean Region of Colombia" (PDF). Caribbean Journal of Science. 42 (2): 259–260. Retrieved 2008-10-12.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. ^ Froese, Rainer; Pauly, Daniel (eds.) (2008). "Torpedo andersoni" in FishBase. October 2008 version.