Caribbean sea sow

Caribbean sea sow
	Caribbean sea sow ( Oxynotus carribbaeus )
Systematics
without rank:	Sharks (selachii)
Superordinate :	Squalomorphii
Order :	Spiny dogfish (Squaliformes)
Family :	Pig sharks (Oxynotidae)
Genre :	Pig sharks ( Oxynotus )
Type :	Caribbean sea sow
Scientific name
	Oxynotus carribbaeus
	Cervigón , 1961

The Caribbean Roughshark ( Oxynotus carribbaeus ) is a type of oxynotus (Oxynotidae) within the Dornhaiartigen (Squaliformes).

features

The Caribbean sea sow reaches a body length of no more than 50 centimeters. Like all species of the family, it has a very high-backed body with a triangular cross-section, so that there are lateral keels between the pectoral and pelvic fins. The color of the sharks is uniformly gray to brown and it has a pattern of dark bands on a light background on the body as well as large and small dark spots on the head, body, tail and fins. Above the pectoral and pelvic fins, these patterns are each interrupted by a light band.

The muzzle is short and blunt. The two dorsal fins are very high and sail-like with a triangular tip and concave back; the spine in front of the first dorsal fin points forward. One anal fin is missing. There is a small and round spray hole in front of the gills .

distribution and habitat

Distribution area of the Caribbean sea sow.

The Caribbean sea sow has been recorded in the western Atlantic in the Gulf of Mexico and off the coast of Venezuela .

The shark lives above the area of the continental shelf and on the continental slopes near the bottom at a depth of about 400 to 450 meters.

Way of life

There is no information about the way of life of this species. The shark likely feeds on bottom-dwelling invertebrates and smaller fish. The high-backed shape represents an adaptation to the sharks' way of life near the ground.

Like other species of the genus , it is probably viviparous ( ovoviviparous ), but does not form a yolk sac placenta .

Hazard and protection

The Caribbean sea sow is not deliberately fished commercially, but like other sharks it can be caught as bycatch in trawling . Specific catch data are not available for this species. Due to the limited amount of data available, the shark is classified as “data deficient” in the IUCN's Red List of Endangered Species .

supporting documents

^ ^A ^b ^c ^d Leonard Compagno, Marc Dando, Sarah Fowler: Sharks of the World . Princeton University Press, Princeton and Oxford 2005, ISBN 978-0-691-12072-0 , pp. 122-123.
↑ ^a ^b ^c Oxynotus caribbaeus in the endangered Red List species the IUCN 2011. Posted by: Leandro, L. (SSG South America Regional Workshop, June 2003), 2003. Accessed November 8 2011th
↑ Prickly Dogfish, Oxynotus bruniensis (Ogilby, 1893) Australien Museum, accessed on March 20, 2011. There related to Oxynotus bruniensis , but directly transferable to other species.

literature

Leonard Compagno , Marc Dando, Sarah Fowler: Sharks of the World . Princeton University Press , Princeton and Oxford 2005, ISBN 978-0-691-12072-0 , pp. 122-123.

Web links

Commons : Caribbean sea sow ( Oxynotus caribbaeus ) - Collection of images, videos and audio files

Caribbean sea sow on Fishbase.org (English)

[Compagno-1] A ^b ^c ^d Leonard Compagno, Marc Dando, Sarah Fowler: Sharks of the World . Princeton University Press, Princeton and Oxford 2005, ISBN 978-0-691-12072-0 , pp. 122-123.

[IUCN-2] Oxynotus caribbaeus in the endangered Red List species the IUCN 2011. Posted by: Leandro, L. (SSG South America Regional Workshop, June 2003), 2003. Accessed November 8 2011th

[Australian_Museum-3] Prickly Dogfish, Oxynotus bruniensis (Ogilby, 1893) Australien Museum, accessed on March 20, 2011. There related to Oxynotus bruniensis , but directly transferable to other species.