Pelagic stingray
| Pelagic stingray | ||||||||||||
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Pelagic stingray ( Pteroplatytrygon violacea ) |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Pteroplatytrygon | ||||||||||||
| Fowler , 1910 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Pteroplatytrygon violacea | ||||||||||||
| ( Bonaparte , 1832) |
The pelagic stingray ( Pteroplatytrygon violacea ) is a little-known ray that is probably widespread in almost all tropical and subtropical seas. There are sightings and catches from the coast of the southern Mediterranean , from Sicily , from Cape Verde in the eastern Atlantic, from the tropical western Atlantic and from the eastern Pacific of Vancouver , the coast of California , Baja California and the Galapagos Islands .
features
The pelagic stingray is a maximum of 1.60 meters long with a body disc diameter of 59 cm. Usually it stays at a length of 1.10 meters. The body disk is thick and has the shape of a diamond rounded at the front. It is monochrome purple, purple or dark blue-green on the top and bottom, without any pattern, and has no thorns. The eyes do not protrude. The long tail is shorter than twice the length of the body disk and has a low caudal fin that ends well before the tip of the tail. The tail usually has a very long venomous stinger.
Way of life
Little is known about the way of life of the pelagic stingray. It lives in the open ocean in water depths of one to a maximum of 380 meters, usually down to 100 meters. It is probably the only fully pelagic representative of the stingrays . It feeds on jellyfish , comb jellyfish , cephalopods , pelagic crustaceans, and fish. Like all stingrays, the pelagic stingray is ovoviviparous .
literature
- Kent E. Carpenter, Volker H. Niem: The Living Marine Resources of the Western Central Pacific. Volume 3 Batoid fishes, chimaeras and Bony fishes part 1 (Elopidae to Linophrynidae). Rome, 1999, ISSN 1020-6868
Web links
- Pelagic stingray on Fishbase.org (English)
- Pteroplatytrygon violacea inthe IUCN 2013 Red List of Threatened Species . Posted by: Baum, J., Bianchi, I., Domingo, A., Ebert, DA, Grubbs, RD, Mancusi, C., Piercy, A., Serena, F. & Snelson, FF, 2007 . November 2013.