Shagreen rays
| Shagreen rays | ||||||||||||
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Chagrin Ray ( Leucoraja fullonica ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Leucoraja fullonica | ||||||||||||
| ( Linnaeus , 1758) |
The shagreen ray ( Leucoraja fullonica ) is a species of ray found in the eastern North Atlantic .
features
The shagreen rays reach a body length of a maximum of 110 (females) to 120 centimeters (males). It has the typical ( dorsoventral ) flattened body for rays , which has the shape of a diamond . The snout is pointed. The top is a solid ash gray color, the bottom is white. The inner edge of the eye is lined with a row of usually 8 thorns, 3 to 9 more are in a row in the middle of the neck. Two more rows, each with about 50 spines, are located to the right and left of the midline from the shoulder region to the first dorsal fin in the rear part of the tail.
distribution
The chagrin ray lives benthal (on the continental shelf ) in the northeast Atlantic and its tributaries. The distribution area extends from the Russian Murmansk over the coast of Norway, the Faroe Islands and the south coast of Iceland, the deeper northern North Sea and the Skagerrak ( Norwegian Channel ) south to the coast of Morocco and also includes the western Mediterranean in the north to the west coast of Greece in the south to Tunisia, as well as the coast of Madeira . The ray stays in relatively cold water at depths of 30 to 550 meters, in the south of the distribution area at greater depths.
Way of life
The shagreen ray feeds on ground-dwelling animals, but prefers fish. Like the other real rays (Rajidae), the shagreen ray is not viviparous. The females lay about 7.5 to 9.9 inches long and 4.5 to 4.7 cm wide egg capsules with long appendages at the corners.
Danger
In the IUCN Red List , the shark ray is classified as "Near Threatened" (potentially endangered).
literature
- Bent J. Muus, Jørgen G. Nielsen: The marine fish of Europe in the North Sea, Baltic Sea and Atlantic. Kosmos, Stuttgart 1999, ISBN 3-440-07804-3 .
Individual evidence
- ↑ Leucoraja fullonica in the endangered Red List species the IUCN 2009. Posted by: Ellis, J., Ungaro, N., Serena, F., Dulvy, N., Tinti, F., Bertozzi, M., Pasolini, P. , Mancusi, C. & Notarbartolo di Sciara, G., 2006. Retrieved April 14, 2014.
Web links
- Chagrin rays on Fishbase.org (English)