Undulate ray (Raja undulata)
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General data

Main name: Undulate ray
Climates: Subtropical, Temperate
Habitat: Saltwater
Native: Africa, Europe, Asia
Distribution: Mediterranean Sea, Atlantic Ocean

Classification

Genus: Raja - Raja
Family: Rajidae - Skates
Order: Rajiformes - Skates and rays
Class: Elasmobranchii - Sharks and Rays
Superclass: Chondrichthyes - Cartilaginous fishes

Description

The undulate ray (Raja undulata) is a species of ray and cartilaginous fish found in the Mediterranean and East Atlantic from southern Ireland and England to the Gulf of Guinea. It is found in areas with mud or sand, and may occur as deep as 200 m (660 ft), though it prefers shallower depths. It is considered endangered due to overfishing. The undulate ray features a disc-shaped body, triangular in the front and near-circular in the rear, and dermal denticles developed as spines for protection. Median spines are scattered in adults, regular on young. The males have one lateral row each side, whereas the females have three. The eyes are medium-sized and followed by spiracles. The mouth is on the ventral surface and is slightly arched, followed by the five pairs of small gill slits. Tail is as long as body, and has two well separated dorsal fins near its end, usually with two spines between them. The coloring of the dorsal surface varies from light brown to citrine or grey, with darker waved bands and numerous small white patches. Snout and margins are frequently clearer with dark spots. The underside is creamy-white with a greyish margin. It typically weighs about 10 lb (4.5 kg), but can reach to as much as 22.13 lb (10.04 kg) and 100 cm (39 in) in length. This species has a patchy and discontinuous distribution in northeastern Atlantic. It is found from southern Ireland and England to Senegal, and in the western Mediterranean. It is uncommon overall but can be locally abundant, mainly around the north-west of Ireland, in the eastern side of the English Channel, and near the south coast of Portugal. It is also present sporadically across the northern Mediterranean Sea. It is usually found on sandy, muddy or detrital bottoms, at depths of 50–200 m from coastal regions to the upper continental slope, even if it is sometimes possible to find it in shallower water.

Undulate ray (Raja undulata)
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General data

Classification

Description

Catches

Taxonomy of Fishes

Undulate ray (Raja undulata)Follow

General data

Classification

Description

Catches

Taxonomy of Fishes

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Undulate ray (Raja undulata)
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