Trachinus draco. Greater weever 2019-12-07

Greater Weever

Trachinus draco

The most common prey that could be identified to the rank of species, were decapods namely Liocarcinus depurator and Galathea strigosa and mysids namely Anchialina agilis. The other two thirds of their length lies free along the operculum. During the night time the greater weever is believed to swim around freely, even pelagically. Utilized fresh and frozen; can be pan-fried, broiled, boiled and baked Ref. The largest female found by Ak et al. The head is compact flat and relatively big and the eyes sit almost on top of it. The green colouration consists of alternating light and dark stripes and is interrupted by a bright blue network of strips throughout the entire body.

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WoRMS

Trachinus draco

The anal fin has 2 spiny rays and 28-34 fleshy soft rays; it starts far forward and is longer than the second dorsal fin. Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. The reproduction of the Greater Weever takes place from June to August. Six of the genus representatives inhabit the waters of Eastern , but only one, , inhabits the South-Eastern. Those characteristics could be retraced to said single protein component.

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WoRMS

Trachinus draco

Behaviour and Conservation of Littoral Fishes: 33—69. The mechanism of envenomation is quite similar to that of the opercular spines. Subsequent the feeding activity of T. On sandy, muddy or gravelly bottoms, from a few meters to about 150 m. . Life cycle and mating behavior Maturity Spawning Fecundity. The flank is hued in a yellowish brown with bright blue and yellow discontinuous stripes that run crooked to the front of the fish.

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ITIS Standard Report Page: Trachinus draco

Trachinus draco

The supporting cells most probably play a role in the cohesiveness of the venom gland and in the regeneration of the glandular cells. European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Faune et flore du littoral du Nord, du Pas-de-Calais et de la Belgique: inventaire. These effects might be related to the high concentrations of histamines and catecholamines found in the venom. When diving in the Canaries you can observe them quiet often in certain locations.

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weever

Trachinus draco

There are in fact cases reported, in which victims of a weever sting were still affected by it after a period of 4 months, even if this seems to be a rare scenario. Greater Weever — Trachinus draco Description The body of Trachinus draco is laterally flattened and elongated with a greenish colouration. The caudal fin 2-15-2 has a slightly sunken margin. Jaws, vomer and palatine are provided with different rows of equal and very thin teeth. However, they are a little shy and swim off if you do rapid movements or get to close. Faszinierende Unterwasserwelt des Mittelmeeres : Einblicke in die Meeresbiologie küstennaher Lebensräume 2.

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WoRMS

Trachinus draco

Because of these spines and its potent venom it is classified as one of the most venomous fishes in the Mediterranean. The first dorsal fin has a triangular shape and is composed of 5-6 7 sturdy ducted spines and connected to venom glands. On the other hand, the share of cephalopods and fishes increased with fish size. It remains motionless in the sand, until the right prey passes. Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis.

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Greater weever

Trachinus draco

It has been found in depths of up to 150m. Under such conditions the minimal lethal dose for mice was 1. Trachinus draco is mostly and notoriously known for its venomous spines that can inflict serious injuries on humans through accidental stinging. However, it is not a legal authority for statutory or regulatory purposes. The first, the shorter one, is stacked with poisonous spines. For further information on U. The dorsal spines are all bent very slightly towards the tail of the fish.

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greater weever

Trachinus draco

In a reported case from 1782, a fisherman who had been stung, amputated his own finger to relieve the pain. Greater Weever — Trachinus draco The Greater Weever is a species in the order of the Perciformes and thus belongs to the superclass of. Collection Patrimoines Naturels, 50: pp. The ventral 1 spiny ray and 5 soft is inserted in a jugular position. The second dorsal fin is long with 27-34 soft and fleshy rays. The venom glands are cased in connective tissue coated with a basal lamina which has a length of 0.

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