Greater weever
The greater weever is a small sea fish that buries itself in shallow sand along the eastern Atlantic coast and in the Mediterranean and Black Seas. Its spines carry a venom that causes intense pain, so it is one of the most dangerous fishes in the Mediterranean for swimmers.1

Como recoñecelo
- Elongated, flattened body with a mouth that points upwards and a lower jaw longer than the upper jaw1
- Large, flat head with the eyes sitting almost on top of it1
- Greenish brown colour with several dark marks on the upper side of the head1
- Yellowish brown flanks with bright blue and yellow broken stripes, plus oblique black stripes along the sides that look tiger-like1
- Venomous spines on the first dorsal fin and on each gill cover1
Poder da pezoña
Ten espiñas afiadas que levan a pezoña. Pisalo ou collelo doe.
Que fai a súa pezoña?
The venom contains a large protein called Dracotoxin, which can be lethal in high enough doses. It damages cell membranes, and the sting is followed by a short period of tissue changes around the wound. The best-known effect is excruciating pain that begins shortly after the sting and can last from a few hours to days.1
Que perigoso é para as persoas?
Perigo para as persoas: GraveSe as súas espiñas se che cravan, vai ao médico. As mortes son moi raras.The most common incident happens when a bather steps, jumps or falls onto a buried greater weever in shallow water, especially in summer. Fishermen handling fish caught in nets are also at risk. The pain can reach 10 out of 10 on the numeric rating scale, and some stings have caused pain for months, though this is rare. Reported fatal accidents exist, but these are widely believed to be due to secondary infections and sepsis rather than the toxin itself.1
Se as súas espiñas se che cravan
- Mete a ferida en auga quente, tan quente como a persoa poida aguantar sen queimarse (próbaa coa túa propia man), durante 30 a 90 minutos. Busca axuda médica, sobre todo no caso dos peixes pedra e das raias con ferrete.
Chama sempre primeiro ao teu número de emerxencias (112, 000, 911). Isto son consellos xerais de primeiros auxilios, non consello médico. Primeiros auxilios básicos
Mantente a salvo
- Nunca toques, collas nin molestes un animal salvaxe, aínda que sexa pequeno e aínda que pareza durmido ou morto.
- Déixalle espazo. Se atopas un, mantén a calma, recúa amodo e déixao ir polo seu camiño.
- Se as súas espiñas se che cravan: mantén a calma, non te movas, chama ao teu número de emerxencias (112, 000, 911) ou vai rápido a un hospital. Lembra como era, unha foto axuda.
Non vai a por ti. Usa a súa pezoña para cazar comida ou para defenderse, e prefire con moito agocharse. Máis sobre como estar a salvo
En que lugar do mundo?
Que tamaño ten?
Canto mide?
Canto pesa?
mide coma 12 pezas de construción de xoguete en fila
podería nadar o longo dunha piscina grande (50 m) en 30 segundosQue tamaño ten Greater weever comparado CONTIGO?
Só son contas no teu navegador. Non se garda nin se envía nada a ningures.
Que rápido é?
Datos
Its venom glands sit in the skin, and the sting works through a groove along each spine that carries the venom into the wound.1
It is classed as one of the most venomous fishes in the Mediterranean.1
The record weight is 1.74 kg, for a specimen caught off La Gomera in the Canary Islands in 2005.1
Its diet changes with size: small mysids are the most common prey for fish under 20 cm, while cephalopods and fish make up a bigger share of the diet in larger fish.1
Desmontamitos
Mito: A weever sting is often thought to be fatal because of the venom itself.
Verdade: Reported fatal accidents are widely believed to be caused by secondary infections and sepsis rather than the toxin itself.1
Para expertos en pezoñas
- Nome científico
- Trachinus draco
- Grupo
- Peixes pezoñentos
- Familia
- Trachinidae2
- Orde
- Perciformes
- Continentes
- Océano Atlántico, Mar Mediterráneo, Mar do Norte, Os océanos
- Crías
- It is egg-laying and releases its eggs into open water, where each egg is 4.8–6.8 mm across and hatches after about three months. It is not known to provide any parental care.1
- Perigo para as persoas
- 3 / 5: Grave3
De onde veñen os datos
- Greater weever (Wikipedia (CC BY-SA 4.0))
- Trachinus draco (iNaturalist): nomes e clasificación.
- Venom Wiki: o nivel de perigo, o tamaño típico e a velocidade estimada son nosos. Mira como os calculamos: Como valoramos o perigo.
Cada dato desta páxina ten un número que leva á súa fonte. Se nos equivocamos nalgo, sentímolo, somos fans dos animais, non unha revista científica. Dínolo en [email protected] e arranxarémolo.
Espiñas pezoñentas
