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Greater weever

Trachinus draco
Davart il num: The word "weever" is thought to come from the Anglo-Saxon word "wivre", meaning "viper".1
Dovra in mediBetg tutgarDarar mortal, ma sche sias spinas ta furan, va tar in medi.
Peschs tissientads Spinas tissientadasMangia: Charn
Privel per umans: GravSche sias spinas ta furan, va tar in medi. Cas da mort èn fitg rars.

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

Viva en
Eastern Atlantic from Norway to Morocco, plus the Mediterranean, Aegean and Black Seas1
Ocean Atlantic, Mar Mediterran, Mar dal Nord
Pagina iniziala
It lives in water from shallow depths down to 150 m, mostly over muddy or sandy sea floors. In shallow water it hides in fine sand, where bathers may step on it or fall onto it, especially in summer.1
Lunghezza
9,5 cm fin 40 cm (3,7 in fin 1,3 ft)1
Paisa
5,3 g fin 1,7 kg (0,2 oz fin 3,8 lb)1
Sveltezza maximala
circa 6 km/h (3,7 mph)
Nudar, stima approximativa
Tge mangia el?
It is an ambush predator that waits buried in sand during the day, with only its eyes and the tip of its dorsal fin showing. It attacks prey that come close in a swift, sudden movement, mainly small fish, decapods and mysids.1
Propi!Foto da Greater weever
Greater weever. Foto: Tomasz Sienicki [user: tsca, mail: tomasz.sienicki at gmail.com]. CC BY 1.0, Wikimedia Commons.

Co renconuscher el

  • 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

Forza dal tissi

Spinas tissientadas

Spinas pizzadas portan il tissi. Sch'ins passa sin el u al piglia, fa quai mal.

Tge fa ses tissi?

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

Quant privlus è el per umans?

Privel per umans: GravSche sias spinas ta furan, va tar in medi. Cas da mort èn fitg rars.

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

Sche sias spinas ta furan

  • Metta la plaja en aua chauda, uschè chauda sco che la persuna po supportar senza sa brischar (emprova cun tes agen maun), durant 30 fin 90 minutas. Tschertga agid medicinal, surtut tar peschs crap e rajas.

Clama adina l'emprim tes numer d'urgenza (112, 000, 911). Quai è in cussegl general d'emprim agid, betg in cussegl medicinal. Basa da l'emprim agid

Resta en segirezza

  • Na tutga, na piglia e na tizza mai in animal selvadi, gnanc in pitschen, ed era sch'el para da durmir u d'esser mort.
  • Dà spazi a l'animal. Sche ti scuntras in, resta calm, va plaun enavos e lascha ir el per sia via.
  • Sche sias spinas ta furan: resta calm, na ta mova betg, clama tes numer d'urgenza (112, 000, 911) u va spert en in ospital. Ta regorda co ch'el veseva or, ina foto gida.

El n'ha betg quai sin tai. El dovra ses tissi per pigliar nutriment u per sa defender, e sa zuppa bler pli gugent. Dapli davart la segirezza

Nua sin il mund?

AfricaAsiaEuropaAmerica dal NordAmerica dal SidAustralia ed OceaniaOcean AtlanticMar MediterranMar dal Nord

Quant grond è el?

Quant lung è el?

Greater weever circa 40 cm lung (1,3 ft)Ina banana circa 18 cm (7,1 in)In giat da chasa circa 50 cm (1,6 ft)

Quant grev è el?

uschè grev sco 14 bananas
uschè lung sco 12 bluccs da construcziun in suenter l'auterpudess nudar la lunghezza d'in grond bassin (50 m) en 30 secundas

Quant grond è Greater weever cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn memorisà u tramess.

Quant svelt è el?

bun da savair

Fatgs

1

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

2

It is classed as one of the most venomous fishes in the Mediterranean.1

3

The record weight is 1.74 kg, for a specimen caught off La Gomera in the Canary Islands in 2005.1

4

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

Destructur da mits

Mit: A weever sting is often thought to be fatal because of the venom itself.

Vardad: Reported fatal accidents are widely believed to be caused by secondary infections and sepsis rather than the toxin itself.1

Per experts da tissi

Num scientific
Trachinus draco
Gruppa
Peschs tissientads
Famiglia
Trachinidae2
Urden
Perciformes
Continents
Ocean Atlantic, Mar Mediterran, Mar dal Nord, Ils oceans
Poppins
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
Privel per umans
3 / 5: Grav3

Da nua che vegnan ils fatgs

  1. Greater weever (Wikipedia (CC BY-SA 4.0))
  2. Trachinus draco (iNaturalist): nums e classificaziun.
  3. Venom Wiki: il stgalim da privel, la grondezza tipica e la stima da la sveltezza èn noss agens. Guarda co che nus als calculain: Co che nus valitain il privel.

Mintga fatg sin questa pagina ha in numer che renvia a sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans d'animals, betg ina revista scientifica. Scriva a nus a [email protected] e nus curregin.

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