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Greater weever

Trachinus draco

Kuhusu jina: The word "weever" is thought to come from the Anglo-Saxon word "wivre", meaning "viper".1

Anahitaji daktariUsiguseMara chache huua, lakini miiba yake ikikuchoma, nenda kwa daktari.

Samaki wenye sumu

Miiba yenye sumuHula: Nyama

Hatari kwa watu: MbayaMiiba yake ikikuchoma, nenda kwa daktari. Vifo ni nadra sana.

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

Anaishi

Eastern Atlantic from Norway to Morocco, plus the Mediterranean, Aegean and Black Seas1

Bahari ya Atlantiki, Bahari ya Mediterania, Bahari ya Kaskazini

Nyumbani

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

Urefu

9.5 cm hadi 40 cm (3.7 in hadi 1.3 ft)1

Uzito

5.3 g hadi 1.7 kg (0.2 oz hadi 3.8 lb)1

Kasi ya juu

takriban km 6 kwa saa (maili 3.7 kwa saa)

Kuogelea, makadirio

Hula nini?

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

Picha ya Greater weever — Greater weever. Picha: Tomasz Sienicki [user: tsca, mail: tomasz.sienicki at gmail.com]. CC BY 1.0, Wikimedia Commons.

Jinsi ya kumtambua

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

Nguvu ya sumu

Miiba yenye sumu

Miiba mikali hubeba sumu. Kumkanyaga au kumshika kunauma.

Sumu yake hufanya nini?

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

Ana hatari gani kwa watu?

Hatari kwa watu: MbayaMiiba yake ikikuchoma, nenda kwa daktari. Vifo ni nadra sana.

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

Miiba yake ikikuchoma

Weka jeraha kwenye maji ya moto, moto kiasi ambacho mtu anaweza kuvumilia bila kuungua (pima kwanza kwa mkono wako), kwa dakika 30 hadi 90. Tafuta msaada wa kitabibu, hasa kwa samaki-jiwe na taa.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
Miiba yake ikikuchoma: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

Afrika Asia Ulaya Amerika Kaskazini Amerika Kusini Australia na Oceania Bahari ya Atlantiki Bahari ya Mediterania Bahari ya Kaskazini

Ana ukubwa gani?

Ana urefu gani?

Ana uzito gani?

uzito sawa na ndizi 14

urefu sawa na matofali 12 ya kuchezea yaliyopangwa mstariangeweza kuogelea urefu wa bwawa kubwa (m 50) kwa sekunde 30

Greater weever ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

Mtu anayeogelea takriban km 3 kwa saa (1.9 mph)

Greater weever takriban km 6 kwa saa (3.7 mph)

Mwogeleaji wa Olimpiki takriban km 8 kwa saa (5 mph)

inafaa kujua

Ukweli

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

Kuvunja dhana potofu

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

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

Kwa wataalamu wa sumu

Jina la kisayansi: Trachinus draco
Kundi: Samaki wenye sumu
Familia: Trachinidae2
Mpangilio: Perciformes
Mabara: Bahari ya Atlantiki, Bahari ya Mediterania, Bahari ya Kaskazini, Bahari kuu
Watoto: 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
Hatari kwa watu: 3 / 5: Mbaya3

Ukweli unatoka wapi

Greater weever (Wikipedia (CC BY-SA 4.0))
Trachinus draco (iNaturalist): majina na uainishaji.
Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

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