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Ikhathuni ka-Greater weever
Inombolo 1206 kwezi-1 402

Greater weever

Trachinus draco
Malunga negama: The word "weever" is thought to come from the Anglo-Saxon word "wivre", meaning "viper".1
Kufuna ugqirhaMusa ukuchukumisaKunqabile ukuba sibulale, kodwa ukuba amava aso ayakugwaza, yiya kugqirha.
Iintlanzi ezinetyhefu Amava anetyhefuSitya: Inyama
Ingozi ebantwini: Kubi kakhuluUkuba amava aso ayakugwaza, yiya kugqirha. Ukufa kunqabe kakhulu.

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

Sihlala
Eastern Atlantic from Norway to Morocco, plus the Mediterranean, Aegean and Black Seas1
uLwandlekazi lweAtlantiki, uLwandle lweMeditera, uLwandle lwaseMntla (North Sea)
Ekhaya
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
Ubude
9,5 cm ukuya ku-40 cm (3,7 in ukuya ku-1,3 ft)1
Ubunzima
5,3 g ukuya ku-1,7 kg (0,2 oz ukuya ku-3,8 lb)1
Esona santya siphezulu
malunga ne-6 km/h (3,7 mph)
Ukuqubha, uqikelelo nje
Sitya ntoni?
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
Ngokwenene!Ifoto ka-Greater weever
Greater weever. Ifoto: Tomasz Sienicki [user: tsca, mail: tomasz.sienicki at gmail.com]. CC BY 1.0, Wikimedia Commons.

Indlela yokusiqaphela

  • 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

Amandla etyhefu yokuluma nokuhlaba

Amava anetyhefu

Amava abukhali aphethe ityhefu. Ukusinyathela okanye ukusibamba kubuhlungu.

Ityhefu yaso yokuluma okanye yokuhlaba yenza ntoni?

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

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: Kubi kakhuluUkuba amava aso ayakugwaza, yiya kugqirha. Ukufa kunqabe kakhulu.

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

Ukuba amava aso ayakugwaza

  • Faka inxeba emanzini ashushu, ashushu kangangoko umntu angakwazi ukunyamezela ngaphandle kokutshiswa (wavavanye ngesandla sakho), imizuzu engama-30 ukuya kwengama-90. Fumana uncedo lwezonyango, ingakumbi kwii-stonefish nakwii-stingray.

Soloko utsalela inombolo kaxakeka kuqala (112, 000, 911). Esi sisikhokelo soncedo lokuqala ngokubanzi, asilocebiso lwezonyango. Iziseko zoncedo lokuqala

Hlala ukhuselekile

  • Ungaze uchukumise, ubambe okanye uqhule isilwanyana sasendle, nokuba sincinci, kwaye nokuba sibonakala silele okanye sifile.
  • Sinike indawo. Ukuba udibana naso, hlala uzolile, buyela umva kancinci kwaye usiyeke sihambe ngendlela yaso.
  • Ukuba amava aso ayakugwaza: hlala uzolile, musa ukushukuma, tsalela inombolo kaxakeka (112, 000, 911) okanye uye esibhedlele ngokukhawuleza. Khumbula ukuba sasikhangeleka njani, ifoto iyanceda.

Asikuzingeli. Sisebenzisa ityhefu yaso ukubamba ukutya okanye ukuzikhusela, kwaye singakhetha ukuzimela. Okungakumbi malunga nokuhlala ukhuselekile

Phi emhlabeni?

IAfrikaIAsiyaIYurophuuMntla MelikauMzantsi MelikaIOstreliya neOceaniauLwandlekazi lweAtlantikiuLwandle lweMediterauLwandle lwaseMntla (North Sea)

Sikhulu kangakanani?

Side kangakanani?

Greater weever malunga ne-40 cm ubude (1,3 ft)Ibhanana malunga ne-18 cm (7,1 in)Ikati yasekhaya malunga ne-50 cm (1,6 ft)

Sinzima kangakanani?

ubunzima obulingana neebhanana eziyi-14
ubude obulingana neebhloko zokudlala zokwakha eziyi-12 zilandelelanasingaqubha ubude bechibi elikhulu lokuqubha (50 m) ngemizuzwana eyi-30

U-Greater weever mkhulu kangakanani xa uthelekisa NAWE?

Zizibalo nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwa naphi na.

Sikhawuleza kangakanani?

kufanelekile ukwazi

Iinyaniso

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

Umqhekezi weentsomi

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

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

Kwiingcali zetyhefu

Igama lenzululwazi
Trachinus draco
Iqela
Iintlanzi ezinetyhefu
Usapho
Trachinidae2
Ucwangco
Perciformes
Amazwekazi
uLwandlekazi lweAtlantiki, uLwandle lweMeditera, uLwandle lwaseMntla (North Sea), Iilwandlekazi
Iintsana
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
Ingozi ebantwini
3 / 5: Kubi kakhulu3

Apho iinyaniso zivela khona

  1. Greater weever (Wikipedia (CC BY-SA 4.0))
  2. Trachinus draco (iNaturalist): amagama nokuhlelwa.
  3. Venom Wiki: inqanaba lengozi, ubungakanani obuqhelekileyo noqikelelo lwesantya zezethu. Bona indlela esizifumana ngayo: Indlela esilinganisa ngayo ingozi.

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