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Setshwantsho sa khathune sa Greater weever
No. 1206 ho 1 402

Greater weever

Trachinus draco
Ka lebitso: The word "weever" is thought to come from the Anglo-Saxon word "wivre", meaning "viper".1
E hloka ngakaO se ke wa amaHa e atise ho bolaya, empa haeba meutlwa ya yona e o hlaba, eya ho ngaka.
Ditlhapi tse nang le chefo Meutlwa e nang le chefoE ja: Nama
Kotsi ho batho: E tebilengHaeba meutlwa ya yona e o hlaba, eya ho ngaka. Lefu le etsahala ka seoelo haholo.

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

E phela
Eastern Atlantic from Norway to Morocco, plus the Mediterranean, Aegean and Black Seas1
Lewatle la Atlantic, Lewatle la Mediterranean, Lewatle la Leboya
Lapeng
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
Bolelele
9,5 cm ho isa ho 40 cm (3,7 in ho isa ho 1,3 ft)1
Boima
5,3 g ho isa ho 1,7 kg (0,2 oz ho isa ho 3,8 lb)1
Lebelo le phahameng
e ka bang 6 km/h (3,7 mph)
Ho sesa, kakanyo feela
E ja eng?
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
Ka nnete!Foto ya Greater weever
Greater weever. Foto: Tomasz Sienicki [user: tsca, mail: tomasz.sienicki at gmail.com]. CC BY 1.0, Wikimedia Commons.

Ho e tseba jwang

  • 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

Matla a chefo

Meutlwa e nang le chefo

Meutlwa e bohale e nka chefo. Ho e hata kapa ho e tshwara ho bohloko.

Chefo ya yona (eo e e kenyang ka ho loma kapa ho hlaba) e etsang?

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

E kotsi hakae ho batho?

Kotsi ho batho: E tebilengHaeba meutlwa ya yona e o hlaba, eya ho ngaka. Lefu le etsahala ka seoelo haholo.

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

Haeba meutlwa ya yona e o hlaba

  • Kenya leqeba metsing a tjhesang, a tjhesang hoo motho a ka a mamellang ntle le ho tjha (a leke ka letsoho la hao pele), metsotso e 30 ho isa ho e 90. Fumana thuso ya bongaka, haholoholo bakeng sa di-stonefish le di-stingray.

Kamehla letsetsa nomoro ya tshohanyetso pele (112, 000, 911). Ena ke tataiso e akaretsang ya thuso ya pele, hase keletso ya bongaka. Metheo ya thuso ya pele

Dula o bolokehile

  • O se ke wa ama, wa tshwara kapa wa tena phoofolo ya naheng, leha e le e nyenyane, le leha e shebahala e robetse kapa e shwele.
  • E fe sebaka. Ha o kopana le yona, dula o kgutsitse, kgutlela morao butle mme o e tlohele e tsamaye ka tsela ya yona.
  • Haeba meutlwa ya yona e o hlaba: dula o kgutsitse, o se ke wa sisinyeha, letsetsa nomoro ya tshohanyetso (112, 000, 911) kapa o ye sepetlele kapele. Hopola hore e ne e shebahala jwang, foto e a thusa.

Ha e o batle. E sebedisa chefo ya yona ho tshwara dijo kapa ho itshireletsa, mme e kgetha ho ipata. Ho eketsehileng ka ho dula o bolokehile

Hokae lefatsheng?

AfrikaAsiaYuropaAmerika LeboyaAmerika BorwaAustralia le OceaniaLewatle la AtlanticLewatle la MediterraneanLewatle la Leboya

E kgolo hakae?

E telele hakae?

Greater weever bolelele ba e ka bang 40 cm (1,3 ft)Banana e ka bang 18 cm (7,1 in)Katse ya lapeng e ka bang 50 cm (1,6 ft)

E boima hakae?

e boima jwaloka dibanana tse 14
e telele jwaloka diboloko tsa ho bapala tse 12 molenge ka sesa bolelele ba letangwane le leholo la ho sesa (50 m) ka metsotswana e 30

Greater weever e kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ka hara sebatli sa hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E potlaka hakae?

ho molemo ho tseba

Dintlha

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

Ho senya ditshomo

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

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

Bakeng sa ditsebi tsa chefo

Lebitso la saense
Trachinus draco
Sehlopha
Ditlhapi tse nang le chefo
Lelapa
Trachinidae2
Tatelano
Perciformes
Dikontinente
Lewatle la Atlantic, Lewatle la Mediterranean, Lewatle la Leboya, Mawatle
Masea
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
Kotsi ho batho
3 / 5: E tebileng3

Moo dintlha di tswang teng

  1. Greater weever (Wikipedia (CC BY-SA 4.0))
  2. Trachinus draco (iNaturalist): mabitso le tlhophiso.
  3. Venom Wiki: boemo ba kotsi, boholo bo tlwaelehileng le kakanyo ya lebelo ke tsa rona. Bona kamoo re di balang ka teng: Kamoo re lekanyang kotsi ka teng.

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