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Short-tail stingray

Bathytoshia brevicaudata
O imenu: The scientific name Bathytoshia brevicaudata comes from the Latin words brevis (short) and cauda (tail), which refer to its short tail.1
Može ubitiBez liječenja te može ubiti. Ako te ubode, brzo potraži pomoć.
Otrovne ribe UbodiJede: Meso
Opasnost za ljude: Vrlo opasnoMože ubiti osobu koja ne dobije liječenje.

The short-tail stingray is one of the largest stingrays in the world. It lives in temperate seas off southern Africa, southern Australia and New Zealand, mostly on or near the sea floor. It is not aggressive, but its long venomous sting can cause a serious wound if the ray is startled.1

Živi u
Temperate waters of the Southern Hemisphere: southern Africa, southern Australia, including Tasmania, and New Zealand1
Indijski ocean, Tihi ocean, Koraljno more
Početna
It lives on the bottom in estuaries, sheltered bays, sandy flats, rocky reefs and the outer continental shelf, and sometimes swims up into open water. Off southern Africa it is usually found offshore, at depths of 180 to 480 m. Off Australia and New Zealand it can be found from the intertidal zone down to 156 m. At Hamelin Bay in Western Australia, many rays gather where visitors hand-feed them fish scraps.1
Duljina
4,3 m (14 ft)1
Težina
350 kg (772 lb)1
Najveća brzina
oko 30 km/h (19 mph)
Plivanje, gruba procjena
Što jede?
It eats bony fishes and invertebrates such as molluscs and crustaceans, including burrowing species. It finds buried bivalves and spoon worms by detecting the tiny water jets they produce, then sucks them out of the sediment. It also eats open-water animals such as salps and hyperiid amphipods.1
Stvarno!Fotografija: Short-tail stingray
Short-tail stingray. Fotografija: Alpha from Melbourne, Australia. CC BY-SA 2.0, Wikimedia Commons.

Kako ga prepoznati

  • Diamond-shaped, heavy disc that is smooth, with no scales (dermal denticles) on the disc even in adults1
  • Plain grey-brown back, darkening towards the tail and above the eyes, with a line of white pores on either side of the head1
  • Whitish underside, darkening towards the edges of the fins1
  • Tail usually shorter than the disc, thick at the base, with one or two serrated stinging spines about halfway along it1
  • Adults have a row of large, spear-like thorns in front of the sting1

Često se miješa s: The pitted stingray (Dasyatis matsubarai) of the northwestern Pacific looks similar but is smaller. Records of this species from northern Australia and Thailand are thought to be other rays that were misidentified.1

Otrovna snaga

Ubodi

Otrov izlazi kroz žalac.

Što radi njegov otrov kad ugrize ili ubode?

Its sting is venomous. The mucous sheath covering the sting contains a toxin that causes necrosis, which means the death of body tissue. The most dangerous injuries involve damage to a vital organ, heavy blood loss, or secondary infection (sepsis) or tetanus.1

Koliko je opasno za ljude?

Opasnost za ljude: Vrlo opasnoMože ubiti osobu koja ne dobije liječenje.

The short-tail stingray is not aggressive, but if startled or harassed it can inflict a serious and even fatal wound. Its sting can be over 30 cm long and can penetrate most footwear, including kevlar bootees. It is responsible for most stingray injuries off New Zealand, including the death of Australian naturalist Steve Irwin, who was pierced in the chest by its barbed tail.1

Što radi kad se uplaši?

When threatened, it raises its tail over its back like a scorpion, and a startled ray can leap through the water and strike with its tail.1

Ako ubode

  • Stavi ranu u vruću vodu, toliko vruću koliko osoba može podnijeti bez opeklina (provjeri je vlastitom rukom), na 30 do 90 minuta. Potraži liječničku pomoć, osobito kod ribe kamena i raža.

Uvijek prvo nazovi broj za hitne slučajeve (112, 000, 911). Ovo su opće upute za prvu pomoć, a ne liječnički savjet. Osnove prve pomoći

Ostani na sigurnom

  • Nikad ne diraj, ne hvataj i ne zadirkuj divlju životinju, čak ni malu, i čak ni ako izgleda kao da spava ili je mrtva.
  • Ostavi joj prostora. Ako je sretneš, ne paniči, polako se odmakni i pusti je da ode svojim putem.
  • Ako te neka ubode: ne paniči, miruj, nazovi broj za hitne slučajeve (112, 000, 911) ili brzo idi u bolnicu. Zapamti kako je izgledala, fotografija pomaže.

Ne želi ti ništa loše. Otrov koristi za lov hrane ili za obranu i mnogo bi se radije sakrilo. Više o sigurnosti

Koliko je veliko?

Koliko je dugo?

Short-tail stingray dugo oko 4,3 m (14 ft)Bicikl odrasle osobe oko 1,8 m (5,9 ft)Auto oko 4,5 m (15 ft)

Koliko je teško?

teško kao 18 pasa
dugo kao 4 pasa od nosa do repadugo kao 24 banana poredanih u nizumoglo bi preplivati dužinu velikog bazena (50 m) za 6 sekundi

Koliko je Short-tail stingray velika životinja u usporedbi s TOBOM?

Samo matematika u tvom pregledniku. Ništa se ne sprema niti šalje nikamo.

Koliko je brzo?

vrijedi znati

Činjenice

1

It can flap its pectoral fins with enough force to make a loud audible 'bang' in the water, although it is usually slow-moving.1

2

It is one of the largest stingrays in the world, and reliable observers off New Zealand have reported individuals almost 3 m across.1

3

Captive experiments suggest it can detect magnetic fields, which may help it navigate.1

4

Every summer, large groups gather under the rocky archways of the Poor Knights Islands off New Zealand, where both mating and birthing have been seen.1

5

Captive females have been observed mating with up to three different males in succession.1

Za stručnjake za otrove

Znanstveni naziv
Bathytoshia brevicaudata
Skupina
Otrovne ribe
Obitelj
Dasyatidae2
Redoslijed
Myliobatiformes
Kontinenti
Indijski ocean, Tihi ocean, Koraljno more, Oceani
Mladunci
It gives birth to live young. Females usually have litters of 6 to 10 pups in summer, and newborns measure 32 to 36 cm across.1
Kako mu ide u divljini
Least Concern (IUCN)1
Opasnost za ljude
4 / 5: Vrlo opasno3

Odakle su činjenice

  1. Short-tail stingray (Wikipedia (CC BY-SA 4.0))
  2. Bathytoshia brevicaudata (iNaturalist): imena i klasifikacija.
  3. Venom Wiki: razina opasnosti, tipična veličina i procijenjena brzina naše su. Pogledaj kako ih izračunavamo: Kako ocjenjujemo opasnost.

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