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Bat ray

Myliobatis californica

Maak net seerDit maak seer, maar dit sal jou nie ernstig skade doen nie.

StekeEet: Vleis

Gevaar vir mense: PynlikDit kan regtig seermaak, maar dit is amper nooit ernstig nie.

The bat ray is a flat, diamond-shaped fish related to sharks, with wing-like fins that it flaps to swim. It lives in shallow coastal waters from central Oregon in the USA down to the Gulf of California in Mexico, and around the Galápagos Islands. It has a venomous spine near the base of its tail, but it uses it only when it feels threatened.1

Leef in

Coastal waters from central Oregon (USA) to the Gulf of California (Mexico), and the Galápagos Islands area1

Stille Oseaan, Golf van Kalifornië

Tuis

Bat rays live in muddy or sandy sloughs, estuaries and bays, kelp beds, and rocky-bottomed shorelines. They are often found in flat, shallow water with sand patches between rocks. People can meet them in shallow sand, so walking there calls for care.1

Lengte

1,8 m (5,9 ft)1

Gewig

9,1 kg tot 91 kg (20 lb tot 201 lb)1

Topspoed

omtrent 22 km/h (14 mph)

Swem, rowwe skatting

Wat eet dit?

Bat rays eat molluscs, crustaceans and small fish from the seabed. They use their wing-like fins to move sand and expose prey, and may dig pits up to 20 cm deep with their snouts to reach buried clams. Their flat, pavement-like teeth crush shells, and the hard pieces are spat out while the soft parts are swallowed.1

Foto van Bat ray — Bat ray. Foto: Martin Holst Friborg Pedersen from Copenhagen S, Denmark. CC BY 2.0, Wikimedia Commons.

Hoe om dit te herken

Diamond-shaped body, with wing-like pectoral fins that end in blunt points1
Broad head raised higher than the fins, with eyes set on the sides of the head1
Dark back, black or dark brown, with a white underside1
Whip-like tail with at least one venomous spine at its base1
Usually two small cephalic horns (projections from the front of the head) used for pushing food into the mouth1

Gifkrag

Steke

Gif kom deur 'n angel uit.

Hoe gevaarlik is dit vir mense?

Gevaar vir mense: PynlikDit kan regtig seermaak, maar dit is amper nooit ernstig nie.

The bat ray is not considered dangerous to people. It uses its venomous tail spine only when it is attacked or frightened.1

Wat doen dit as dit bang is?

The bat ray camouflages itself in the sand and uses its tail spine only when attacked or frightened.1

As dit steek

Sit die wond in warm water, so warm as wat die persoon kan verdra sonder om te brand (toets dit met jou eie hand), vir 30 tot 90 minute. Kry mediese hulp, veral vir klipvisse en pylsterte.

Bel altyd eers jou noodnommer (112, 000, 911). Dit is algemene noodhulpraad, nie mediese advies nie. Noodhulp-basiese beginsels

Bly veilig

Moet nooit aan 'n wilde dier raak, dit vang of terg nie, selfs nie 'n kleintjie nie, en selfs nie as dit lyk of dit slaap of dood is nie.
Gee dit spasie. As jy een raakloop, bly kalm, stap stadig terug en laat dit sy eie pad gaan.
As een jou steek: bly kalm, bly stil, bel jou noodnommer (112, 000, 911) of kom vinnig by 'n hospitaal uit. Onthou hoe dit gelyk het, 'n foto help.

Dit is nie uit om jou te kry nie. Dit gebruik sy gif om kos te vang of om homself te beskerm, en kruip baie eerder weg. Meer oor veilig bly

Waar in die wêreld?

Afrika Asië Europa Noord-Amerika Suid-Amerika Australië & Oseanië Stille Oseaan Golf van Kalifornië

Hoe groot is dit?

Hoe lank is dit?

Hoe swaar is dit?

so swaar soos 5 honde

so lank soos 4 huiskatte neus tot stertso lank soos 10 piesangs punt aan puntkan die lengte van 'n groot swembad (50 m) in 8,2 sekondes swem

Hoe groot is Bat ray in vergelyking met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of enige plek heen gestuur nie.

Hoe vinnig is dit?

'n Olimpiese swemmer omtrent 8 km/h (5 mph)

Bat ray omtrent 22 km/h (14 mph)

'n Dolfyn op volspoed omtrent 35 km/h (22 mph)

die moeite werd om te weet

Feite

Bat rays dig pits in the seabed that can be up to 4 m long, and small fish gather to eat the creatures the rays expose.1

The bat ray's young are born with the spine's sheath, which falls off within hours of birth.1

Bat rays can grow to a wingspan of 1.8 m, and the largest individuals weigh about 91 kg.1

Some bat rays live alone, while others form schools of thousands.1

Bat rays have teeth that are replaced continuously, as is the case with all elasmobranchs (sharks, rays and their relatives).1

Mite-breker

Mite: Bat rays are dangerous to people because of their venomous spine.

Waarheid: Bat rays are not considered dangerous. They use the spine only when attacked or frightened, and people can avoid it by shuffling their feet when walking through shallow sand.1

Vir gifkenners

Wetenskaplike naam: Myliobatis californica
Groep: Giftige visse
Familie: Myliobatidae2
Orde: Myliobatiformes
Kontinente: Stille Oseaan, Golf van Kalifornië, Die oseane
Babas: Bat rays are ovoviviparous, so the eggs hatch inside the mother and the young are born live. A litter has two to ten pups, which are born tail first with their fins wrapped around their bodies.1
Lewensduur: omtrent 23 jaar1
Hoe dit in die natuur gaan: Least Concern1
Gevaar vir mense: 2 / 5: Pynlik3

Waar die feite vandaan kom

Bat ray (Wikipedia (CC BY-SA 4.0))
Myliobatis californica (iNaturalist): name en klassifikasie.
Venom Wiki: die gevaarvlak, die tipiese grootte en die spoedskatting is ons eie. Kyk hoe ons dit uitwerk: Hoe ons gevaar gradeer.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dierfanatici, nie 'n wetenskaplike joernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

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