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Bat ray

Myliobatis californica

Inauma tuInauma, lakini haitakudhuru vibaya.

Samaki wenye sumu

KudungwaHula: Nyama

Hatari kwa watu: InaumaInaweza kuuma sana, lakini karibu kamwe si jambo zito.

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

Anaishi

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

Bahari ya Pasifiki, Ghuba ya California

Nyumbani

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

Urefu

1.8 m (5.9 ft)1

Uzito

9.1 kg hadi 91 kg (20 lb hadi 201 lb)1

Kasi ya juu

takriban km 22 kwa saa (maili 14 kwa saa)

Kuogelea, makadirio

Hula nini?

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

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

Jinsi ya kumtambua

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

Nguvu ya sumu

Kudungwa

Sumu hutoka kupitia mdungo.

Ana hatari gani kwa watu?

Hatari kwa watu: InaumaInaweza kuuma sana, lakini karibu kamwe si jambo zito.

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

Hufanya nini akiogopa?

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

Akidunga

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.
Akikudunga: 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 Pasifiki Ghuba ya California

Ana ukubwa gani?

Ana urefu gani?

Ana uzito gani?

uzito sawa na mbwa 5

urefu sawa na paka wa nyumbani 4 kutoka pua hadi mkiaurefu sawa na ndizi 10 zilizopangwa mstariangeweza kuogelea urefu wa bwawa kubwa (m 50) kwa sekunde 8.2

Bat ray ana ukubwa gani ukilinganisha na WEWE?

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

Ana kasi gani?

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

Bat ray takriban km 22 kwa saa (14 mph)

Pomboo kwa kasi kamili takriban km 35 kwa saa (22 mph)

inafaa kujua

Ukweli

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

Kuvunja dhana potofu

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

Ukweli: 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

Kwa wataalamu wa sumu

Jina la kisayansi: Myliobatis californica
Kundi: Samaki wenye sumu
Familia: Myliobatidae2
Mpangilio: Myliobatiformes
Mabara: Bahari ya Pasifiki, Ghuba ya California, Bahari kuu
Watoto: 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
Muda wa maisha: takriban miaka 231
Hali yake porini: Least Concern1
Hatari kwa watu: 2 / 5: Inauma3

Ukweli unatoka wapi

Bat ray (Wikipedia (CC BY-SA 4.0))
Myliobatis californica (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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