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Ikhathuni ka-Spotted ratfish
Inombolo 1257 kwezingu-1 402

Spotted ratfish

Hydrolagus colliei
Mayelana negama: The genus name Hydrolagus comes from Greek words meaning water and hare. The species name honours Alexander Collie, a ship's surgeon and early naturalist.1
Kubuhlungu njeUngathintiKubuhlungu, kodwa ngeke kukulimaze kakhulu.
Izinhlanzi ezinobuthi Ameva anobuthiSidla: Inyama
Ingozi ebantwini: KubuhlunguKungaba buhlungu ngempela, kodwa cishe akukaze kube kubi kakhulu.

The spotted ratfish is a chimaera, a cartilage fish related to sharks and rays. It lives in the northeastern Pacific Ocean, and divers often see it at night in the Pacific Northwest. It gets its name from its pointed, rat-like tail.1

Ihlala
Northeastern Pacific Ocean, from Alaska to Baja California, plus an isolated population in the Gulf of California1
ULwandlekazi iPacific, Ichweba laseCalifornia
Ekhaya
It lives near the sea floor in sandy, muddy or rocky reef areas. Most live in deep water, but in the north they live closer to shore, and off California they can be found as shallow as 30 m. Divers meet it most often at night, and its leathery egg cases are laid on muddy or sandy bottoms, where divers sometimes mistake them for inanimate objects.1
Ubude
14 cm kuya ku-97 cm (5.5 in kuya ku-3.2 ft)1
Ijubane eliphezulu
cishe 15 km/h (9.3 mph)
Ukubhukuda, isiqagela nje
Sidlani?
It swims slowly above the sea floor and finds food by smell, usually hunting at night when it moves into shallow water. It is especially drawn to crunchy prey such as crabs and clams, and also eats shrimp, worms, small fish, small crustaceans and sea stars.1
Ngempela!Isithombe sika-Spotted ratfish
Spotted ratfish. Isithombe: Brian Gratwicke. CC BY 4.0, iNaturalist.

Indlela yokusibona

  • Smooth, scaleless skin that is silvery-bronze, often with gold, blue and green shine1
  • Speckled white spots along the back1
  • Large, triangular pectoral fins that stick straight out from the sides, like airplane wings1
  • A pointed, rat-like tail that makes up almost half of its total length1
  • Large emerald green eyes and a duckbill-shaped snout1

Amandla obuthi

Ameva anobuthi

Ameva abukhali aphethe ubuthi. Ukusinyathela noma ukusibamba kubuhlungu.

Ubuthi baso benzani?

The spine on the leading edge of its dorsal fin is grooved and connected to a venom gland at its base. The venom is mildly toxic. A sting from the spine causes a painful wound.1

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: KubuhlunguKungaba buhlungu ngempela, kodwa cishe akukaze kube kubi kakhulu.

It does not present a serious danger to humans, but its spines can cause painful wounds. Harbor seals have been known to die after swallowing spotted ratfish, when a spine pierced the stomach or esophagus.1

Senzani uma sesabile?

It usually keeps a safe distance from divers and is not aggressive, but it will defend its territory with the spine on its dorsal fin if it feels invaded.1

Uma ameva aso ekugwaza

  • Faka inxeba emanzini ashisayo, ashisa ngendlela umuntu angakwazi ukuyibekezelela ngaphandle kokusha (yihlole ngesandla sakho), imizuzu engama-30 kuya kwengama-90. Thola usizo lwezokwelapha, ikakhulukazi kuma-stonefish nama-stingray.

Njalo shayela kuqala inombolo yezimo eziphuthumayo (112, 000, 911). Lokhu kuyiseluleko sosizo lokuqala esijwayelekile, akusona iseluleko sezokwelapha. Izisekelo zosizo lokuqala

Hlala uphephile

  • Ungalokothi uthinte, ubambe noma ugcone isilwane sasendle, ngisho noma sincane, futhi ngisho noma sibukeka silele noma sifile.
  • Sinike isikhala. Uma uhlangana naso, hlala uzolile, uhlehle kancane bese usiyeka sihambe ngendlela yaso.
  • Uma ameva aso ekugwaza: hlala uzolile, ungashukumi, shayela inombolo yezimo eziphuthumayo (112, 000, 911) noma uye esibhedlela ngokushesha. Khumbula ukuthi besibukeka kanjani, isithombe siyasiza.

Asikuzingeli wena. Sisebenzisa ubuthi baso ukuze sibambe ukudla noma ukuzivikela, futhi singancamela ukucasha. Okwengeziwe mayelana nokuhlala uphephile

Kuphi emhlabeni?

I-AfrikaI-AsiaI-YurophuINyakatho MelikaINingizimu MelikaI-Australia ne-OceaniaULwandlekazi iPacificIchweba laseCalifornia

Sikhulu kangakanani?

Side kangakanani?

Spotted ratfish ubude obucishe bube ngu-97 cm (3.2 ft)Ikati lasekhaya cishe 50 cm (1.6 ft)Inja cishe 1 m (3.3 ft)
side njengamakati asekhaya angu-2 kusuka ekhaleni kuya emsileniside njengobhanana abangu-5 abalandelanayosingabhukuda ubude bechibi elikhulu lokubhukuda (50 m) ngemizuzwana engu-12

Spotted ratfish mkhulu kangakanani uma uqhathanisa NAWE?

Yizibalo nje kusiphequluli sakho. Akukho okulondolozwayo noma okuthunyelwa ndawo.

Sishesha kangakanani?

kuhle ukwazi

Amaqiniso

1

Adult males have a club-like cephalic clasper on the head, an organ not found in any other vertebrate, which they use to hold on to females during courtship.1

2

Its large eyes reflect light, much like the eyes of a cat.1

3

It swims with its large pectoral fins, and its barrel rolls and corkscrew turns have been described as aquatic flight.1

4

Its teeth are plate-shaped, mineralised and permanent, unlike the easily replaced teeth of sharks, and they help it grind prey.1

5

Its ampullary organs on the head detect electric fields, and they are homologous to the ampullae of Lorenzini found in sharks and rays.1

6

Its meat is not typically eaten by humans and it is not commercially caught.1

Okongoti bobuthi

Igama lesayensi
Hydrolagus colliei
Iqembu
Izinhlanzi ezinobuthi
Umndeni
Chimaeridae2
Ukuhleleka
Chimaeriformes
Amazwekazi
ULwandlekazi iPacific, Ichweba laseCalifornia, Izilwandlekazi
Izinsana
Like some sharks, it lays eggs; the female releases up to two fertilised eggs every 10–14 days in spring to autumn, and development can take up to a year.1
Ingozi ebantwini
2 / 5: Kubuhlungu3

Lapho amaqiniso evela khona

  1. Spotted ratfish (Wikipedia (CC BY-SA 4.0))
  2. Hydrolagus colliei (iNaturalist): amagama nokuhlelwa ngezigaba.
  3. Venom Wiki: izinga lengozi, usayizi ojwayelekile nesiqagela sejubane kungokwethu. Bona ukuthi sikubala kanjani: Indlela esilinganisa ngayo ingozi.

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