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Spotted ratfish

Hydrolagus colliei
Tungkol sa pangalan: 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
Masakit langHuwag hawakanMasakit, pero hindi ka nito lubhang mapipinsala.
Mga makamandag na isda Makamandag na tinikKinakain: Karne
Panganib sa tao: MasakitTalagang masakit, pero halos hindi kailanman malala.

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

Nakatira sa
Northeastern Pacific Ocean, from Alaska to Baja California, plus an isolated population in the Gulf of California1
Karagatang Pasipiko, Golpo ng California
Home
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
Haba
14 cm hanggang 97 cm (5.5 in hanggang 3.2 ft)1
Pinakamataas na bilis
mga 15 km/h (9.3 mph)
Paglangoy, tantiya lang
Ano ang kinakain nito?
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
Totoo!Litrato ng Spotted ratfish
Spotted ratfish. Litrato: Brian Gratwicke. CC BY 4.0, iNaturalist.

Paano ito makikilala

  • 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

Lakas ng kamandag

Makamandag na tinik

May dalang kamandag ang matatalim na tinik. Masakit kapag naapakan o nahawakan ito.

Ano ang epekto ng kamandag nito?

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

Gaano ito kapanganib sa tao?

Panganib sa tao: MasakitTalagang masakit, pero halos hindi kailanman malala.

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

Ano ang ginagawa nito kapag natatakot?

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

Kung matusok ka ng mga tinik nito

  • Ilubog ang sugat sa mainit na tubig, kasing-init ng kayang tiisin ng tao nang hindi napapaso (subukan muna gamit ang sarili mong kamay), sa loob ng 30 hanggang 90 minuto. Kumuha ng tulong medikal, lalo na para sa stonefish at pagi.

Laging tawagan muna ang numero pang-emergency (112, 000, 911). Ito ay pangkalahatang gabay sa pangunang lunas, hindi payong medikal. Mga batayan ng pangunang lunas

Mag-ingat

  • Huwag kailanman hawakan, hulihin o asarin ang ligaw na hayop, kahit maliit, at kahit mukha itong tulog o patay.
  • Bigyan ito ng espasyo. Kung makasalubong ka ng isa, manatiling kalmado, dahan-dahang umatras at hayaan itong umalis.
  • Kung matusok ka ng mga tinik nito: manatiling kalmado, huwag gumalaw, tawagan ang numero pang-emergency (112, 000, 911) o pumunta agad sa ospital. Tandaan ang itsura nito, makakatulong ang litrato.

Hindi ka nito hinahabol. Ginagamit nito ang kamandag para manghuli ng pagkain o ipagtanggol ang sarili, at mas gusto pa nitong magtago. Higit pa tungkol sa pag-iingat

Saan sa mundo?

AprikaAsyaEuropaHilagang AmerikaTimog AmerikaAustralia at OceaniaKaragatang PasipikoGolpo ng California

Gaano ito kalaki?

Gaano ito kahaba?

Spotted ratfish mga 97 cm ang haba (3.2 ft)Isang pusang bahay mga 50 cm (1.6 ft)Isang aso mga 1 m (3.3 ft)
kasinghaba ng 2 pusang bahay mula ilong hanggang buntotkasinghaba ng 5 saging na magkakadugtongkayang languyin ang haba ng malaking swimming pool (50 m) sa loob ng 12 segundo

Gaano kalaki si Spotted ratfish kumpara sa IYO?

Math lang sa browser mo. Walang sine-save o ipinapadala kahit saan.

Gaano ito kabilis?

magandang malaman

Mga fact

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

Para sa mga eksperto sa kamandag

Pangalang siyentipiko
Hydrolagus colliei
Grupo
Mga makamandag na isda
Pamilya
Chimaeridae2
Ayos
Chimaeriformes
Mga kontinente
Karagatang Pasipiko, Golpo ng California, Ang mga karagatan
Mga sanggol
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
Panganib sa tao
2 / 5: Masakit3

Saan galing ang mga fact

  1. Spotted ratfish (Wikipedia (CC BY-SA 4.0))
  2. Hydrolagus colliei (iNaturalist): mga pangalan at klasipikasyon.
  3. Venom Wiki: sarili naming tantiya ang antas ng panganib, karaniwang laki at hula sa bilis. Tingnan kung paano namin ito kinukuwenta: Paano namin sinusukat ang panganib.

Bawat fact sa pahinang ito ay may numerong tumuturo sa pinagmulan nito. Kung may mali kami, pasensya na, mahilig lang kami sa hayop, hindi kami science journal. Sabihin sa amin sa [email protected] at aayusin namin.

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Higit pa mula sa parehong grupo: Mga makamandag na isda

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Nakatira rin sa: Karagatang Pasipiko

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