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Katuni yaSpotted ratfish
Nhamba 1257 pa1 402

Spotted ratfish

Hydrolagus colliei
Nezvezita: 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
InongorwadzaUsabataInorwadza, asi haizokukuvadza zvakanyanya.
Hove dzine uturu Mazonzwa ane uturuInodya: Nyama
Ngozi kuvanhu: InorwadzaInogona kurwadza chaizvo, asi kazhinji haisi njodzi huru.

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

Inogara mu
Northeastern Pacific Ocean, from Alaska to Baja California, plus an isolated population in the Gulf of California1
Gungwa rePacific, Gulf yeCalifornia
Kumba
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
Kureba
14 cm kusvika 97 cm (5,5 in kusvika 3,2 ft)1
Kumhanya kukuru
kunenge 15 km/h (9,3 mph)
Kushambira, kufungidzira
Inodya chii?
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
Chaizvo!Mufananidzo waSpotted ratfish
Spotted ratfish. Mufananidzo: Brian Gratwicke. CC BY 4.0, iNaturalist.

Maziviro ayo

  • 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

Simba reuturu

Mazonzwa ane uturu

Mazonzwa akapinza ndiwo anotakura uturu. Kuitsika kana kuibata kunorwadza.

Uturu hwayo hunoitei?

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

Ine ngozi yakadii kuvanhu?

Ngozi kuvanhu: InorwadzaInogona kurwadza chaizvo, asi kazhinji haisi njodzi huru.

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

Inoitei kana yatya?

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

Kana minzwa yayo ikakubaya

  • Isa ronda mumvura inopisa, inopisa sezvinokwanisa munhu asina kutsva (iedze neruoko rwako), kwemaminitsi 30 kusvika 90. Wana rubatsiro rwechiremba, kunyanya kustonefish nemastingray.

Gara uchitanga wafonera nhamba yechimbichimbi (112, 000, 911). Iri izano rakajairika rerubatsiro rwekutanga, kwete zano rechiremba. Zvakakosha zverubatsiro rwekutanga

Gara wakachengeteka

  • Usambobata mhuka yesango, kuedza kuitora kana kuinetsa, kunyange iri diki, uye kunyange ichiita seyakarara kana yakafa.
  • Ipa nzvimbo. Kana ukasangana nayo, dzikama, dzokera shure zvishoma nezvishoma uirege iende nenzira yayo.
  • Kana minzwa yayo ikakubaya: dzikama, gara wakanyarara, fonera nhamba yechimbichimbi (112, 000, 911) kana kuti enda kuchipatara nokukurumidza. Rangarira kuti yaitaridzika sei, mufananidzo unobatsira.

Haisi kukutsvaga. Inoshandisa uturu hwayo kubata chikafu kana kuzvidzivirira, uye inotonyanya kuda kuhwanda. Zvimwe pamusoro pekugara wakachengeteka

Yakakura sei?

Yakareba zvakadii?

Spotted ratfish kunenge 97 cm kureba (3,2 ft)Katsi yepamba kunenge 50 cm (1,6 ft)Imbwa kunenge 1 m (3,3 ft)
yakareba sekatsi dzepamba 2 kubva pamhuno kusvika kumusweyakareba semabhanana 5 akateedzanainogona kushambira kureba kwedziva guru rekushambira (50 m) mumasekondi 12

Spotted ratfish yakakura sei kana yaenzaniswa NEWE?

Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.

Inomhanya zvakadii?

zvakanaka kuziva

Chokwadi

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

Kune nyanzvi dzeuturu

Zita resainzi
Hydrolagus colliei
Boka
Hove dzine uturu
Mhuri
Chimaeridae2
Odha
Chimaeriformes
Makondinendi
Gungwa rePacific, Gulf yeCalifornia, Makungwa makuru
Vacheche
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
Ngozi kuvanhu
2 / 5: Inorwadza3

Kwakabva chokwadi

  1. Spotted ratfish (Wikipedia (CC BY-SA 4.0))
  2. Hydrolagus colliei (iNaturalist): mazita nekurongwa kwemhuka.
  3. Venom Wiki: danho rengozi, saizi yakajairika nekufungidzira kwekumhanya ndezvedu. Ona kuti tinozviwana sei: Matinoyera ngozi.

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Zvimwe kubva muboka rimwe chete: Hove dzine uturu

Inogarawo mu: Gungwa rePacific

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