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Spotted ratfish multfilm rasmi
№ 1257 / 1 402

Spotted ratfish

Hydrolagus colliei
Nomi haqida: 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
Faqat ogʻritadiTegmaOgʻritadi, lekin senga jiddiy zarar yetkazmaydi.
Zaharli baliqlar Zaharli tikanlarOvqati: Goʻsht
Odamlar uchun xavf: OgʻriqliJuda ogʻritishi mumkin, lekin deyarli hech qachon jiddiy emas.

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

Yashash joyi
Northeastern Pacific Ocean, from Alaska to Baja California, plus an isolated population in the Gulf of California1
Tinch okeani, Kaliforniya koʻrfazi
Bosh sahifa
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
Uzunlik
14 cm dan 97 cm gacha (5,5 in dan 3,2 ft gacha)1
Eng yuqori tezlik
taxminan 15 km/soat (9,3 mil/soat)
Suzish, taxminiy
Nima yeydi?
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
Rostdan!Spotted ratfish surati
Spotted ratfish. Surat: Brian Gratwicke. CC BY 4.0, iNaturalist.

Uni qanday tanish mumkin

  • 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

Zahar quvvati

Zaharli tikanlar

Oʻtkir tikanlar zahar tashiydi. Ustiga bosish yoki ushlash ogʻritadi.

Uning zahari (chaqsa yoki nish ursa) nima qiladi?

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

Odamlar uchun qanchalik xavfli?

Odamlar uchun xavf: OgʻriqliJuda ogʻritishi mumkin, lekin deyarli hech qachon jiddiy emas.

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

Qoʻrqqanda nima qiladi?

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

Agar tikanlari senga sanchilsa

  • Yarani issiq suvga sol, odam kuymasdan chiday oladigan darajada issiq boʻlsin (oʻz qoʻling bilan tekshir), 30 daqiqadan 90 daqiqagacha. Tibbiy yordam ol, ayniqsa tosh baliq va nishli skatda.

Har doim avval favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911). Bu birinchi yordam boʻyicha umumiy maslahat, tibbiy maslahat emas. Birinchi yordam asoslari

Xavfsiz boʻl

  • Hech qachon yovvoyi hayvonga tegma, uni tutma yoki jigʻiga tegma, hatto kichkina boʻlsa ham va hatto uxlayotgan yoki oʻlik koʻrinsa ham.
  • Unga joy ber. Agar duch kelsang, xotirjam boʻl, sekin orqaga chekin va uni oʻz yoʻliga ketishiga qoʻy.
  • Agar tikanlari senga sanchilsa: xotirjam boʻl, qimirlamay tur, favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911) yoki tezda kasalxonaga yet. U qanday koʻrinishda ekanini eslab qol, surat yordam beradi.

U seni ovlamoqchi emas. Zaharini ovqat tutish yoki oʻzini himoya qilish uchun ishlatadi va yashirinishni ancha afzal koʻradi. Xavfsiz qolish haqida batafsil

Dunyoning qayerida?

AfrikaOsiyoYevropaShimoliy AmerikaJanubiy AmerikaAvstraliya va OkeaniyaTinch okeaniKaliforniya koʻrfazi

U qanchalik katta?

U qanchalik uzun?

Spotted ratfish taxminan 97 cm uzunlikda (3,2 ft)Uy mushugi taxminan 50 cm (1,6 ft)It taxminan 1 m (3,3 ft)
burnidan dumigacha tizilgan 2 ta uy mushugidek uzunketma-ket qoʻyilgan 5 ta banandek uzunkatta basseyn uzunligini (50 m) 12 soniyada suzib oʻtishi mumkin

Spotted ratfish SEN bilan solishtirganda qanchalik katta?

Faqat brauzeringdagi hisob-kitob. Hech narsa saqlanmaydi va hech qayerga yuborilmaydi.

U qanchalik tez?

bilish foydali

Faktlar

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

Zahar mutaxassislari uchun

Ilmiy nomi
Hydrolagus colliei
Guruh
Zaharli baliqlar
Oila
Chimaeridae2
Tartib
Chimaeriformes
Qitʼalar
Tinch okeani, Kaliforniya koʻrfazi, Okeanlar
Chaqaloqlar
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
Odamlar uchun xavf
2 / 5: Ogʻriqli3

Faktlar qayerdan olingan

  1. Spotted ratfish (Wikipedia (CC BY-SA 4.0))
  2. Hydrolagus colliei (iNaturalist): nomlar va tasnif.
  3. Venom Wiki: xavf darajasi, odatiy oʻlcham va taxminiy tezlik bizning oʻz baholarimiz. Ularni qanday hisoblashimizni koʻr: Xavfni qanday baholaymiz.

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