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Spiny dogfish multfilm rasmi
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Spiny dogfish

Squalus acanthias
Nomi haqida: The species name acanthias refers to the shark's two spines.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 spiny dogfish is a small, well-known shark with a sharp spine in front of each of its two back fins. It lives in shallow and offshore waters in most parts of the world, especially cooler seas, and it is hunted heavily for food. Its spines are its main form of defence.1

Yashash joyi
Shallow and offshore waters in most parts of the world, especially temperate seas; the northern Pacific population is now a separate species, the Pacific spiny dogfish1
Atlantika okeani, Tinch okeani, Hind okeani, Oʻrta yer dengizi, Janubiy okean, Shimoliy Muz okeani, Antarktida, Shimoliy dengiz
Bosh sahifa
It lives in shallow waters and further offshore, and is described as bottom-dwelling. It is commonly found at depths of about 50 to 149 m, and has been found deeper than 700 m. Commercial fishing brings it to fish markets, fish and chip shops and restaurants.1
Uzunlik
60 cm dan 84 cm gacha (2 ft dan 2,8 ft gacha)1
Eng yuqori tezlik
taxminan 20 km/soat (12 mil/soat)
Suzish, taxminiy
Nima yeydi?
It eats squid, fish, crab, jellyfish, sea cucumber, shrimp and other invertebrates. It hunts in packs that can number into the thousands and is described as an aggressive hunter.1
Rostdan!Spiny dogfish surati
Spiny dogfish. Surat: Ecomare/Salko de Wolf. CC BY-SA 4.0, iNaturalist.

Uni qanday tanish mumkin

  • Two spines, one in front of each dorsal (back) fin.1
  • No anal fin on the underside.1
  • White spots along its back.1
  • Greyish brown on both sexes, with countershading (darker on top, paler underneath).1
  • Asymmetrical tail lobes, forming a heterocercal tail (the upper lobe is larger).1

Koʻpincha adashtiriladi: Several shark species share the names dogfish, spurdog and piked dogfish. Spiny dogfish are told apart by having two spines, one in front of each dorsal fin, and no anal fin.1

Zahar quvvati

Zaharli tikanlar

Oʻtkir tikanlar zahar tashiydi. Ustiga bosish yoki ushlash ogʻritadi.

Uning zahari (chaqsa yoki nish ursa) nima qiladi?

Its dorsal spines secrete a mild venom. The spines are driven into an attacker when the shark arches its back.1

Odamlar uchun qanchalik xavfli?

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

Qoʻrqqanda nima qiladi?

If it is caught, it arches its back to pierce its captor with the spines near its dorsal fins.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 OkeaniyaAntarktidaTinch okeaniAtlantika okeaniHind okeaniShimoliy Muz okeaniJanubiy okeanOʻrta yer dengiziShimoliy dengiz

U qanchalik katta?

U qanchalik uzun?

Spiny dogfish taxminan 84 cm uzunlikda (2,8 ft)Uy mushugi taxminan 50 cm (1,6 ft)It taxminan 1 m (3,3 ft)
burnidan dumigacha tizilgan 1,5 ta uy mushugidek uzunketma-ket qoʻyilgan 5 ta banandek uzunkatta basseyn uzunligini (50 m) 9 soniyada suzib oʻtishi mumkin

Spiny dogfish SEN bilan solishtirganda qanchalik katta?

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

U qanchalik tez?

bilish foydali

Faktlar

1

Dogfish sharks have one of the longest pregnancies of any organism, lasting around 18 to 24 months.1

2

Spiny dogfish hunt in packs that can range up into the thousands.1

3

In England, dogfish are sold in fish and chip shops as 'huss', and used to be sold as 'rock salmon' until that term was outlawed.1

4

Spiny dogfish are popular dissection specimens in high schools and universities because they are easy to get and have small, cartilaginous skulls.1

5

Squalus acanthias fossils from the Miocene of Denmark and the Netherlands date from about 11 million years ago.1

6

Males are identified by a pair of modified pelvic fins called claspers, which they use to transfer sperm to the female.1

Afsonalarni fosh qiluvchi

Afsona: All animals called dogfish or spurdog are the same species.

Haqiqat: These common names can apply to several species. Spiny dogfish are identified by their two spines, one in front of each dorsal fin, and by having no anal fin.1

Zahar mutaxassislari uchun

Ilmiy nomi
Squalus acanthias
Guruh
Zaharli baliqlar
Oila
Squalidae2
Tartib
Squaliformes
Qitʼalar
Atlantika okeani, Tinch okeani, Hind okeani, Oʻrta yer dengizi, Janubiy okean, Shimoliy Muz okeani, Antarktida, Shimoliy dengiz, Okeanlar
Chaqaloqlar
The eggs develop inside the mother and the pups are born alive, with about 5 to 6 in each litter; gestation can last from around 18 to 24 months, one of the longest of any organism.1
Tabiatda ahvoli qanday
Vulnerable globally; Critically endangered in the Northeast Atlantic1
Odamlar uchun xavf
2 / 5: Ogʻriqli3

Faktlar qayerdan olingan

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

Bu sahifadagi har bir faktning manbasiga ishora qiluvchi raqami bor. Agar biror narsani xato yozgan boʻlsak, kechir, biz hayvon ixlosmandlarimiz, ilmiy jurnal emas. [email protected] manziliga yoz, tuzatamiz.

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