Mako shark (Isurus oxyrinchus), tseem hu ua mako shark, yog ib hom ntawm pab pawg neeg feem ntau hu ua mackerel sharks, thiab Nws belongs rau tsev neeg Lamnidae, uas nws sib koom, nrog rau lwm tus, nrog cov ntses loj dawb (Carcharodon carcharias). Hom ntses cartilaginous no yog ib qho tseem ceeb predator nyob rau hauv lub marine ecosystems uas nws nyob, thiab muaj tej yam peculiar yam ntxwv uas ua rau muaj kev txaus siab rau nws tus cwj pwm. Koom nrog peb hauv tab ntawm peb qhov chaw, yog li koj tuaj yeem kawm paub dav dav txog mako shark
Mako Shark Nta
Cia peb saib hauv qab no dab tsi yog cov yam ntxwv uas ua rau mako shark:
- Nws yog qhov loj: feem ntau nrog qhov ntev li ntawm 3.2 txog 3.8 meters ntev, thiab hnyav li ntawm 60 txog 135 kg.
- Poj niam loj dua txiv neej: yog li ntawd lawv thiaj hnyav txog li 150 kg.
- Has a fast growth rate: Muab piv rau lwm hom shark.
- Lub cev lub cev yog cylindrical thiab streamlined.
- tail fin yog vertically elongated: nws kuj yog tuab thiab muaj zog heev, cia nws txav nws tus kheej sai sai thaum ua luam dej.
- Pectoral fins, meanwhile, luv.
- Lub qhov muag dub
- Coloration varies by area: nws yog xim hlau xiav rau ntawm thaj chaw dorsal ntawm lub cev, tab sis dawb ntawm lub plab, thiab ib ncig ntawm lub qhov ncauj thiab hauv qab snout.
- Xim txawv raws hnub nyoog: nyob ntawm lub hnub nyoog ntawm tus neeg nws yuav muaj qee qhov ntxoov ntxoo lossis lwm tus.
- :
- Raws li ib tsev neeg ntawm sharks, cov hniav yog loj, conical nyob rau hauv cov duab thiab ntse heev: uas yuav pom tau tawm. ntawm lub qhov ncauj txawm thaum kaw.
Mako Shark Habitat
Mako shark is a cosmopolitan species, with a fairly distribution range in all oceans, mainly in the temperate and tropical.
Nws yuav yog tam sim no nyob rau thaj tsam neritic, uas yog, thaj tsam uas tsis tshaj 200 meters, muaj hnub ci zoo thiab nyob rau hauv. kev cuam tshuam nrog thaj tsam ntug hiav txwv. Tsis tas li, nws tuaj yeem ua tau nyob rau hauv dej hiav txwv, epipelagic thiab mesopelagic cheeb tsam, nyob ib ncig ntawm 800 meters tob. Cov chaw no sib raug rau qhov chaw ntawm ntau hom tsiaj.
Txawm hais tias nws nyiam, raws li peb tau hais, temperate and tropical waters, nws tuaj yeem txav mus rau dej txias, nruab nrab ntawm 5 txog 11 or C. Ntawm qee thaj chaw uas nws nquag pom, peb pom raws ntug dej hiav txwv ntawm ob sab qaum teb thiab:
- South America
- Russia
- Australia
- New Zealand
- Norway
- Indo Pacific
- East Africa
- Hiav txwv Liab
Mako Shark Customs
Mako shark yog ib hom kab mob uas nquag mus tas li. Nws yog agile heev, ceev, ncav cuag speeds nyob ib ncig ntawm 32 km/h Ib qho ntawm nws cov yam ntxwv tshwj xeeb yog thaum lawv tau ntes tau thiab tseem hooked, lawv tuaj yeem dhia tawm. ntawm dej.
Koj tuaj yeem nqa tau 55 km ib hnub. Nyob ib leeg, tab sis tej zaum yuav tsim ib pab pawg, pom meej txiav txim los ntawm kev sib deev. Nws tsis yog qhov tshwm sim rau nws los tawm tsam tib neeg vim tias nws tsis yog feem ntau ze rau ntawm ntug dej hiav txwv, tab sis nws tuaj yeem ua tus shark txhoj puab heev. Qhov tseeb, nws tawm tsam nws cov tsiaj.
Txawm hais tias nws yog ib hom tsiaj uas nyuaj rau kev kawm, vim nws lub zog thiab kev ua haujlwm nws tsis tau khaws cia hauv kev poob cev qhev, nws paub tias muaj ntawm lub zeem muag, tsis hnov tswthiab muaj peev xwm tshawb xyuas qhov kev hloov pauv siab thiab dej txav, uas ua rau nws muaj kev hnov lus zoo.
Mako shark feeding
Mako shark is an apex predator, that is, in the ecosystems in which it developed, it is the top predator. Nws nquag tua ntau hom tsiaj, txawm tias cov ntses xiav (Pomatomus s altatrix) yog ib qho ntawm nws nyiam.
Can also feed on:
- Lwm tus sharks.
- Atlantic Mackerel (Scomber scombrus).
- Atlantic herring (Clupea harengus).
- Albacore tuna (Thunnus alalunga).
- Swordfish (Xiphias gladius).
- Squid (Loligo pealeii, Illex illecebrosus).
- Dolphins (Delphinus capensis)
- Green sea turtles (Chelonia mydas).
- Lwm yam me tsiaj.
Mako shark reproduction
This yog ib hom ovoviviparous, yog, cov xeeb leej xeeb ntxwv uas tsis tuav lub placental txuas nrog leej niam pub thawj zaug rau lawv tus kheej. qe thiab tom qab ntawd, cov tsim ntau dua, noj lwm cov qe thiab txawm tias lawv cov kwv tij me. Gestation kav li ntawm 15 mus rau 18 lub hlis, los ntawm cov me nyuam yug los, nrog lawv cov hniav thiab lub cev ua haujlwm.
Raws li nrog rau lwm cov sharks, hom no tsis tsim khub, tab sis tsuas yog koom rau kev loj hlob. Tsis tas li ntawd, nws tau pom nyob rau hauv cov poj niam sib txawv uas lawv tuaj yeem ntsib kev nruj me ntsis, qhov twg cov txiv neej tom lawv fins thiab plab. Kev sib yuav yog kwv yees tshwm sim thaum lub caij ntuj sov thiab lub caij nplooj zeeg ntxov.
Cov me nyuam yug los ntawm 4 mus rau 16 tus neeg, uas ntsuas ib ncig ntawm 70 cm kwv yees li thiab tag nrho ywj siab ntawm leej niam tom qab yug me nyuam. Lub neej expectancy ntawm mako shark yog kwv yees li 30 xyoo, yog qhov no ntev ntawm cov poj niam tshaj li txiv neej.
Mako Shark Conservation Status
Txoj kev txuag ntawm mako shark yog Endangered thiab, txawm hais tias nws nyuaj rau muaj qhov kwv yees tseeb ntawm cov neeg hauv ntiaj teb, nws paub tias nws poob. Kev hem rau cov tsiaj muaj xws li kev yos hav zoov ncaj qha thiab tsis sib haum.
Direct capture tshwm sim rau noj vim nws cov nqaij yog kev lag luam heev tab sis, ntxiv rau, mako shark raug tsim txom heev los ntawm cov tib neeg uas xyaum nuv ntses raws li kev ua kis las. Nws tsis yog kev ua kis las tab sis yog ib qho tsis tsim nyog, vim kev ua si yuav tsum tsis txhob ua rau muaj kev phom sij rau tsiaj.
Hais txog kev ntes tsis ncaj, nws yog muab los ntawm nuv ntses loj, exerted los ntawm lub ntiaj teb no fisheries uas rho tawm ntawm dej hiav txwv nyob rau hauv ib tug uncontrolled marine. biodiversity. Kev txuag kev nqis peev rau mako shark muaj tsawg heev, txij li lawv nyob ntawm qhov tseem ceeb ntawm kev tswj hwm hauv txhua cheeb tsam. Lawv tsis tau ua tau zoo txaus, uas yog pov thawj los ntawm kev pheej hmoo nws khiav thoob ntiaj teb.
