Ushaka okhanyayo waseBrazil (Isistius brasiliensis) noma ushaka we-cigar ungowesigaba senhlanzi esine-cartilaginous.
Ukusabalala kukashaka okhanyayo waseBrazil.
Ushaka okhazimulayo waseBrazil usakazeka olwandle olusenyakatho neJapan naseningizimu ogwini lwaseNingizimu Australia. Yinhlanzi yasolwandle ejulile futhi ivame ukutholakala eduze kweziqhingi ezindaweni ezipholile nezishisayo. Itholakala ezindaweni eziqhelile eziseduze neTasmania, Western Australia, New Zealand nakuyo yonke iNingizimu Pacific (kufaka phakathi iFiji neCook Islands).
Futhi uhlala engxenyeni esentshonalanga ye-Atlantic Ocean: eduze neBahamas naseningizimu yeBrazil, e-East Atlantic: emanzini aseCape Verde, eGuinea, eningizimu ye-Angola naseNingizimu Afrika, kufaka phakathi i-Ascension Island. Esifundeni se-Indo-Pacific, sifinyelela eMauritius, eLord Howe Island, enyakatho eJapan nasempumalanga kuya eHawaii; empumalanga yePacific, ifinyelela ngase-Easter Island naseGalapagos Islands.
Indawo okuhlala kuyo ushaka okhanyayo waseBrazil.
Oshaka abakhanyayo baseBrazil batholakala emanzini olwandle ashisayo emhlabeni jikelele. Bavame ukuhlala beseduze neziqhingi, kepha batholakala olwandle oluphakeme. Lezi zinhlobo zenza ukufuduka okumi mpo nsuku zonke kusuka ngaphansi kwamamitha ayi-1000, kuthi ebusuku zibhukude eduze kwaphezulu. Ububanzi bokujula bufinyelela kumamitha ayi-3700. Bakhetha amanzi ajulile azungeze ama-35 ° - 40 ° N. w, 180 ° E
Izimpawu zangaphandle zoshaka okhanyayo waseBrazil.
Ushaka okhanyayo waseBrazil ungummeleli ojwayelekile wohlelo loshaka. Inobude bomzimba obungamasentimitha angama-38 - 44. Umzimba umile okokuphotha, kufana nogwayi omkhulu onomphetho omfishane oyindilinga nomlomo omunce ongajwayelekile. I-anal fin ayikho. Umbala uphuzi ngokukhanyayo uye kokumpunga onsundu, unekhola emnyama emphinjeni, isisu silula.
Abesifazane bakhulu kunabesilisa futhi bafinyelela kubude obungamayintshi angama-20. Kunama-vertebrae angama-81 - 89.
Izici zoshaka balezi zinhlobo zinomphetho omkhulu, ocishe ulingane we-caudal nge-lobe ende ye-ventral, eyi-2/3 yobude bomsila namazinyo aphansi angunxantathu amakhulu, atholakala emigqeni engu-25-32. I-petal caudal imnyama. Amazinyo aphezulu mancane. Amaphiko e-pectoral ayisikwele, amaphiko we-pelvic makhulu kunamaphiko we-dorsal. Amaphiko amabili amancanyana, amancani asetjelweko atholakala eduze ngemuva. Amehlo atholakala ngaphambili kwekhanda, kepha kude ngokwanele, ukuze umbono walezi zinhlobo zikashaka ungabi nensimu enkulu kakhulu.
Ukuzalela ushaka okhanyayo waseBrazil.
Ushaka okhanyayo waseBrazil wuhlobo lwe-ovoviviparous. Umanyolo ungaphakathi. Imibungu ikhula ngaphakathi kwamaqanda, idla isikhupha bese ihlala ngaphakathi kweqanda ize ikhule ngokugcwele. Ukuthuthuka kuthatha izinyanga eziyi-12 kuye kwezingu-22. Insikazi izala oshaka abancane abayi-6-12 ngaphandle kokuzalwa kwe-yolk, usayizi wabo ekuzalweni awaziwa. Oshaka abancane bayakwazi ukuzingela bodwa.
Abesilisa bazala ngobude bomzimba obungu-36 - 42 cm, abesifazane bazala lapho ubukhulu bomzimba bufinyelela kuma-39 cm - 56 cm. indawo yokuhlala yoshaka abasha balolu hlobo.
Ukuziphatha kukashaka okhanyayo waseBrazil.
Ushaka okhanyayo waseBrazil wuhlobo oluthile lwe-bathypelagic. Izinhlanzi zihlangana ndawonye ukukhwelana kuphela.
Benza ukufuduka okude mpo ngaphezu kwamamitha angu-2000 - 3000 phakathi nomjikelezo wosuku.
Oshaka abakhanyayo baseBrazil basondela ebusweni bamanzi ebusuku, lapho bevame ukubanjwa kakhulu kumanetha okudoba. Ngisho nasebusuku, izinhlanzi zihlala zingamamitha angu-300 ngaphansi kwamanzi. Zivame ukutholakala eduze kweziqhingi, kepha akucaci ukuthi ziyahlangana yini ngenxa yokuhlangana kakhulu kwezilwane noma ukukhwelana. Isibindi salolu hlobo lukashaka siqoqa izinqolobane ezinkulu zamafutha, futhi lesi sici sibenza bakwazi ukubhukuda ekujuleni okukhulu. Amathambo asalulaza, kepha aqiniswe kancane, okwenza kube lula ukubhukuda ekujuleni okukhulu. Oshaka abavuthayo baseBrazil kwesinye isikhathi bahlasela imikhumbi-ngwenya, babaphathe njengezisulu.
Ukondla ushaka okhanyayo waseBrazil.
Oshaka abakhanyayo baseBrazil yizilwane ezidla ulwandle ezihlala mahhala. Bazingela ama-squid amakhulu, ama-crustaceans, izinhlanzi ezinkulu ze-pelagic ezinjenge-mackerel, i-tuna, imikhonto, kanye nezinye izinhlobo zoshaka nama-cetaceans (izimvu zamanzi, amahlengethwa).
Izinhlanzi ezidla ezinye zinamathela esiswini sazo ngokunyakaza kwezindebe ezikhethekile kanye nepharynx eguquliwe, bese zifinya enyameni yesisulu sisebenzisa amazinyo abukhali aphansi.
Lokhu kushiya umgodi ojulile ophindwe kabili ububanzi bawo. Amazinyo aphezulu asebenza njengezingwegwe zokubamba inyamazane, kanti amazinyo aphansi asebenza njenge-plug eyindilinga. Oshaka abakhanyayo baseBrazil bayizinhlanzi ze-bioluminescent ezikwazi ukukhipha ukukhanya okuluhlaza okuvela esiswini. Abadliwayo basebenzisa lokhu kukhanya ukuze badonse ukunakekelwa kwabangaba izisulu. Indawo ekhanyayo ayikhangi nje kuphela izinhlanzi ezincane, kodwa futhi inyamazane enkulu, esondela koshaka ifuna ukudla. Ngemuva kokulunywa ushaka okhanyayo waseBrazil, kusala izimpawu zoshaka abayindilinga, ezibonwa nasemikhunjini yemikhumbi-ngwenya. Lolu hlobo lukashaka lukhipha ukukhanya amahora amathathu ngemuva kokufa kwalo. Izinhlanzi ezidla ezinye aziyona ingozi kubantu ngenxa yobuncane bazo nokuba sendaweni ejulile yolwandle.
Okusho umuntu.
Oshaka abakhanyayo baseBrazil banomthelela omubi ongaba khona kwezokudoba njengoba bezingela izinhlanzi ezithengiswayo futhi bavame ukulimaza imizimba yabo ngokushiya izimpawu ezithile. Ukuhlaselwa kwemikhumbi-ngwenya kubonwa njengokuhlasela ngengozi. Ngenxa yobuncane bayo nezindawo ezihlala olwandle olujulile, lolu hlobo alunamanani okuhweba kubadobi futhi aluyona ingozi kubabhukudi.
Isimo sokonga soshaka okhanyayo waseBrazil.
Oshaka abakhanyayo baseBrazil bahlala ekujuleni kolwandle, okwenza lolu hlobo lungafinyeleleki ekudobeni okukhethekile. Kodwa-ke, izinhlanzi zibanjwa ngephutha emanetheni ebusuku lapho zihamba zibheka lapho zifuna inyamazane. Ngokuzayo, oshaka abakhanyayo baseBrazil basongelwa ukwehla okukhulu kobuningi njengoba ukubanjwa kwezinhlanzi zasolwandle kukhuphuka. Lezi zinhlobo zihlukaniswe ngokuthi Ukukhathazeka Okuncane.
