Bathi ngushaka onekhono kunabo bonke emhlabeni. Yize kunezinhlobonhlobo zoshaka kuzo zonke izilwandle nezilwandle zomhlaba, lo shaki okukhulunywa ngaye unamakhono kakhulu. Imayelana ne- ushaka obabulayo. Kuyaziwa nangamanye amagama anjenge-fox ekhanyisiwe, i-bigeye fox ne-tail fox. Igama layo lesayensi ngu Ama-Alopias superciliosus. Ingenye yezinhlobo ezingezohlobo lwe-Alopias kanye nomndeni we-Alopiidae.
Kulesi sihloko sizodalula zonke izimfihlo zeshark thresher nezimpawu zayo eziyinhloko.
Izici eziyinhloko
Ungomunye woshaka onesidingo esiphakeme kakhulu kwezentengiselwano emhlabeni jikelele. Lokhu kungenxa yokuthi inyama yayo inokusha okusha okungenakuqhathaniswa. Ngaphezu kwalokho, isikhumba sayo sisetshenziselwa ukwenza izingubo zesikhumba.
Ngenxa yalokhu kudotshwa okuqhubekayo kwabantu, i-International Union for Conservation of Nature (IUCN) ubeke uhlu lwezinto eziphilayo endaweni esengozini. Lokhu kuzingela nokubanjwa kucatshangwa ukuthi kuqeda iningi labantu bakashaka emhlabeni jikelele.
Iso lenyama, okugqame kakhulu ngalo shaki amehlo alo amakhulu. Lamehlo asetshenziselwa ukuwabona kalula futhi uwahlukanise. Ngenxa yamehlo amakhulu bayabona ekujuleni kolwandle, noma ngabe kunokukhanya okuncane. Njengoba sazi, njengoba sincipha ekujuleni, sithola inani elincane lemisebe yelanga efikayo futhi, ngakho-ke, kunokulungiswa okuhlukile okufanele kubhekelwe ukukwazi ukuhlala ezinzulwini. Isibonelo, kunezinhlanzi isikhumba sazo esithambile ukuze sikwazi ukuzivumelanisa nezingcindezi ezinkulu ezingaphansi kwamanzi.
Descripción
Ushaka wokubhoboza unebanga eliphakathi kwamamitha amathathu no-3, kwesinye isikhathi lifinyelela kumamitha ayi-4. Imvamisa ifinyelela isisindo esiphakathi kuka-5 kg no-160 kg. Okugqame kakhulu ngaphandle kwamehlo amakhulu ngosayizi omkhulu womphetho womsila. Ubungako baleli kuphela obukwazi ukuba yingxenye yobukhulu bomzimba wawo wonke.
Amaphiko wepectoral, noma kunjalo, abanzi kunesikhathi eside. Ngokuqondene nombala wayo, siyabona ukuthi endaweni yesisu inombala omhlophe futhi yonke indawo yayo inombala onsundu onsundu. Lo mbala ungaphutha kalula ngombala ompunga ocishe ube mnyama. Isifonyo sayo sifushane ngomhlathi omncane. Inamazinyo abukhali kakhulu futhi amancane. Ingxenye yomhlathi ongaphezulu ingenziwa ngamazinyo angaba ngu-19 kuye kwangama-24. Okwesibili, engezansi ingaqanjwa phakathi kwama-20 kuye kwangama-24.
Lolu hlobo lukashaka lubhukuda kahle futhi luyakwazi ukugijima ngesivinini esiphezulu. Inama-denticles amancane kakhulu e-dermal. Lesi silwane asihloselwe ukuba sihlasele. Ngokuphambene nalokho, kumuntu akunangozi.
Indawo yokuhlala ushaka waseTresher nohla
Njengoba sishilo phambilini, lezi zilwane zitholakala ekujuleni okuphakathi kwamamitha angama-30 kuya kwayi-150. Kwesinye isikhathi kungabonakala ekujuleni kwamamitha ayi-500. Singabathola behlala emanzini ashisayo nasendaweni epholile. Lokhu kwenza indawo yayo yokusatshalaliswa ihlanganise cishe umhlaba wonke.
Uma sikuthola ezindaweni ezikuyo, singakuthola ku: I-United States, emaphethelweni eNew York kuya eCalifornia, nakwezinye izindawo ezifana neHawaii, Cuba, South Africa, Japan neNew Zealand.
Ukudla
Manje ake sibheke ukuthi ushaka wokubhula udla ini. Ukuba ushaka onekhono, sisebenzelana nomzingeli impela. Inendlela yokuzingela ehlukile kunabanye oshaka. Lokhu kungenxa yokuthi isebenzisa umsila wayo ukuzingela izisulu zayo. Ngalo mqondo, iyakwazi ukusebenzisa ingcina ngezindlela ezahlukahlukene. Okokuqala ukushaya ebusweni nge-fin, okwenza izinhlanzi ziqale ukuqoqwa. Bese bephenduka ngomsindo omkhulu oshaya iqembu de peces futhi ngaleyo ndlela angakwazi ukuwahlasela lapho engenangozi.
Le ndlela yokuzingela imenza abe luhlobo lonke ngekhono elikhulu. Ukudla kusekelwe ikakhulukazi ku-tuna, ama-crustaceans, i-octopus, izinkalankala, i-squid nezinye izinyoni zasolwandle ezikwazi ukuzingela. Lezi zinyoni zitshuza ziyofuna ezinye izinhlanzi. Oshaka bayakwazi ukubazingela ngaphandle kwenkinga.
Ukukhiqizwa kabusha kukashark
Sizobona konke okukhona mayelana nokukhiqizwa kabusha kukashark oqabulayo. Ukukhiqizwa kabusha kwalezi zilwane akuxhomekile enkathini yonyaka esikuyo noma ezinyangeni zonyaka ukuze sikwazi ukuzala. Ngakho-ke, bangakwenza nganoma yisiphi isikhathi sonyaka. Lokhu kubanikeza inzuzo enkulu yokuzala futhi, ngenxa yale modeli yokukhiqiza, kungahle kungabi sesimweni esibi kakhulu sokongiwa kwendalo kunamuhla.
Ngaphambi kokwenza isenzo sokukhwelana, kumele ngabe bafinyelele ekuvuthweni ngokocansi. Le minyaka iyahluka kuye ngokuthi owesilisa noma owesifazane. Abanye babo bangawufinyelela uneminyaka emithathu ubudala, kanti abanye kungenzeka ukuthi bawufinyelele ngeminyaka engu-3. Konke kuncike emzimbeni womuntu ngamunye nasekukhuleni kwabo.
Njengezinhlobo eziningi zoshaka, ukuzala kwayo kungohlobo lwe-ovoviviparous. Lokhu kusho ukuthi amaphuphu akhula ngaphakathi kowesifazane kepha ngaphakathi kweqanda esikhathini esiyizinyanga eziyi-9. Iqiniso elilodwa elifuna ukwazi kakhulu ukuthi laba oshaka, ngokuba sezindlini, imvamisa badla amaqanda angakavundiswa. Abesifazane bangaba nentsha ephakathi kuka-2 no-4 esikhathini ngasinye sokuzala.
Ukuba phakathi kwezinhlobo ezifunwa kakhulu ngabantu, kokubili ngenyama nesikhumba sayo, kusongelwa. Isobho se-Thresher shark fin sifunwa kakhulu phakathi kwengcebo eminingi ye-gastronomic. Kulinganiselwa ukuthi cishe i-15% yabantu bonke bomhlaba boshaka ababushile basuswe eminyakeni eyi-80 edlule.
Akuyona neze ingozi kubatshuzi njengoba kunamahloni impela. Kunzima impela ukusondela kubo futhi abanolaka nakancane nezinye izilwane ezinkulu kunabo.
Ngiyethemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana noshark oqabulayo.