Namuhla sizokhuluma ngoshaka ongenabungozi kubantu yize ubukeka. Imayelana ne- ushaka ongumhlengikazi. Igama layo lesayensi ngu Isifo se-Ginglymostoma futhi kuyinhlobo enokuthula. Kuyingxenye yomndeni wakwaGinglymostomatidae, lapho izibonelo zitholakala ekujuleni kwezilwandle lapho ukukhanya kuncane kakhulu futhi nezimo zokuphila ziba nzima. Into ethakazelisa kakhulu ngalesi silwane ukuthi sinomlomo omncane kunabo bonke oshaka.
Kulesi sihloko sizotshela yonke i-biology, isimilo, ukondla nokukhiqiza kabusha kukanesi ushaka.
Izici eziyinhloko
I-nurse shark icishe ibe ngamamitha amane ubude. Kuyisilwane esinemikhuba yasebusuku futhi esivame ukuphumula olwandle emihumeni emihle emini. Isikhathi esidla ngaso sisebusuku lapho iphuma iyozingela. Ngokungafani noshaka abavamile, ushaka ongumhlengikazi unomlomo omncane kakhulu. Anombala omnyama ngokulingana okuncane noma okuncane futhi ezinye izinhlobo zinezikhala.
Ngokuvamile, kungabonakala ukuthi ikhuluphele kakhulu. Njengoba sishilo phambilini, yisilwane esingenabungozi naphezu kokubukeka kwaso. Kodwa-ke, ingahlasela uma izwa icasulwa yisilwane noma ngumuntu. Lapho ziluma, basebenzisa imihlathi yabo ukuyivala ngokuqinile futhi kufanele baphoqwe kanzima ukuvula kabusha. Uma ufuna ukuzama ukukhipha okuthile obekudliwa wushaka ongumhlengikazi kuwumsebenzi ongenakwenzeka.
Okufanayo ngokufana nabanye oshaka ukuthi inama-gill slits avuliwe futhi angenaso iswim blindder. Leli qiniso linxeshezelwa ngokuba ne-buoyancy ephezulu esibindini sakho. Lesi sibindi sikhulu ngendlela exakile futhi sicebe kakhulu ngamafutha.
Ibanga nendawo yokuhlala
I-nurse shark inebanga elitholakala olwandle olushisayo. Isibonakaliso sokuthi lezi zindawo ziyizintandokazi zakhe ukuthi zikhona kakhulu emaphethelweni aseCentral America. Hhayi ngenxa yalesi sizathu, indawo yabo yokwabiwa ivaliwe kulezi zindawo, kepha futhi inweba nezindawo eziningi ezisenyakatho njengeNew York. Lapho kukhona oshaka abaningi abangabahlengikazi emhlabeni kuzungeze izwekazi laseMelika kuzo zombili izilwandle zasePacific nase-Atlantic.
Mayelana nendawo ehlala kuyo Singayithola ekujuleni kwamamitha angama-70 nasendaweni enesihlabathi nodaka.
Ukuziphatha
Noma kubukeka kusabisa, ushaka ongumhlengikazi akanalo nolaka nhlobo ngaphandle uma ezizwa esongelwa noma ehlasela indawo yakhe yokuhlala. Isibonelo, kube nezimo ezithile lapho umlomo wakhe ubuvaleke ngamakhemikhali futhi ukuze uvuleke, kusetshenziswe i-titanium forceps futhi usebenzise amandla amakhulu. Azinabungozi ngoba kwamanye ama-aquariums kusetshenziswe ezinye izinhlobo ukuze izivakashi zikwazi ukugibela kuzo. Ukuthambekela kwabo ekuziphatheni akunandaba.
Ukondla nokukhiqiza kabusha ushaka ongumhlengikazi
Ngokuqinisekile abaningi bayazibuza ukuthi laba oshaka bangondla kanjani uma umlomo wabo umncane kunabo bonke abanye. Ukwehlisa lesi simo, ushaka usebenzisa indlela yokudla equkethe ukuncela ama-crustaceans nama-mollusk ukuze kamuva awachoboze ngamazinyo alo agobile futhi abukhali. La ma-mollusk nama-crustaceans akha iningi lokudla kukanesi kashaka.
Bangaphinde badle amanye ukhukhamba nama-oysters abawatholayo ngenkathi bekhukhuleka ebusuku.
Mayelana nokuzala kwawo, kuyefana nokwazo zonke izinhlobo zoshaka. Ukuhlangana kwabo nokukhulelwa kungaphakathi. Kulokhu sine-ovoviviparous reproduction. Lokho kusho ukuthi, abesifazane bayakwazi ukugcina amaqanda ngaphakathi bese imibungu izondla ngesakhi ngasinye somzimba umama angasinikeza.
Ukuze isenzo sokukhwelana senzeke kumele senziwe emanzini angajulile. Ekubekeni ngakunye bayakwazi ukukhiqiza abaphakathi kuka-21 no-28 abasha. Kusukela lapho izingane zihlukaniswa nonina kufanele zizimele ngokuphelele. Ukufunda ukuzilungiselela ngokwakho kubaluleke kakhulu uma ufuna ukukhula nokuphila ezimweni ezinhle. Kuvamile ukuthi ezinsukwini ezimbalwa zokuqala ngemuva kokuzalwa kubonwe isimilo esidla abantu ukuze kuqedwe indlala yabo ekhulayo nenkanuko yegazi.
Izintshisakalo zomhlengikazi kashaka
Phakathi kokulangazelela lo shaka anakho, siyabona ukuthi, yize kuyisilwane esinokuthula kakhulu futhi esingenabungozi, siyindawo enkulu ngokweqile. Iyakwazi ukuhlala endaweni ethile kuze kube yiminyaka emine. Kwesinye isikhathi kungabonakala ukuthi kunodlame kwezinye izinhlobo noma abanye abantu abasondela endaweni abahlala kuyo. Uma eseyamthanda, uyazalwa, uma engasuki kude nonina eyedwa kungapheli isikhathi esingangesonto, kungenzeka kube ngumama uqobo ogcina esesidla.
Bayakwazi ukuzwa igazi lezinye izilwane kusuka ebangeni elingaphezu kwamakhilomitha ayisihlanu. Ngokuya ngohlobo lwamanzi olwandle ngaleso sikhathi, leli banga lingaba likhulu nakakhulu.
Ukuba yizinhlobo ezingenabungozi kubantu, kubhekwa njengezisongelwayo. Isibalo soshaka abazingelwa ngokungemthetho ngenxa yalokhu kufinyela sikhulu kakhulu. Icala eliyisipesheli elenzeka ngoJuni 15, 2009 lenze ukuthi izinhlangano ezilwela amalungelo ezilwane zihlazwe yilo. Kulokhu, kwakuthunyelwe iziqukathi ezingama-20 ezinamamitha ayishumi nambili ubude ngasinye esishiya itheku laseYucatan libheke eSpain. Lokhu kuthunyelwa kumiswe ngamaphoyisa kwatholakala ukuthi kugcwaliswe oshaka abaqhwa ngaphakathi. Okubi kunakho konke, kungukuthi ngaphakathi kukashaka ongumhlengikazi ofriziwe kwakukhona cishe i-200 kg ye-cocaine.
Ochwepheshe bathi ukuzingelwa okukhulu kwalezi zilwane kungadala izinkinga ezinkulu emvelweni yasolwandle. Lokhu kungenxa yemithelela eyenziwa yizilwane ezibanjiwe ochungechungeni lokudla.
Ngiyethemba ukuthi ngalolu lwazi ungafunda kabanzi nge-nurse shark.