Ookrebe zizidalwa ezinomdla nezingaqondwa kakuhle eziye zahlala elwandle kangangezigidi zeminyaka, ziyinxalenye ebalulekileyo yezilwanyana kwindalo yaselwandle. Engaphezulu kwe Iindidi ezingama-400 zookrebe Ekhoyo namhlanje, nganye ineempawu zayo ezahlukileyo kunye nesakhono sayo, inokufumaneka kwiindawo ngeendawo zokuhlala kwaye zaziwa ngokuziqhelanisa nesakhono sazo sokusinda. Kweli nqaku, siza kuphonononga ezinye zezona ntlobo zimangalisayo nezingaqhelekanga zookrebe kunye neempawu zabo ezizodwa ezibenza babe zizilwanyana ezimangalisayo ngokwenene.
Iintlobo zeekrebe kunye neempawu zabo
Kweli candelo, siza kuxoxa ngezinye zeentlobo zookrebe ezaziwayo kakhulu kunye neempawu ezibenza bahluke.
- Ukrebe omhlophe: Lolona didi lokrebe lubalaseleyo noloyikwayo ngenxa yobukhulu, amandla kunye nobuchule bokusebenzisa abanye. Ukrebe omkhulu omhlophe unokufikelela kwiimitha ezi-6 ubude kwaye unobunzima obungaphezu kweetoni ezi-2,5. Ookrebe abakhulu abamhlophe baziwa ngokukwazi ukutsiba ngokupheleleyo emanzini, okubizwa ngokuba yi-hunting breaching, abathi ngayo babambe amaxhoba abo, ngokuqhelekileyo amatywina kunye neengonyama zolwandle.
- Ingwe ekrebe: Lolona didi lokrebe lwesine ngobukhulu, kwaye sesinye sezona zilwanyana zihlaselayo elwandle. I-tiger shark inemigca emnyama ehamba ubude bomzimba wayo, inika igama layo. Noko ke, le migca iyaphela njengoko isilwanyana sikhula. Ngokutya okubanzi, ookrebe batya yonke into ukusuka kumafudo, imitha kunye nezinye iintlanzi, ukuya kwizinto ezingaphiliyo ezifana namatayara kunye neepleyiti zelayisensi.
- I-Hammerhead ukrebe: Ngehamile yayo, luhlobo oluqaphelekayo noluhlukileyo lokrebe. Le milo yentloko ibonelela aba shark ngebala elibanzi lombono kwaye ibavumela ukuba babeke ngokuchanekileyo ixhoba labo, ubukhulu becala imitha kunye neentlanzi ezincinci ezinamathambo, besebenzisa ii-electroreceptors ezikhethekileyo.
iindawo zokuhlala kookrebe
Ookrebe bahlala kwiindawo ezahlukeneyo zolwandle, ukusabalalisa kwabo ngokwejografi kunye nobunzulu abafunyanwa kuzo buyahluka ngokuxhomekeke kwiintlobo, ubushushu kunye nokufumaneka kokutya.
El Ukrebe omhlophe Luhlobo oluhlala kumanzi apholileyo nabandayo elunxwemeni, aqhele ukubonwa kufutshane nonxweme loMzantsi Afrika, iOstreliya, iKhalifoniya kunye nempuma yeUnited States. Kwelinye icala, i Ingwe ekrebe Ifumaneka kumanzi ashushu, ashushu kufuphi nonxweme lwaseHawaii, kuMbindi Merika, nakwiCaribbean. Ngeli xesha, i I-hammerhead ukrebe ikwathanda amanzi ashushu, ashushu, kodwa inokufumaneka kwiindawo ngeendawo ezahlukeneyo kuquka amanzi angekho nzulu kufutshane nonxweme kunye nomgangatho onzulu wolwandle.
Uhlengahlengiso kunye neZakhono zokuSinda
Ookrebe baneendlela ezahlukeneyo zokuziqhelanisa ezibavumela ukuba babe ziziqwenga ezibalaseleyo kwaye baphile kwiindawo zabo zokuhlala. Ezinye zolu hlengahlengiso ziquka:
Ukuziphatha kwentlalo kunye nokuzala
Iindlela zokuziphatha kunye nokuzala kookrebe ziyahluka ngokweentlobo. Abanye, njengaye Ukrebe omhlophe, zibhekwa njengezodwa, ngelixa ezinye, njenge-hammerheads, zinokuba zentlalo ngakumbi kwaye zenze amaqela amakhulu abizwa ngokuthi "izikolo" okanye "abemi."
Ukuzala kookrebe kunokwenzeka ngeendlela ezintathu: i-oviparity (babeka amaqanda), i-ovoviviparity (amaqanda afakwe ngaphakathi kumzimba kamama kwaye azalwe ephila), kunye ne-viviparity (ukukhulelwa ngokuthe ngqo kwisibeleko sikamama kunye nokunikezelwa kwezondlo). Ezi mpawu zixhomekeke kuhlobo kunye nendawo afumaneka kuyo ukrebe.
Ulondolozo kunye nezoyikiso
Ulondolozo kunye nokukhuselwa kweentlobo ezahlukeneyo zookrebe kubalulekile ukugcina ulungelelwano lwendalo yaselwandle. Ookrebe bajongene nezoyikiso ezahlukeneyo, ezona zinto zibalulekileyo kukuloba ngokugqithisileyo kunye nokuzingelwa ngokungekho mthethweni kwamaphiko abo, inyama kunye neeoyile zabo. Bakwachaphazeleka ziimpembelelo zokutshintsha kwemozulu kunye nongcoliseko lolwandle.
Kubalulekile ukukhuthaza ukulondolozwa kookrebe ngophando, imfundo, kunye nokudalwa kwemithetho nemigaqo-nkqubo ekhusela iindawo zabo zokuhlala nokunciphisa izenzo eziyingozi kubo.