Abantu bahlala bezama ukwenza iimeko ezizodwa kunye neendawo ezihambayo. Nangona kunjalo, indalo iyodwa iyakwazi ukusimangalisa ngembonakalo yomhlaba kunye izinto ezimangalisayo. Kule meko siza kuchaza ukuba yenziwe njani ulwandle olubomvu. Igama layo kungenxa yesizathu esiza kuchaza kweli nqaku kwaye nesayensi ikwazile ukusombulula. Ukusukela kumaxesha amandulo bekucingelwa ukuba olu lwandle lwaluneempawu zobugqi ngenxa yombala ongaqhelekanga.
Ngaba uyafuna ukwazi yonke into malunga noLwandle oluBomvu? Qhubeka ufunda kwaye uya kufumanisa.
Ulwandle olubomvu kunye neempawu zalo
Olu lwandle lumangalisayo lubekwe kuLwandlekazi lwaseIndiya. Phakathi kwamazwekazi aseAsia naseAfrika siyalubona olu lwandle, isiphumo sesenzeko. Indawo ekuyo i malunga ne-450.000 yeekhilomitha ezizikwere. Imalunga ne-2.200 km ubude kunye ne-500 yeemitha ubunzulu. Elona nqaku linzulu lirekhodwe malunga ne-2130 yeemitha ngaphantsi komphakamo wolwandle.
Iqondo lobushushu lolu lwandle aluhluki kakhulu ngenxa yeemeko zokusingqongileyo. Kuthathelwa ingqalelo lolona lwandle lufudumeleyo emhlabeni kuba amaqondo obushushu aphakathi kwama-2 nama-30 degrees. Amaqondo obushushu asezantsi arekhodwe ebusika kwaye ehlotyeni afikelela kwelona liphezulu.
Inetyiwa ephezulu kakhulu ngenxa yamaqondo obushushu aphezulu. Ukufudumala, izinga lokukhuphuka kwamanzi liphezulu, ukwenzela ukuba ityuwa inyuse uxinzelelo lwayo. Kwelinye icala, njengoko inemvula encinci, ayiwahlaziyi amanzi, yiyo loo nto inyusa ityuwa nangakumbi.
Ezi meko zezenza ukuba olu lwandle lube nezilwanyana ezimbalwa kakhulu kunye neentlobo zezityalo, kodwa zahlukile. Ezi ziintyatyambo kunye nezilwanyana ezilungelelaniswe emva kwamawaka eminyaka ukuya kwimeko yangoku yokusingqongileyo. I-10% yazo zonke iintlanzi emhlabeni zihlala kulo lwandle kwaye ngenxa yemfudumalo yamanzi, izixhobo zamanzi zekorale zingakhula kakuhle. Uninzi lwabo Bayakwazi ukufikelela kubude beekhilomitha ezingama-2000. Iingqaqa zekorale zinexabiso eliphezulu lendalo kuyo yonke imisebenzi abanayo kunye neentlobo eziphilayo ezibulela kubo.
Sikwafumana ezinye iintlobo zofudo ezifana green, leatherback kunye hawksbill Ufudo kunye nezinye ezisengozini yokuphela.
Uqeqesho
Zininzi izazinzulu eziye zabuza kule minyaka idlulileyo ukuba lwenziwe njani olu lwandle. Ithiyori eye yaphumelela kakhulu kule nto yile ibonisa ukuba yavela kwiminyaka engama-55 yezigidi eyadlulayo xa yayisenzeka Ukwahlukana phakathi kwe-Afrika kunye ne-Arabia peninsula. Oku kwenzeke ngokusekwa kwelizwekazi lasePangea kwaye kuyacaciswa ithiyori yelizwekazi.
Xa ukwahlulwa kwenzeka, ukuqhekeka okushiyeke kugcwele amanzi ngokuhamba kwexesha. Laqala ukwenzeka ke olu lwandle. Namhlanje, njengoko sisazi ukuba enkosi tectonics ipleyiti, oku kwahlukana kusasebenza, ke ulwandle luyaqhubeka nokukhula ngaphezulu. Ngenxa yoko, umgangatho wolwandle unyuka malunga neesentimitha eziyi-12,5 ngonyaka. Oku kuyakubangela utshintsho kwimeko yoLwandle oluBomvu kwaye, mhlawumbi, emva kwezigidi kunye nezigidi zeminyaka, unokuba lulwandle. Oku kuchasene noko kuya kwenzeka kuLwandle lweMeditera, oluya kuthi luphele lunyamalale xa kuvalwa iStrait of Gibraltar.
Kutheni igama loLwandle oluBomvu
Yinto wonke umntu afuna ukuyazi kuba igama loLwandle oluBomvu alinikwanga kuba amanzi anombala obomvu oyinyani. Eli gama livela ubukho be-cyanobacterial algae ekhoyo elwandle. Kungenzeka ukuba ezi algae kunye necyanobacteria banoxanduva lwamaza abomvu avela kolu lwandle. Amaza abomvu ayenzeka ngenxa yokugqabhuka kwamaxesha onyaka okwenzeka kufutshane nomphezulu wolwandle. Ezi algae zezona ziwenza amanzi abe bomvu. Ayibomvu ngolu hlobo, kodwa ibomvu. Le nto inokuqatshelwa emanzini aseCaribbean.
Kufunyenwe ukuba, ngenxa yeemeko zokusingqongileyo apho ulwandle lufunyenwe, uxinizelelo lwe-algae lukhulu kakhulu. Ngamaxesha athile onyaka, afikelela kubungakanani bokuthi akwazi ukujika amanzi abomvu. Ingxaki iza xa kukho abantu abaninzi kakhulu be-algae kwaye baba ngabakhuphiswano. Ummandla kunye nokukhanya akwanele ukubonelela ngeemfuno zazo zonke i-algae kwaye iphelela ekufeni.
Le yinxalenye yemijikelo yebhayiloji yohlobo ngalunye kwaye, kule meko, uxinizelelo lwendalo luyanda okanye linciphise njengoko amaxesha edlula. Ngamaxesha onyaka apho uxinzelelo lwe-algae lusezantsi, umbala awubomvu kodwa umdaka. Abona bakholwayo ngabo bacinga ukuba uLwandle oluBomvu luvele kwibali likaMoses. Njengoko amanzi ahlukanayo ukuze akhulule abantu bakhe kwaye alandelwe ngama-Egypt, la manzi abala abomvu ligazi labo.
Ukubonakaliswa kwesibhakabhaka
Enye ithiyori malunga nemvelaphi yalo mbala ungaqhelekanga wamanzi yile ithi ngenxa yesibhakabhaka. Iingxondorha zeentaba ezikufutshane noLwandle Olubomvu zibomvu kwaye zinokubonwa emanzini ayikho enye into ngaphandle kokubonisa isibhakabhaka kunye neentaba ezijikelezileyo. Le hypothesis ingayichaza kakuhle le nto kuba iNtaba yeSinayi ibekwe kufutshane noLwandle oluBomvu kwaye ibomvu ngombala ngenxa yezimbiwa zayo zentsimbi. Ezi ntaba zikwabizwa ngokuba ziintaba zerubhi.
Ngeeyure zakusasa isiganeko selanga esikhanyayo ezintabeni senza umbala obomvu ubonakalise emanzini. Inokuba yingcaciso kuyo. Nangona kunjalo, kukwakho nabo bacinga ukuba imitha ethambekileyo efikelela kuthi ukusuka emva kwemini inokuchaza umbala osemanzini.
Ngokwam, ndicinga ukuba ithiyori ye-cyanobacteria kunye ne-algae yeyona ibonisiweyo, kuba igazi elinyibilikisiweyo lama-Egypt alinakuhlala likho emanzini njengoko liza kunyuka ngokuhamba kweminyaka kwaye ukubonakaliswa kweentaba kunye nesibhakabhaka kuya kuxhomekeka yeyure zomhla. ULwandle oluBomvu luhlala lucwecwe ngendlela efanayo, luyahluka kuphela ngexesha lonyaka, elihambelana ithiyori ye-cyanobacteria kunye ne-algae ebomvu.
Ndiyathemba ukuba ngolu lwazi ungafunda ngakumbi malunga nolwandle olunomdla.