I-Atlantic Ocean ngokomlando ibiyindawo yokudoba okusebenzayo. Sekungamakhulu amaningi eminyaka umuntu ekhipha izinhlanzi nezilwane emanzini, kodwa umthamo wawungeyona ingozi. Konke kwashintsha lapho ubuchwepheshe buqhuma. Manje ukudoba sekukude nendawo yokuqala ohlwini lwezinkinga zemvelo.
Imisebe ukungcoliswa kwamanzi
Isici soLwandlekazi i-Atlantic singabizwa ngokungena ezintweni ezahlukahlukene ezinemisebe emanzini. Lokhu kungenxa yokuba khona kwamazwe athuthukile agudle ulayini osogwini anamandla amakhulu. Ukukhiqizwa kukagesi emacaleni angama-90% kuhlotshaniswa nemisebenzi yezikhungo zamandla enuzi, udoti wazo ophonswa ngqo olwandle.
Ngaphezu kwalokho, yi-Atlantic ekhethwe amazwe amaningi ukuba ilahle imfucumfucu enemisebe evela ezikhungweni zocwaningo lwesayensi nasezimbonini. "Ukulahlwa" kwenziwa yizikhukhula emanzini. Kukhulunywa nje, iziqukathi ezinezinto eziyingozi zimane ziphonswe olwandle. Ngakho-ke, ezansi kwe-Atlantic kuneziqukathi ezingaphezu kuka-15,000 ngokugcwaliswa, lapho i-dosimeter ingeke ithule khona.
Izehlakalo ezinkulu kakhulu zokulahla udoti olwandle yilezi: ukucwiliswa okuhleliwe komkhumbi waseMelika onomthambo wegesi "iZarin" ebhodini kanye nokulahlwa kwemiphongolo engu-2 500 yobuthi evela eJalimane emanzini.
Imfucumfucu enemisebe ilahlwa ngeziqukathi ezivaliwe, noma kunjalo, ziyacindezelwa ngezikhathi ezithile. Ngakho-ke, ngenxa yokucekelwa phansi kwegobolondo leziqukathi, ulwandle lwalungcoliswe endaweni yamazwe aseMaryland naseDelaware (USA).
Ukungcoliswa kukawoyela
Imizila yamathangi kawoyela iwela i-Atlantic Ocean, kanti izifundazwe ezisogwini nazo zinemboni ekhiqiza uwoyela. Konke lokhu kuholela ekungeneni kwamafutha ngezikhathi ezithile. Njengomthetho, ngenkambo ejwayelekile yezinqubo, lokhu kuyakhishwa, kepha ukwehluleka kwenzeka njalo ezifundeni ezahlukahlukene.
Icala elikhulu kunawo wonke lokukhishwa kukawoyela olwandle i-Atlantic nasePacific kwaba ukuqhuma endaweni yesikhulumi samafutha i-Deepwater Horizon. Ngenxa yengozi, kudedelwe imigqomo kawoyela engaphezu kwezigidi ezinhlanu. Indawo yokungcola iphume yaba nkulu kakhulu kangangokuba indawo enodaka enodaka ebusweni bamanzi yayibonakala ngokusobala kusukela ekuzungezeni komhlaba.
Ukubhujiswa kwezitshalo nezilwane ezingaphansi kwamanzi
Njengoba kushiwo ngenhla, i-Atlantic Ocean isetshenziselwe ukudoba amakhulu eminyaka. Ekuqaleni kwekhulu lama-20, inqubekela phambili kwezobuchwepheshe yathuthuka kakhulu futhi yanikeza amathuba amasha okudoba ezimboni. Lokhu kuholele ekwandisweni kwenqwaba yezinhlanzi. Ngaphezu kwalokho, isabelo sokuzingela ngokungemthetho sikhuphukile.
Ngaphezu kwezinhlanzi, i-Atlantic Ocean inika abantu nezinye izidalwa, njengemikhomo. Izilwane ezincelisayo ezinkulu zaqothulwa cishe ngokusungulwa kwenganono ye-harpoon. Lo mshini wakwenza kwaba nokwenzeka ukudubula umkhomo ngohagelo ukude, ngaphambili okwakudingeka wenziwe ngesandla kusuka ebangeni eliseduze eliyingozi. Umphumela walobu buchwepheshe kwaba ukwanda okusebenzayo kokuzingelwa kwemikhomo kanye nokwehla okukhulu kwamanani abo. Emuva ngasekupheleni kwekhulu le-19 leminyaka, imikhomo e-Atlantic Ocean yacishe yanyamalala.
Abantu abahlala ekujuleni kolwandle abahlushwa nje kuphela ngokuzingelwa kwabo, kodwa futhi nangenxa yoshintsho lokuzenzela ekwakhiweni kwamanzi. Ishintsha ngenxa yokungena kwezinto ezifanayo ezinemisebe egqitshiwe, qeda amagesi avela emikhunjini nakowoyela. Izilwane nezitshalo ezingaphansi kwamanzi zisindiswa ekufeni ngosayizi omkhulu wolwandle, lapho kuncibilika khona izinto eziyingozi, zidale ukulimala kwasendaweni kuphela. Kepha nakulezo zindawo ezincane lapho kutholakala khona ukukhishwa okunoshevu, izinhlobo zonke ze-algae, i-plankton nezinye izinhlayiya zokuphila zinganyamalala.
