Ababani Aba Bavakalisi Bamaxesha Ngamanzi WaseHawaii?
Ukususela ngoNovemba ukuya kuMeyi, amanzi aseHawaii ahanjelwa ngamashumi angama-1000 ama-hampback whales.
Le mibhobho ehambileyo idlulele emanzini afudumele eHawaii ukusuka kwintshona ekude njengama-Aleutian Islands ase-Alaska, njengasempuma njengeGlacier Bay kunye nakumazantsi njengeiFalallon kwiiLwandle zaseCalifornia.
Kutheni Kuthiwa Ukuzihlaziya KuHawaii?
Le mibhobho ephilileyo ifika emanzini afudumele eHawaii apho izalisa khona, ithole, kwaye inakekele abantwana bayo.
Uhambo olungama-3500-mayela ukusuka kwiindawo zabo zokutya zasehlobo zithatha phakathi kweenyanga ezimbini.
Iqinisekisa ukuba abafazi abakhulelweyo kunye noomama abanamathole amasha bachitha ubuninzi bexesha labo kumanzi afudumele eHawaii.
Amathole e-Humpback asakhulelwe aze azalwe kufuphi neIwaii Islands. (Ixesha lokubanjwa kwesibini liphakathi kweenyanga ezili-10-12.)
Masifunde ngolwazi olusisiseko malunga neendwendwe zaseHawaii zonyaka.
Yintoni i-Humpback Whale?
I-wimpuphu i-hummpback iyona yesihlanu ngobukhulu beemikhomo ezinkulu zehlabathi.
Igama layo lezesayensi, i-Megaptera novaeangliae, lanikwa lona ngo-1781 ngumntu waseJalimane obizwa ngokuthi nguBorneki, onentsingiselo ethi "iNkulu-nkulu yeWinger England", ngokubhekiselele kubukhulu beemfesane ezinkulu zemsila kunye nelokuba kwakubonwa wonxweme eNew England.
Igama eliqhelekileyo eliqhelekileyo lesiNgesi le-humpback libonakala livela kwindlela yokulwela kwezilwanyana ukujikeleza umqolo wayo xa udilika.
I-wimpuphu yempuphu ibomvu-omnyama, omnyama obomvu kumnyama omnyama ngombala, kunye nebala elimhlophe ukuya ngaphantsi kwamanzi angabonakalisa amanqaku amnyama ahlukeneyo ngokwemihlathi yamanye. Kuye ngala manqaku, kwaye ngokukodwa okufunyenwe emsila, loo mahawulu ngabanye angabonwa kwaye iipatheni zabemi kunye nezifudukayo zibhaliswe.
Iimpuphu ezinamahlombe nazo zinamaphiko (okanye iipectoral fins,) ezifumaneka kwicala ngalinye lemizimba yazo. Ezi zisetyenziselwa ukujika nokuhamba. Ama-Whales zizilwanyana ezilwanyana, njengezidalwa zabantu, kwaye ezi zibopheko ziyi-forelimbs ziguqulwe, kunye nesakhiwo sesithambo esifana nesesandla somntu kunye nengalo.
Xa zizalwe, amathole anesisindo semilinganiselo engama-3000 iipounds kunye nobubanzi ukusuka kwi-10-16 ubude ubude. Ziyakhula ukuya phakathi kwama-40-52 ubude ubude, kunye namabhinqa abe mkhulu kunamadoda.
Iimpuphu epheleleyo ikhula malunga neetoni enye ngeenyawo, okanye malunga ne-84,000 - 90,000 iipounds. Abaphandi bacinga ukuba iingxaki zihlala phakathi kweminyaka engama-40 ukuya kuma-60.
Yintoni i-Humpback Whales Eat?
Iimbumba ze-humpback zidla ukutya ngaphakathi kweenyawo eziyi-150-160 zamanzi.
Impango yeNyakatho yePacific idla i-plankton okanye intlanzi encinci yeenkolo ezifana ne-mackerel ne-Pacific saury. Iifayili zihluza ukutya kwazo kumanzi amaninzi aneentlanzi eziswe emilonyeni yazo. Iimbumba ze-humpback zinezikhukhula ezikhulayo zomlomo eziphakamisa amandla abo emilonyeni ngexesha lokutya.
Emva kokuba konke ukutya kukhona emlonyeni, umlomo uvaliwe kwaye amanzi agxothwe. Okwangoku, ukutya kubanjwe kwizinto ezibizwa ngokuthi "iipilisi ze-baleen" kwaye zigqitywa.
I-Baleen ikhula kuyo yonke imilwane yobomi. I-Baleen ibizwa nangokuthi i-whalebone. I-Baleen iqulethe uluhlu lwezinto ezizinzileyo, eziguquguqukayo ezixhomekeke kumhlathi ophezulu.
Ingaphakathi le-baleen ihlanganiswe ngamacwecwe enyunu e-filter plankton, i-krill kunye neentlanzi ezincinci. I-Baleen yenziwe ngekeratini (into efanayo kunye neenkontshe kunye neenwele zenziwa).
Ukuzithoba kungadla iitani zokutya ngexesha lemihla. Ngokuqhelekileyo, ngoko ke, abayondli ngenkathi esemanzini aseHawaii, indawo yabo yokuzala ebusika.
Ungayibona Njani I-Humpback Whale?
Eyona ndlela efanelekileyo yokubona iimbombo zeHuwaii eHawaii ihamba ngeenqanawa ezihlelekile. Nangona kuninzi kunikezelwa kwiiqithi eziphambili, ezilungileyo kakhulu zii-tours ezinikezwa yiPacific Whale Foundation kwi-Maui.
I-Pacific Whale Foundation yinhlangano engenzi nzuzo eyasungulwa ngowe-1980 ukugcina imikhomo ekupheleni.
I-eco-tour nganye iphambili ilawulwa yiengcali ze-whale eziza kuchaza ngokubanzi iinkcukacha zokuziphatha kweemikhomo kwaye zikuncede uzibonise ngomkhumbi wakho. Kwiinqanawa ezininzi uya kuba nako ukuva izandi ezona zikhoyo kwiilwandle ezijikelezile.