EMoscow Okthoba 30th. I-INTERFAX.RU - Izazi zebhayoloji zitholakele okokuqala futhi zakwazi ukuphenya ngohlobo lwe-whale olungajwayelekile kakhulu - i-minke whale ka-Omura, kubika i-BBC. Ososayensi bathola bonke abantu ogwini lwaseMadagascar.

Phambilini, ukuba khona komkhomo we-Omura kwakwaziwa ngokubonga kuphela kwezinsalela zomkhomo. Ngo-2003, izazi zezinto eziphilayo zaseJapan zamemezela ukuba khona kwalesi zinhlobo, kepha azikwazanga ukubona abantu abathile bomiba be-minke whale, ongafinyelela amamitha ayi-12 ubude. Umkhomo wabizwa igama lakhe ukuhlonipha omunye usosayensi owawuthola.

Futhi manje kumenyezelwe ukuthi ososayensi bakwazi ukuthola umkhomo we-minura whale ka-Omura endaweni yabo yemvelo. Lolu cwaningo lushicilelwe ephephabhukwini iRoyal Society Open Science.

Emuva ngo-2011, iqembu laphesheya kwezilwandle, elalisebenza ogwini lwaseMadagascar futhi lafunda amahlengethwa, lahlangana nemikhomo emithathu engajwayelekile. Lapho-ke abaphenyi bacabanga ukuthi lesi esinye isidalwa esingandile - i-Bryd's minke. Ngemuva konyaka, baphinde babona izilwane eziningana, bese izazi zebhayoloji sezikwazi ukubona ukuthi okungenani eyodwa yazo akuyona i-minke kaBryde.

Ngo-2013, izazi zebhayoloji zanquma ukusuka kude nolwandle futhi zisebenze ekujuleni lapho zisheshe futhi zahlangana neqembu lemikhomo. Manje sebekwazi ukubhekisisa izilwane futhi baqiniseke ukuthi kwakungeyona i-minke yoMlobokazi.

Ngo-2014, ukuhlolwa kofuzo kwaqinisekisa ukuthi bangama-Omura minke whales, yize ngaphambili bekukholelwa ukuthi indawo abahlala kuyo isempumalanga kakhulu. Ngemuva kwalokho kwangenzeka ukuthi kuqinisekiswe ukuba khona kwamakhophi angama-44.

Imivimbo u-Omura unomzimba omude omude onombala we-asymmetric: ingxenye yabo yangakwesokudla yomzimba ibimhlophe ngokwedlula kwesobunxele. Imivimbo emnyama nemnyama namabala anwebeka kusuka esweni lokunene kuya kowe-pectoral. Lo mbala wenza umuntu ngamunye ahluke. Le mikhomo emi minke ithanda ukuhamba yodwa, kepha ingenza imisindo ephansi kakhulu, lapho ososayensi bephakamise ukuthi izilwane ngezikhathi ezithile zingahlangana ezikoleni.

Izazi zebhayoloji azikakutholi kahle lokho okudliwa whale ka-Omura. Kepha abanye ochwepheshe bezolwandle babona ukuthi, njengezinye izinhlobo eziningi zemikhomo, bakha amanzi emilonyeni yabo futhi bawadedele besebenzisa i-whalebone, lapho kuhlala ipulankton.

I-Omura enemigqa isengozini ngenxa yokukhiqizwa kawoyela endaweni yaseMadagascar.

Isici esihlukile salezi zilwane amamaki emhlathini ongezansi.

Ososayensi baseNew England Aquarium bakwazile ukuthwebula imikhomo engandile yohlobo lwe-Balaenoptera omurai kuvidiyo. Isikhathi eside, imikhomo yalolu hlobo yadidaniswa nabanye abamele i-cetacean oda, kodwa ngo-2003 ukuhlolwa kofuzo kwaqinisekisa ukuhluka kwabo. Ngeshwa, yonke imininingwane ngofuzo ngabo itholwe ngezicubu ezifile zezinhlobo.

Le mikhomo, ebude bayo ukusuka kumamitha ayi-10 kuye kwayi-11.5, ihambe isikhathi eside ingaziwa. Kuphela ngo-2011, iqembu lososayensi lakwazi ukubathola befika ogwini lwaseMadagascar. Ososayensi banqume ukuhlola le ndawo ngokuningiliziwe. Ngo-2015, ochwepheshe bakwazi ukunikeza incazelo eningiliziwe yezinhlobo kanye nesici sokuziphatha kwabo.

Manje futhi banayo ividiyo ekhombisa izilwane ezincelisayo ezingavamile ezinamamaki wokulinganisa emhlathini ongezansi.

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