Imikhomo eluhlaza okwesibhakabhaka isishintshe iTune yayo

Eminyakeni engamashumi ambalwa edlule izingcingo ze-whale eziluhlaza okwesibhakabhaka bezilokhu zithola imvula - futhi ukuphindisela ezingenisweni zazo kungaba yisizathu. UChristopher Intagraata uyabika.

Imikhomo eluhlaza okwesibhakabhaka yizilwane ezinkulu kunazo zonke ezake zaba khona emhlabeni. Kepha banzima ukulandelela. Ngoba bahlala ngaphansi kwamanzi lapho singena khona kalula ukuba sibabone kalula - futhi kaningi ezindaweni ezikude, njengolwandlekazi oluseningizimu. Kepha izingoma ze-Whales` zingahamba amakhulu amakhilomitha ngaphansi kwamanzi- ngakho ososayensi bavame ukubalalela esikhundleni salokho.

Kepha lezi zesazi sezinto eziphilayo zibonile inkambiso engaqondakali: ukuthi ezinye izingcingo eziluhlaza okwesibhakabhaka zinciphisa kancane kancane nge-pitch, ngokuhamba kwesikhathi. Isibonelo, lapha kubiza u-2002, kulandelwe munye kusuka ngo-2017. <2002-2017 Ucingo>

"Kubonwe ku-Blue Whale States emhlabeni jikelele. Ngakho-ke le nto kufanele ibe nencazelo yomhlaba wonke." U-Emmanuelle Leroy ungudokotela we-bioacoustician e-University of New South Wales e-Australia, owenze umsebenzi e-University of Brest eFrance.

Iqembu lakhe likuqinisekisile le nto liyaliqiniso ngenxa yezizwe ze-popu eziluhlaza okwesibhakabhaka oLwandlekazi oluseningizimu ye-Indian Ocean, futhi. Futhi baphakamisa ukuthi isizathu esisodwa kungenzeka ukuthi izinombolo ze-Whale ziye zaphinde zabukezela ezinsukwini zikaCaptain Ahabi. Imikhomo engaphezulu isho ukuthi abantu abangafanele bamemeze ngokuzwakalayo ukuze bazwakale eminye imikhomo. Futhi ngenxa yokungafani kwe-anatomical ngendlela okwakuhlabelela ngayo imikhomo ecula, othambile bacula, engeza umgodi.

Ososayensi banomunye umbono, futhi, okungenzeka ukuthi kungenzeka ukuthi basebenza ekhonsathini ngeyokuqala: okuyiyo leyo mikhomo icula kabanzi - futhi ngenxa yalokho amanzi ajulile - ngoba amanzi olwandle andayo aphethe izingcingo zawo. Ukubhala okugcwele ku-Journal of Geophysical Research: Oceans. [Emmanuelle C. Leroy et al.

ULeroy nethimba lakhe babona enye indlela yesikhashana: Izingoma eziseningizimu yeBlue Whales` empeleni ziphakeme ngokuphakama ngesikhathi ehlobo lase-Austral. Mhlawumbe emzameni wokuzwakala ngokuqhekeka kwe-icebergs.

"Njengokuthi lapho ubeka i-cube ye-ice esiphuzweni sakho, ungakuzwa ukuqhekeka. Ngakho-ke kuyafana nge-iceberg - ngakho-ke kuzoba Ngqo ngempela futhi uzwe ngaphesheya kwe-basin olwandle."

Ukuxazulula lezi zimfihlakalo ngokweqiniso, ososayensi bathi sizoqhubeka silalele, futhi sibheke izakhiwo eziguqukayo zamakhemikhali neze-acoustic zolwandle. Ukubona ukuthi yimiphi yale mibono eqhutshwa. Futhi abangabambeni amanzi.

Ngaphezu kwalokho, uma unentshisekelo ephepheni lesikebhe lesikebhe e- EVA noma i - EVA SUP Pad & Eva Traction Pad , sicela ukhululeke ukuxhumana nathi.

Iqembu le-Hellors

2018.12.21

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