Beaked - UZiphius cavirostris G. Cuvier, 1823
Isigaba Sobuhlanga: I-3 - uhlobo olunqabile olunobuningi obuphansi. E-Russia, ithatha ingxenye eyingqayizivele yebanga.
Ukubhebhetheka: Uqhwaku lutholakala kuwo wonke amanzi afudumele, anomoya opholile futhi onesizotha woLwandlekazi Lomhlaba, ngaphandle kwezindawo eziphakeme, kepha luyindlala kuyo yonke indawo. Ibanga eRussia liyingxenye engabalulekanga ebangeni lezinhlobo. Emanzini aseYurophu aseRussia, umhlangano wawo kungenzeka kuphela eBaltic (amacala ama-2 okomisa ukuphuma abonakele) naseMpumalanga Ekude - eJapan, e-Okhotsk naseBering Seas [1,2]. Lapha uqhwaku luvame ukubanjwa empumalanga. ugu lweKamchatka (ukomisa eKronotsky Bay luyaziwa., endaweni yeRuril ridge futhi ikakhulukazi e-Commander Islands, lapho itholakala yodwa futhi ngamabili kusukela ngo-Ephreli kuze kube ngu-Okthoba. Kwezinye izifunda, uqhwaku laziwa kakhulu ukomiswa ku umngcele: ukusuka eTierra del Fuego, isiteshi sikaMasipala waseGood Hope, iTasmania naseNew Zealand kuya olwandle iBering Sea (Pribylova Island), North, Mediterranean and Baltic Seas [1,2,4]. ENorth Pacific enyakatho, ingena esiQhingini sasePribylov, i-Alaska peninsula, nase-Amchitki Island [1,10], eningizimu, yomisa eduze neSan Diego, iziQhingi zaseHawaii.
Indawo yokuhlala: Kufundwe kabi. Iningi lihlala esifundeni se-pelagic. Ukudla ikakhulukazi kuqukethe ama-cephalopods nenhlanzi ejulile yolwandle, futhi kunquma indawo ethile yezinhlobo. Ukuthomba kwenzeka kubude bomzimba obungu-5.2-5,5 m; ithole elisanda kuzalwa lifinyelela kumamitha angama-2,6-2.7 [10, 11]. Isikhathi sokuzala kanye nokuzala siyelulwa. Akakubekezeleli ukudingiswa: kunecala elaziwayo lomkhomo osemusha uhanjiswa e-California Aquarium, lapho ahlala khona isikhathi esingaphezu kosuku, eshayisana nezindonga echibini.
Amandla: Inani eliphelele lemilomo alaziwa, kunolwazi lwengxenye kuphela olutholakalayo. Ngo-1952-1962 Ogwini lolwandle i-Commander Islands ebude bungamakhilomitha angama-300, kukhululwe imilomo engu-16, kanti isibalo sazo kulesi sifunda asifinyelelanga izinhloso ezingama-30 [2,3]. Izindebe eziningi kakhulu empumalanga. Amanzi aseJapan, lapho izilwane ezi-3-10 zomile njalo ngonyaka, ikakhulukazi emabhange ehholo. ISagami ne-Izu Peninsula - okuyindawo enkulu yokudoba. Izici zokulinganisa aziqondakali kahle. Ukudoba, ukomisa nokungcoliswa kolwandle kuyizinto eziphambili ezivimbela isibalo semilomo. Okwamanje isikhathi sabantu bakhona siya ngokuya sincipha. Ukukhiqizwa kwaminyaka yonke eJapan kuze kube muva nje kufinyelele izinjongo ezingama-20- 40. Eminyakeni engu-1965-1970. AmaJapan athole izinhloso eziyi-189 (abesilisa abangama-132 nezinsikazi ezingama-57), ikakhulukazi emanzini wehholo. ISagami neSendai. Izinyanga eziphambili zokudoba (ngoFebhuwari-Mashi no-Agasti-Septhemba) zibonisa ukuthutha okwesikhashana kwezindebe. Iningi lazo lalivinjelwe ezindaweni ezondlekile kahle ngaphandle kwesinyathelo sezwekazi kanye nomugqa oxhumanisa ukujula okungu-1000 m. E-Russia, uqhwaku alukaze luzingelwe. Lezi zibalo ezilandelayo zikhombisa ubungako bokufa ngokuqothula ngaphandle: ngasogwini lweGreat Britain ngo-1913-1978. kube namacala angama-37, iFrance (kuphela ngonyaka we-1971) - 7, e-USA eminyakeni yamuva - amacala ayi-15 [9,10]. Izifo azifundwanga. Kuma-endoparasites, ama-roundworms (izinhlobo ezi-2 ezisezinso, 1 emathunjini) kanye nama-tapeworms (1 uhlobo emafutheni angaphansi) abonakala.
Ezokuphepha: Kubhalwe kuhlu olubomvu lwe-IUCN-96, Isithasiselo 2 seCITES, Isithasiselo 2 seBerne Convention.
Incazelo
Sikhula sifike kumamitha ayi-7 futhi singaba nesisindo samathani angama-2-3. Faka umbala kusuka kwimpunga emnyama uye nsundu. Ukuhlwitha kuyisiwula. Isikhathi sokuphila esibalelwa eminyakeni engama-40.
Izazi zezilwane zaseMelika zithole ukuthi uqhwaku yilona ophethe irekhodi lokujula nobude bokumba phakathi kwezilwane ezincelisayo zasolwandle. Isikhathi eside bekukholelwa ukuthi womabili la marekhodi angawezimpawu zasendlovu eziseningizimu: amacala okutshonelwa kwawo amamitha angama-2 388 nemizuzu engama-120 ayaziwa. Ososayensi enhlanganweni yocwaningo yaseMelika i- "Cascadia" bakwazile ukunamathisela ama-satellite kuma-fins wezindebe eziyisishiyagalombili, eziqopha i-dives ezimbili ezintsha. Isilwane esisodwa safinyelela kumamitha ayi-2,992, esesibili sahlala imizuzu eyi-137,5 ngaphansi kwamanzi.
Ngabe zibukeka kanjani imikhomo evutshiwe?
Ibhili-ekhokhisiwe - ama-cetaceans aphakathi nendawo: ubude bomzimba ukusuka kumamitha amane (i-Peruvian notch) kuya kumamitha angaphezu kwayi-12 (ukubhukuda enyakatho). Umzimba unamandla, unomoya, ubanzi kakhulu phakathi. Amaphinifa we-pectoral mancane; kwi-notch, aphinda abuyele emakhaleni ezinhlangothini zomzimba (uma zingasetshenziswanga ukuqondisa).
I-dorsal fin incane, itholakala kude le 2/3 yobude bomzimba kusuka ekhanda. Amakamela womsila abanzi uma uqhathaniswa namanye ama-cetaceans; akukho phuzu phakathi kwamaqhubu. Phakathi kwemihlathi kukhona ama-3 fold folds - lokhu kuwuphawu lwesimo sazo zonke izindebe, ngaphambili ziyasondela, kepha ungahlanganisi. Kukholakala ukuthi la mafolda asetshenziswa ekufakweni kwenyamazane.
Akukho nhlobo kwezinhlobo ezinomhlambi ohlukanisa isigaxa ebunzini, otholakala kwamanye ama-cetaceans amaningi ngesiphuzo, ngokwesibonelo, amanye amahlengethwa. Kwezinye izinhlobo, ngokwesibonelo, kuyi-Atlantic notch, i-snout yinde futhi incane, kwezinye, ngokwesibonelo, ku-Kuyvierov umlomo, imfishane futhi ibutshiwe buthaka.
Isici esivelele kunazo zonke kulo mndeni ukwakheka kwamazinyo. Le mikhomo inamazinyo amabili noma amabili, aqhamukela kubantu abadala ngisho noma umlomo uvaliwe - lokho okubizwa ngokuthi “ama-husks”. Ngaphezu kohlobo lwe-Plavunov (Berardius), lo mkhakha uvela kwabesilisa kuphela. Umlomo weTasmanian kuphela ukuphela kwezinhlobo ezinamazinyo ngaphandle kwezicubu. Abesifazane nezilwane ezincane ezinhlotsheni eziningi zinamabala ngokuphelele. Kukholelwa ukuthi ukungabikho kwamazinyo kuhlotshaniswa nokukhethekile ekudleni kwama-squid, okuyinto abayibamba ngokumuncwa.
Imisebenzi isetshenziswa njengezikhali, kanti abesilisa cishe bazo zonke izinhlobo zimbozwe ngezibazi ezivela kulawa masiga. Indawo nokwakheka kwayo kwama-tusks kuhlukile ezinhlotsheni ezahlukahlukene (lesi sici sivame ukusetshenziselwa ukunquma izinhlobo).
Ngaphezu kwenombolo nendawo yamazinyo, ukwakheka kwebunzi nobude bethongo, umehluko wangaphandle phakathi kwabameli bomndeni awunalutho.
Izinhlobo zezindebe nendawo yazo yokuhlala
Emndenini wezindebe, okungenani kunezinhlobo ezingama-20 ku-6 genera. Ngokwesibalo sezinhlobonhlobo, bahlala endaweni yesibili ngokulandelana kwamaCetaceans ngemuva kwamahlengethwa. Ngeshwa, ngenxa yobuntu bendawo nokuziphatha, iningi lomndeni alifundiswanga kahle (imininingwane ngabo yaqoqwa kancane futhi ikakhulukazi ngezilwane ezifile ezibethelwe ogwini).
Ukubhukuda
Ama-Floater (genus Berardius) angabameli abakhulu kakhulu bomndeni. Ngokungafani neminye imilomo, inamazinyo ama-4 akha ama-tusks. Umbhangqwana ongaphandle kwendawo yomhlathi ophansi umkhulu futhi unxantathu ngesimo, ishangqa elingasemuva, elihlukaniswe nengaphandle ngegebe elincane, lincane futhi libunjiwe njengobumba.
I-Northern Swan (Berardius bairdii)
Kutholakale eNyakatho Pacific, kusuka ngo-24 N ngasogwini lwaseCalifornia kuze kufike ku-63 N Ubude bomzimba bungafinyelela kumamitha ayi-12,8, isisindo - kuze kufike kumathani ayi-15. Kuyaphawuleka ukuthi kule nhlobo, izinsikazi zikhulu kunezabesilisa.
Umbala uluhlaza okwesibhakabhaka, kwesinye isikhathi ube nombala onsundu, amachaphaza we-pectoral, umsila kanye ne-lobes yangemuva kumnyama mnyama, phansi kuyakhanya. Amadoda amadala asuka ekhanda kuye emaphepheni angamhlophe.
Omunye omelele kulolu hlobo yiSouthern Swimmer, ehlala emanzini abandayo olwandle lweSouthern Hemisphere. Ngaphandle, ubukeka njengomlingani wakhe wasenyakatho, kodwa ngandlela thile ngosayizi.
Izindawo ezi-Beak
Uhla lwalezi zilwanyana zasolwandle lubanzi kakhulu: zihlala emanzini apholile, afudumele futhi abandayo olwandle. Imilomo ingaphila kunoma yiluphi ulwandle, ngaphandle kwe-Arctic. Uhlobo luqashelwa ukusuka eTierra del Fuego kuya kweziQhingi zaseShetland.
Zikhetha izindawo ezinolwandle olujulile, zingatshuza zijule kumakhilomitha ayi-3, bese zihlala ngaphandle komoya amahora angama-2.
E-Russia, imilomo iyivelakancane, itholakala ikakhulukazi e-Far East, olwandle iBering, uLwandle i-Okhotsk, uLwandle lwaseJapan kanye nogu lweKamchatka. Kutholakale abantu abangabodwa oLwandle iBaltic. Akunakwenzeka ukusungula izindawo ezithile zemilomo, kungenzeka kuphela lapho imilomo iphonswa ogwini.
Elinye igama lomkhomo wungumlomo kaCuvier, onikezwe ukuhlonipha umsunguli wegama lakhe uGeorges Cuvier.
Bottlenose
Isici esibonakalayo se-botnose (uhlobo lweNutperon) isichotho esifushane, esichazwe kahle nebunzi eliyindilinga. Amadoda amadala anokhula kwamathambo amabili amakhulu kugebhezi, alusebenzisa njengezikhali noma ukuzivikela. Umbhangqwana owodwa wamazinyo abunjwe ngunda uphakathi kwethayi lomhlathi ophansi.
IBottlenose ende ekhokhisiwe (iHyperoodon ampullatus)
Izinhlobo zihlala eNyakatho Atlantic, kusuka ku-77 N kuya eziqhingini zaseCape Verde empumalanga nokusuka eStrait of Davis kuye eCape Cod entshonalanga. Kubonakele nasentshonalanga yeMedithera naseNyakatho yolwandle.
Abantu okuwukuphela kwabo abafundile bahlala unyaka wonke ngasogwini olusempumalanga yeCanada, eduze komsele ojulile olwandle. Abamele bobabili ubulili nabo bonke ubudala babhaliswa kule ndawo, futhi abanye abantu baqoshwa ngokuhamba kweminyaka. Ubungako beqembu obujwayelekile babungabantu abane, kepha amaqembu ahlanganisa nezilwane aze afike ku-20 atholakala.
Ubude bomzimba besilisa bungafinyelela kumamitha ayi-9.8, isisindo - aze afike kumathani angama-7.5.
Abantu abasha bumnyama ngaphezulu futhi ukukhanya ngaphansi, njengoba bekhula, izilwane ziyaqhakaza, futhi kuvela ibala elimhlophe ebunzini lamaduna, akhuphuka ngeminyaka. Emzimbeni wesilisa kukhona imihuzuko embalwa kakhulu kunenye imilomo.
Kwibhodlela eliseceleni eliphezulu, isikhathi sokuhlala ngaphansi kwamanzi angaphezu kwemizuzu engama-80 saqoshwa.
Izinhlobo ezibhekwayo zifundwe kangcono kunomunye ummeli wohlobo, i-Flat-Botnose Bottle, kepha kukholakala ukuthi i-biology yalezi zinhlobo ezimbili ziyefana.
Beak yokuphila
Imvamisa, imilomo ibhukuda yodwa, akuvamisile ukuthi iqoqane emhlanjini omncane wabantu abaningana. Uqhwaku lugxwila ngaphansi kwamanzi cishe isigamu sehora, bese luphuma bese luphumula imizuzu eyi-10, lusale ebusweni.
Ukudla kwezindebe kuqukethe izinhlanzi ezijulile olwandle kanye nama-mollus ahlukahlukene. Ukufuduka kwezinhlobo zezilwane kuncike ekutholakaleni kokudla.
Uma ufuna ukudla, imilomo ingahamba amabanga amade, iwele ekujuleni okukhulu. Ososayensi bathole ukuthi imilomo ingompetha ekujuleni kokunye phakathi kwezilwane ezincelisayo zasolwandle.
Imilomo ayikubekezeleli ukudingiswa. Ukuphela kwecala kuphela lokulethwa komlomo ku-aquarium kwaqoshwa, lapho isilwane esimpofu sasingaphili nangosuku. UKlyuvoryl uzame ukuphuma e-aquarium futhi washayisana nezindonga zawo.
Imilomo ibhukuda ifike kumakhilomitha amathathu, futhi ingaphila ngaphansi kwamanzi isikhathi esingaphezu kwamahora ayi-2.
Ukuzalanisa uqhwaku
Isikhathi sokufuya sandiswa kakhulu, futhi isikhathi sokuzala sihlala cishe unyaka wonke. Ukuthomba kweBeak kwenzeka ebangeni elingamamitha ayi-5-5,5.
Njengoba izidumbu zalezi zilwanyane zasolwandle ziqhutshwa ukulimala okuhlukahlukene, kukholakala ukuthi ngesikhathi sokukhwelana, abesilisa balwela abesifazane kakhulu, yingakho bethola izibazi.
Imvamisa, ikonyana elilodwa lizalwa ngowesifazane. Ekuzalweni, ubude bengane bufika kumamitha ayi-2,5 ukuya kwayi-22. Imilomo iphila iminyaka engaba ngu-40.
Kuncane kakhulu okwaziwayo ngempilo, imikhuba kanye nokuziphatha kwezindebe, njengoba izinhlobo zingaqondakali kahle.
Noth wase-Australia
I-Australia Lancet (Indopacetus pacificus) iyona kuphela uhlobo lohlobo. Cishe ayingafundile futhi yaziwa kuphela ngasekupheleni kweminyaka yama-90s ye-XX nge-skulls ezimbili (enye ivela eQueensland, eyesibili ivela eSomalia). Kuphakanyisiwe ukuthi imininingwane esanda kubuyekezwa yokuhlangana kwe-cetaceans engaziwa, efana ne-botnose, esifundeni sase-Indian-Pacific esishisayo kungenzeka ukuthi ihambelana nalolu hlobo.
Kunamathoni
Ukwakheka komzimba we-notch kuhlukile kancane ezinhlotsheni ezahlukahlukene. Umehluko omkhulu ukwakheka nendawo okuwukuphela kwayo yamazinyo enikeze uhlobo lwegama elithi "Mesoplodon" (ehlome ngamazinyo maphakathi nomhlathi), kusuka emazinyweni amancane obucayi ekugcineni komhlathi omncane kuze kube ngama-30 cm ubude phakathi komhlathi. Ngaphezu kwalokho, ubude be-snout buyehluka ngandlela-thile ezinhlotsheni ezihlukile.
Wonke amazinyo e-lancet angabamele abancane bomndeni (ubude bomzimba u-4-6,8 m).
I-lancet-toothed lancet-toothed (Mesoplodon densirostris) iyona hlobo oludlangile kakhulu lwaleli hlobo, futhi olufundwe kakhulu (imininingwane eminingi ngalo luqoqwe eBahamas).
Itholakala emanzini anezindawo ezifudumele ezishisayo nezishisayo, imvamisa ekujuleni kwamamitha angama-200-1000, ikakhulukazi eduze kwezindawo ezijulile zolwandle.
Ubude bomzimba buphakathi kwamamitha ayi-4,5, isisindo - 1 ithani. Abantu abasha bumnyama ngenhla futhi ukukhanya ngaphansi, abantu abadala bumnyama ngokuphelele, kusuka onsundu kuya ku-grey omnyama. Abesilisa abadala bavame ukumbozwa ngenethiwekhi eyinkimbinkimbi yezibazi kanye nokuklwebeka kusuka phezulu kwekhanda kuya kufenali eyayi-dorsal. Isici esibonakalayo salezinhlobo ingumhlathi ophansi ongenayo; emadodeni amadala, amazinyo ama-2 amakhulu ahlanganayo angenhla kwekhanda lesilwane ukusuka engxenyeni ephezulu kakhulu.
Amazinyo asezindundwini ezithukile ngokuvamile atholakala emaqenjini abantu abangafika kwabangu-7, okubandakanya abantu besifazane abadala abanamawundlu, kuyaqabukela kungaphezu kowesilisa oyedwa omdala kubo. Lolu hlobo kungenzeka ukuthi lunesithembu, kanti abesilisa bahamba phakathi kwamaqembu abantu besifazane abadala.
Ngaphezu kwezinhlobo ezichaziwe, abamele lolu hlobo luphinde lube lucet yaseGrey, i-Atlantic, iJapan ne-Peruvian lancet, njll.
Imilomo kaTasmanian
Ukuphela kwezinhlobo zohlobo lwe-Tasmanian beak (Tasmacetus shepherdi) ezitholakala eningizimu hemisphere. Inomphumela omude omfishane onamazinyo amabili amakhulu ekugcineni komhlathi ongezansi kwabesilisa. Bobabili ubulili banamazinyo amancane angama-26-27 e-conical emhlathini ophansi no-19-21 wamazinyo afanayo ngaphezulu. Lesi ukuphela kohlobo olunamazinyo emhlathini ongenhla.
Ubude bomzimba walezi zilwane bungamamitha ayi-7, isisindo - amathoni ayi-2-3. Ngemuva nangezinhlangothi zoqhwaku lweTasmanian kunombala onsundu, ezansi zinokhilimu.
Ukulondolozwa ngokwemvelo
Njengoba sekushiwo, impilo yezindebe ayiqondakali kahle. Kuncane okwaziwayo ngesimo sabo nezinsongo kubo.
Phambilini, ukuhlala emanzini ajulile bekubavikela emiphumeleni obekuvezwa kuyo izinhlobo zezinto ezisogwini, kepha muva nje isimo sesiqale ukuguquka. Ukungcoliswa komsindo kubangele ukuphuma kwenqwaba kwalezi zilwane maphakathi nama-80-ies wekhulu leminyaka elidlule, futhi kwaqoshwa okuqukethwe okungcoliswa kwezinto eziphilayo emafutheni abo. Kwesinye isikhathi izikhwama zepulasitiki noma ifilimu kwesinye isikhathi zitholakala esiswini semikhomo eyikhiyiwe - lokhu kuvame ukuba yisizathu sokufa kwabo. Ngaphezu kwalokho, ngokukhula kwezindawo zokudotshwa kwezinhlanzi olwandle olujulile emhlabeni wonke, imikhomo ebanjiswa emfucumfucwini kungenzeka ibanjwe emanetheni okudoba, futhi ngokuzayo ingasongelwa ukwehla kwenani lezinhlanzi ezidla izinhlanzi.
Mayelana nesikhathi sokuphila kwezinhlobo eziningi, isayensi ithule. Izinhlobo ezaziwayo zebhodlela le-high-leaved mayelana nobudala beminyaka engama-37.
Inani lezindebe
Imininingwane ethembekile enombolweni yemilomo ayitholakali. Ukunciphisa inani lezinhlobo kuholela ekungcoleni kwamanzi, kumisindo, ekuqeqeshweni kwe-sonar nezempi. Ngaphezu kwalokho, bafa ngamanetha okudoba. Izindebe zibuye zife ngenxa yezemvelo, ngokwesibonelo, emiphumeleni yama-parasites, bacteria kanye nama-roundworms.
EJapan, ukudoba ubuhlalu sekuyenziwe isikhathi eside. Kuma-70s kuleli lizwe ngonyaka kukhiqizwa cishe izinhloso ezingama-50. Namuhla ukudoba kuzo kuvinjelwe. Imvamisa imilomo iphonswa ogwini, izizathu zalokhu kuziphatha aziqondakali ngokuphelele. Isibonelo, e-United States, zingu-19 kuphela izindaba zokukhishwa kwezindebe ezirekhodiwe ogwini, amacala ayi-17 e-Commander Islands, namacala angama-25 e-UK. Kusukela ezinombolweni ezincane kangako, singaphetha ngokuthi le nhlobo incane kakhulu.
Kusetshenziswa abantu abakhishwe lapho ungathola khona ubukhulu benkathi yezinhlobo.
Izindebe ziseNcwadini ebomvu, kepha akucaci noma izinhlobo zidinga ukuvikelwa, ngoba akukho mininingwane ngobuningi bazo. Imilomo ayiqondwa kahle, njengoba ihlala ezindaweni ezingafinyeleleki kubantu. Kunesidingo sokuqhamuka nohlelo olukhethekile lwamazwe omhlaba okuhloswe ngalo ukutadisha impilo yezindebe nezinamba zazo.
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Ukusabalalisa nobuningi
Izindebe zeCuvier zidlangile emanzini anosawoti wonke olwandle, kusukela ezindaweni ezishisayo neziya ezindaweni ezinamakhaza kuzo zozimbili lezi ziqhingi. Uhla lwazo lubandakanya iningi lamanzi asemanzini asemhlabeni, ngaphandle kwezindawo ezingashoni nezifunda ezinamakhaza.
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Zitholakala nezilwandle eziningi ezivalekile, njengeCaribbean, iJapan ne-Okhotsk. Ensimini yeCalifornia naseGulf of Mexico. Okwahlukile kungamanzi e-Baltic ne-Black Seas, kepha-ke, lo kuphela kommeleli wama-cetaceans ahlala ekujuleni kweMedithera.
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Isibalo esiqondile salezi zilwane asikasungulwa. Ngokwemininingwane evela ezindaweni eziningana zokucwaninga, kusukela ngonyaka we-1993, cishe abantu abangama-20,000 baqoshwa ezingxenyeni ezisempumalanga nezishisayo zoLwandlekazi iPacific. Ukuhlaziywa okuphindaphindwayo kwezinto ezifanayo, okulungiselelwe abantu abalahlekile, kwabonisa ama-80,000. Ngokokulinganisa okuhlukahlukene, kutholakala cishe imilomo eyi-16-17 yezinkulungwane esifundeni saseHawaii.
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Izindebe zeCuvier ngokungangabazeki zingenye yezinhlobo ezivame kakhulu zama-cetaceans emhlabeni. Ngokusho kwedatha yokuqala, inani eliphelele kufanele lifinyelele ku-100,000. Noma kunjalo, imininingwane eningiliziwe ngenombolo nemikhuba yabantu ayitholakali.
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Imikhuba Nezondlo
Yize imilomo yeCuvier ingatholakala ekujuleni okungaphansi kwamamitha ayi-200, zithanda amanzi ezwebhu agudle ulwandle. Imininingwane evela ezinhlanganweni zabamhlophe eJapan ikhombisa ukuthi imvamisa lokhu kubhaliswa kutholakala ekujuleni okukhulu. Kuyaziwa eziqhingini eziningi zolwandle kanye nolwandle oluthile oluvalekile. Kodwa-ke, akuvamile ukuba luhlale ngasogwini lolwandle. Okuhlukile kunemigodi engaphansi kwamanzi noma izindawo ezinephunga elimincane nezwekazi lamanzi asogwini. Ngokuyisisekelo, lolu uhlobo lwe-pelagic olukhawulelwe yi-100C isotherm kanye ne-bathymetric contour engu-1000m.
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Njengawo wonke ama-cetaceans, imilomo ithanda ukuzingela ngokujula, incela inyamazane emilonyeni yazo ngasendaweni eseduze. Ukudonsa kuze kube yimizuzu engama-40 ebhalwe phansi.
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Ucwaningo lokuqukethwe esiswini lwenza ukuthi sikwazi ukufinyelela iziphetho ngokudla, okubandakanya ikakhulu ama-squids ajwayelekile olwandle, izinhlanzi kanye nama-crustaceans. Bondla ezansi nasekhalamu yamanzi.
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I-Ecology
Izinguquko kwi-biocenosis endaweni yezindebe ziholela ekuguqukeni kwebanga lendawo yokuhlala yazo. Kodwa-ke, bekungenakwenzeka ukulandelela ukuxhumana okuqondile phakathi kokuqothulwa kwezinhlobo zezinhlanzi ngazinye nokuhamba kwalezi cetaceans. Kukholelwa ukuthi ukuguqulwa kwesimo sendalo kuzoholela ekwehleni kwesibalo sabantu. Yize lo mkhuba usebenza nje kungabi semlomo nje.
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Ngokungafani nezinye izilwane ezincelisayo ezinkulu zokujula kolwandle, ukuzingela okuvulekile akuqhutshelwa ngemilomo. Ngezikhathi ezithile bagcina beku-inthanethi, kepha lokhu kuyinto eyehlukile kunesiyalo.
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Imiphumela ebekiwe yokushintshwa kwesimo sezulu somhlaba emhlabeni wasolwandle ingathinta lolu hlobo lomkhomo, kepha isimo semithelela asikacaci.
