Li-dolphin tsa noka ke karolo ea lelapa la maruarua a meno. Lelapa la li-dolphin tsa noka e na le li-dolphin tsa linoka tsa Amazonia, China, Ganges le Lapland. Ka bomalimabe ho bohle, chinphin tsa noka tsa dolphin ha e khone ho bolokeha: ka 2012, liphoofolo li ile tsa abeloa boemo ba "ho timela".
Litsebi tsa baeloji li lumela hore lebaka la ho fela ha tsona li bakoa ke ho tsongoa hampe, ho ntšoa ha lintho tsa lik'hemik'hale ka matamong, le ho senyeha ha tikoloho ea tlhaho (kaho ea matamo, matamo). Liphoofolo li ne li ke ke phela maemong a maiketsetso, ka hona, saense ha e tsebe mefuta e mengata ea boteng ba tsona.
Tlhaloso le likarolo tsa dolphin ea noka
Dolphin ea noka ea Amazonia ea tšoereng rekoto ea 'nete har'a litho tsa lelapa la dolphin ea noka: boima ba' mele ba baahi ba noka bo tloha ho 98.5 ho isa ho 207 kg, mme bolelele bo boholo ba mmele bo ka ba 2,5 m.
Ho bontšitsoe dolphin ea noka ea Amazonia
Ka lebaka la 'nete ea hore liphoofolo li ka pentoa ka leseli le lefifi ka mmala o mosoeu, oa leholimo kapa o pinki, li boetse li bitsoa li-dolphin tse tšoeu tsa noka le li-dolphin tsa noka e pinki.
Moriti oa karolo e ka tlase (mpa) o na le mmala o bobebe o 'maloa ho feta' mala oa 'mele. Sefuba se bolelele se kobehile hanyenyane tlase, se tšoana le molomo oa sebopeho, phatla e chitja ebile e moepa. Molomong ho na le moriri o nang le sebopeho se thata, se etselitsoeng ho etsa ts'ebetso e bonolo. Mahlo a 'mala o mosehla,' me bophara ba ona ha bo fete 1.3 cm.
Ho na le meno a 104-132 molomong oa molomo: a ka pele a bōpehile joaloka khoune mme a etselitsoe ho ts'oasa phofu, ea morao e metenya ho etsa mosebetsi oa ho hlafuna.
Lephegwana le le lego ka morago ga dolphin ya noka ya Amazonia le tšeela legato, botelele bja lona e lego disentimetara tše 30 go ya go tše 61. Maphegwana a magolo e bile a sephara. Liphoofolo li khona ho tlola bolelele ba 1 m.
Gangetic dolphin (susuk) e lefifi ka mmala, e fetoha bohlooho ka mpeng ea mpa. Bolelele - 2-2.6 m, boima ba 'mele - 70-90 lik'hilograma. Mofuta oa mapheoana ha o fapane hōle le mapheoana a li-dolphin tsa Amazonia.
Sefuba se bolelele, palo e lekantsoeng ea meno ke lipara tse 29-33. Mahlo a manyane ha a bone ebile a sebetsa ka thata. Li-dolphin tsa Ghana li thathamisitsoe e le liphoofolo tse kotsing ea ho fela ho Red Data Book hobane palo ea tsona e nyane haholo.
Setšoantšong, sehlopha sa linoka tsa dolphin
Bolelele ba li-dolphin tsa Laplatia ke 1.2 -1.75 m, boima ba 25-61 kg. Molomo o ka ba botelele-tharong ba bolelele ba mmele. Palo ea meno ke likotoana tse 210-240. Ntho e ikhethang ea mofuta ona e lutse ka 'mala oa eona, o nang le' mala o sootho, hape le li-dolphin tsena li khetholloa ke moriri o oelang ha o ntse o tsofala. Mapheoana a tšoana le likhutlo tse tharo ka chebahalo. Bolelele ba sephetho se ka morao ke cm 7-10.
Li-dolphin tsa noka ba sa bone hantle hantle, empa, leha ho le joalo, ba shebile hantle ka letamong ka lebaka la bokhoni ba bona bo botle ba ho utloa le ho ithuta. Ho baahi ba linoka, methapo ea mokokotlo ea mokokotlo ha e hokahane, e leng se ba lumellang ho sotha lihlooho ka lehlakoreng le letona 'meleng. Li-dolphin li ka fihla ka lebelo ho fihla ho 18 km / h, tlasa maemo a tloaelehileng li sesa ka lebelo la 3-4 km / h.
Nako ea bolulo tlasa kholomo ea metsi e tloha ho 20 ho isa ho 180 s. Har'a melumo e tsoang, motho a ka khetholla ho penya, ho hoelehetsa ka melumo e phahameng, ho bohola, ho lla. Melumo e sebelisoa ke li-dolphin bakeng sa puisano le li-congeners, hammoho le sepheo sa ho ithuta.
Mamela lentsoe la dolphin ea noka
Mokhoa oa bophelo oa noka ea dolphin le tikoloho
Motšehare li-dolphin tsa noka li mafolofolo, 'me ha bosiu bo qala ba ea phomola libakeng tsa letamo, moo lebelo la hona joale le leng tlase haholo ho feta libakeng tseo ba lulang ho tsona motšehare.
Li-dolphin tsa noka li lula kae?? Sebaka sa Amazonia li-dolphin tsa noka ke linoka tse kholo tsa Amerika Boroa (Amazon, Orinoco), hammoho le melatsoana ea tsona. Li fumaneha le matšeng le libakeng tse haufi le liphororo (holimo kapa tlase nokeng).
Nakong ea komello e telele, ha metsi a matamo a theoha haholo, li-dolphin li lula linokeng tse kholo, empa haeba ho na le metsi a lekaneng a tsoang nakong ea lipula, o ka a fumana a mangata litselaneng tse moqotetsane, kapa bohareng ba moru o nang le likhohola kapa thota.
Li-dolphin tsa Ghana li atile linokeng tse tebileng tsa India (Ganges, Hunli, Brahmaputra), hammoho le linokeng tsa Pakistan, Nepal, Bangladesh. Motšehare, e qoela botebo ba limithara tse 3, 'me bosiu e ea botebong bo sa tebang e batla phofu.
Li-dolphin tsa Laplat li ka fumanoa linokeng le maoatleng. Ba lula haufi le lebopo le ka bochabela la Amerika Boroa, molomong oa La Plata. Ha e le hantle, li-dolphin tsa noka li lula ka bobeli kapa ka mehlape e menyenyane, e nang le batho ba fetang leshome le halofo. Ha lijo li fumaneha ka bongata, li-dolphin li ka baka mehlape e meholo ka makhetlo a mangata.
Ho fepa dolphin ea noka
Li ja litlhapi, liboko le li-molluscs (makhala, li-shrimps, squid). Linoka tseo dolphin e lulang ho tsona li seretse haholo; liphoofolo li sebelisa echolocation ho fumana lijo.
Li-dolphin tse tšoeu tsa noka li tšoasa litlhapi ka liphofu tsa tsona, hape li li sebelisa e le sesebelisoa sa ho ts'oasa lihlapi ho tsoa tlase letamong. Bakeng sa phofu, ba ea likarolong tsa noka ka botebo bo sa tebang.
Di rata ho tsoma di le ding kapa ka dihlotshwana. Li-dolphin li nka litlhapi ka meno a tsona a ka pele, ebe li li fetisetsa ho tse ka morao, tse silang hlooho pele ebe feela kamora hore phoofolo e e koenye, e silakanye tse ling kaofela. Phofu e kholo e tabohile likoto, e loma hlooho pele.
Ho ikatisa le ho phela ha li-dolphin tsa noka
Ho kena bohlankaneng kapa boroetsaneng li-dolphin tsa noka e hlaha a le lilemo tse ka bang 5. Bokhachane bo nka likhoeli tse 11. Kamora hore ngoana a hlahe, e tšehali hang-hang e mo sutumetsa ka ntle ho metsi e le hore a heme ka lekhetlo la pele.
Bolelele ba mouoane ke 75-85 cm, boima bo ka ba 7 kg, 'mele o' mala o mosoeu bo bobebe Nakoana kamora ho hlaha ha malinyane, tse tona li khutlela linokeng, ha tse tšehali tse nang le bana li ntse li le teng (ka likanaleng kapa liphuleng tse ileng tsa koaheloa ke metsi kamora hore metsi a phahame).
Ho bontšitsoe dolphin ea lesea
Ho fana ka khetho ho libaka tse joalo, tse tšehali li sireletsa bana ba tsona khaellong ea lijo, libatana, le liketsong tse mabifi tsa banna ba kantle ho naha. Peo e lula haufi le 'm'a eona ho fihlela e ka ba lilemo li tharo.
Ho tloaelehile hore mosali a ima hape a sa qeta ts'ebetso ea ho anyesa. Phapang pakeng tsa ho tlolelana ha liphoofolo e ka ba likhoeli tse 5 ho isa ho tse 25. Phela li-dolphin tsa noka ha e fete lilemo tse 16 - 24.
