Nā Dolphins muliwai ʻāpana o ka ʻohana o nā koholā niho. ʻOhana o nā dolphins muliwai Aia nā Amazonian, Chinese, Ganges a me nā dolphins muliwai Lapland. Minamina no nā mea āpau nā ʻīlio muliwai Pākē ʻaʻole hiki ke hoʻopakele: i ka makahiki 2012, hāʻawi ʻia nā holoholona i ke kūlana o ka "make".
Manaʻo nā biologists ʻo ke kumu o ko lākou make ʻana aia i ka ʻaihue ʻana, ka hoʻokuʻu ʻia ʻana o nā mea kemika i loko o nā kino wai, a me ka hoʻohaunaele ʻana o ke kaiaolaola kūlohelohe (ke kūkulu ʻana i nā dam, nā dams) ʻAʻole hiki i nā holoholona ke noho i nā ʻano hana, no laila, ʻaʻole ʻike ka ʻepekema i ka nui o nā nuances o ko lākou ola.
Ka wehewehe a me nā hiʻohiʻona o ka muliwai muliwai
Dolphin muliwai Amazonian kahi paʻa paʻa maoli i waena o nā lālā o ka ʻohana dolphin ʻohana: ʻo ke kino o ka poʻe noho muliwai mai 98.5 a 207 kg, a ʻo ka lōʻihi o ke kino e like me 2.5 m.
ʻO Dolphin ka muliwai muliwai
Ma muli o ka hiki i nā holoholona ke pena ʻia i ka mālamalama a me nā aka ʻeleʻele o ka hina, lani a i ʻole ʻulaʻula, kāhea ʻia lākou nā ʻīlio muliwai keʻokeʻo a nā ʻīlio muliwai poni.
ʻO ka malu o ka ʻaoʻao haʻahaʻa (ʻōpū) ʻoi aku ka māmā o nā aka ma mua o ke kala o ke kino. Kūlou iki ʻia ka ihu i lalo, e like me ka nuku i ke ʻano, poepoe ka lae a kūlia hoʻi. Ma ka nuku he mau lauoho me kahi hanana ʻoʻoleʻa, i hoʻolālā ʻia e hana i kahi hana maʻalahi. Lena melemele nā maka, a ʻaʻole i ʻoi aku ke anawaena ma mua o 1.3 cm.
Aia nā niho he 104-132 i ka lua o ka waha: ʻo kēlā mau mea e kū nei i mua he conical a no ka hopu ʻana i ka mea pio, nā mea kua i hope e hana i ka hana o ka nau.
ʻO ka fin ma ka hope o ka muliwai muliwai Amazonian pani i ka pali, ʻo ke kiʻekiʻe mai 30 a 61 cm. Nui a ākea nā peʻa. Hiki i nā holoholona ke lele ma luna o 1 m ke kiʻekiʻe.
ʻO ka Gangetic dolphin (susuk) he hina ʻeleʻele i ke kala, a maʻalahi hoʻi e lilo i hina ma ka ʻōpū o ka ʻōpū. Lōʻihi - 2-2.6 m, ke kaupaona - 70-90 kg. ʻAʻole ʻokoʻa ke ʻano o nā peʻa mai nā peʻa o nā Dolphins Amazonian.
Hoʻonui ʻia ka ihu, ʻo ka helu kokoke o nā niho he 29-33 pālua. ʻAʻole hiki i nā maka liʻiliʻi ke ʻike a loaʻa kahi hana tactile. Ua helu ʻia nā Dolphins Ganaana e like me nā lāhui ʻaneʻane pau i ka Red Data Book no ka mea liʻiliʻi loa ko lākou heluna kanaka.
I ke kiʻi, ka hui ʻōhua o ka muliwai
ʻO ka lōʻihi o nā Dolphins Laplatian he 1.2 -1.75 ka m, ke kaumaha he 25-61 kg. ʻO ka nuku ma kahi o kaʻeono o ka lōʻihi o ke kino. ʻO ka helu o nā niho he 210-240 ʻāpana. Aia ke ʻano ʻē o kēia ʻano i kona kala, he kala ʻeleʻele kona, a no kēia mau dolphins, he ʻano lauoho ka hāʻule ʻana i ko lākou ulu ʻana. Hoʻohālike nā pelekane i nā huinakolu i ka hiʻona. ʻO ka lōʻihi o ka fin ma ke kua ʻo 7-10 cm.
Nā Dolphins muliwai ʻilihune loa koʻu mau maka, akā, i loko nō o kēia, ua mākaukau pono lākou i ka waihona ma muli o ko lākou lohe maikaʻi a me ka hiki ke haʻi. I nā poʻe noho muliwai, ʻaʻole pili ka iwi ʻeha i kekahi i kekahi, i hiki ai iā lākou ke huli i ko lākou poʻo i nā ʻaoʻao ʻākau i ke kino. Hiki i nā Dolphins ke piʻi i nā wikiwiki a i 18 km / h, ma lalo o nā kūlana maʻamau ʻauʻau lākou i ka wikiwiki o 3-4 km / h.
ʻO ka manawa noho ma lalo o ke kolamu wai mai 20 a 180 s. Ma waena o nā kani i hoʻoili ʻia, hiki i kekahi ke hoʻokaʻawale i ke kaomi ʻana, ke kani ʻana i ke kani kiʻekiʻe, ka hae ʻana, ke kaniʻuhū ʻana. Hoʻohana ʻia nā kani e nā dolphins e launa pū me nā ʻohana, a me ka hana ʻana i ka echolocation.
E hoʻolohe i ka leo o kahi iʻa muliwai
ʻO ka nohona dolphin muliwai a me kahi noho
I ke ao nā ʻīlio muliwai ʻeleu, a me ka hoʻomaka ʻana o ka pō hele lākou e hoʻomaha i nā wahi o ka waihona wai, kahi o ka wikiwiki o ke au i haʻahaʻa loa ma mua o nā wahi o ke ao.
Ma hea e noho ai nā moʻo muliwai?? ʻĀpana o ka Amazonian nā ʻīlio muliwai ʻo ia nā kahawai nui o ʻAmelika Hema (Amazon, Orinoco), a me ko lākou mau kahawai. Loaʻa lākou iā lākou i nā loko a me nā wahi kokoke i nā wailele (i luna a i ʻole lalo o ka muliwai).
I ka wā maloʻo lōʻihi, ke heleleʻi nui ka pae wai i nā waihona wai, noho nā iʻa i nā kahawai nui, akā inā lawa ka wai mai ka wā ua, hiki iā ʻoe ke loaʻa ka nui o ia mau mea i nā kahawai ʻololī, a i ʻole ma ka waena o ka ululāʻau i hoʻopiha ʻia a i ʻole ka pā.
Ua pālahalaha nā dolphins Ghana i nā kahawai hohonu o India (Ganges, Hunli, Brahmaputra), a me nā kahawai ʻo Pakistan, Nepal, Bangladesh. I ke ao, luʻu ia i kahi hohonu o 3 mika, a ma lalo o ka uhi o ka pō e hele i kahi hohonu pāpaʻu e ʻimi ai i kahi pio.
Hiki ke loaʻa nā Dolphins Laplat i nā kahawai a me nā kai. Noho lākou ma kahi kokoke i ke kapakai hikina o ʻAmelika Hema, ka waha o ka La Plata. ʻO ke kumu, noho nā moʻo muliwai i nā pālua a i nā ʻohana hipa liʻiliʻi, ʻaʻohe mea i ʻoi aku ma mua o hoʻokahi a me ka hapalua kakini kanaka. Inā loaʻa ka nui o ka meaʻai, hiki i nā dolphins ke hana i nā hipa i nā manawa he nui aku.
ʻAi hānai ʻai wai
ʻAi lākou i ka iʻa, nā ilo a me nā molluscs (pāpaʻi, ʻōpae, ʻupena). ʻO ka muliwai kahi e noho ai nā nūnū he lepo ka lepo; hoʻohana nā holoholona i ka echolocation e loaʻa ai ka meaʻai.
Hopu nā iʻa ʻōmaʻomaʻo keʻokeʻo iʻa me kā lākou ihu, a hoʻohana pū iā lākou ma ke ʻano he mea hana e hopu i nā pūpū mai ka lalo o ka waihona. No ka mea pio, hele lākou i nā ʻāpana o ka muliwai me kahi hohonu pāpaʻu.
Makemake lākou e ʻimi hoʻokahi a i ʻole i nā hui liʻiliʻi. Lawe nā Dolphins i ka iʻa me ko lākou niho mua, a laila neʻe i ka hope, e wili mua i ke poʻo a ma hope wale o ka ale ʻana o ka holoholona, haki i ke koena. Haehae ʻia nā mea pio nui, nahu wale i ke poʻo.
ʻO ka hana hou a me ke ola o nā dolphins muliwai
Pāhili ma nā ʻīlio muliwai aia ma kahi o 5 mau makahiki o ka makahiki. Hāpai ka hāpai i 11 mau mahina. Ma hope o ka hānau ʻia ʻana o ka pēpē, kipaku koke ka wahine iā ia mai ka wai a lawe ʻo ia i kāna hanu mua.
ʻO ka lōʻihi o ke kino o ka cub he 75-85 cm, ke kaupaona ʻana ma kahi o 7 kg, he hina ke kino i ke kala. Ma hope koke iho o ka ʻike ʻia ʻana o nā keiki, hoʻi nā kāne i nā kahawai, a noho mau nā wahine me nā keiki (i nā kahawai a i ʻole nā awāwa i hoʻokahe ʻia ma hope o ka piʻi ʻana o ka wai).
ʻO Dolphin ka muliwai pēpē
Ke hāʻawi nei i ka makemake i kēlā mau wahi, pale aku nā wahine i kā lākou keiki mai ka nele i ka meaʻai, nā mea ʻaihue, a me nā hana ʻino a nā kāne haole. Hoʻomaʻa mau ka keiki i ka makuahine a hiki i kahi o 3 mau makahiki.
ʻAʻole ia he mea maʻamau no ka wahine e hāpai hou me ka ʻole o ka hoʻopau ʻana i ke kaʻina hana lactation. Hiki ke haki ma waena o ka male ʻana mai 5 a 25 mau mahina. Ola nā ʻīlio muliwai ʻaʻole i ʻoi aku ma mua o 16 - 24 mau makahiki.
