ʻO ke kāʻei ʻo Layard (Mesoplodon layardii) a i ʻole he koholā nuku i kāʻei ʻia.
Hoʻolahalaha o kā Belttooth Layard
He pae mau ko kā Layard's belttooth i nā wai anuanu anu o ka Hemisphere Hema, ʻo ka hapa nui ma waena o 35 ° a me 60 ° C. E like me nā koholā nuku āpau, ʻike mua ʻia ia i nā wai hohonu ma waho o ka papa ʻaina.
Hoʻolahalaha ʻia ma kahakai o Argentina (Cordoba, Tierra del Fuego). Noho ia i ka wai ma kahi kokoke i Australia (New South Wales, Tasmania, Queensland, South and Western Australia, Victoria). Aia ke kāʻei o Layard i ka wai o Brazil, Chile, kokoke i nā Mokupuni ʻo Falkland (Malvinas) a me nā panalāʻau hema o Palani (Kerguelen). Noho pū kekahi ia i loko o ka wai o ka Heard a me McDonald Islands, Nūhōlani, ma waho o ke kapakai o ʻApelika Hema.
Nā hōʻailona kūwaho o ka kāʻei o Layard
He lōʻihi ke kino o Layard's belttooth o 5 a 6.2 mika. ʻO 907 - 2721 kg kona nui. Hānau ʻia nā pēpē me ka lōʻihi o 2.5 a 3 mau mika, a ʻike ʻole ʻia ko lākou kaumaha.
He kino kālua ko kā Layard kāʻei me nā ʻaoʻao ākea, hāwili liʻiliʻi. Aia kahi ihu loloa lahilahi ma ka hopena. Liʻiliʻi, paʻi a poepoe nā peʻa. Hoʻonui loa ka fin dorsal a loaʻa kahi ʻano crescent. ʻO ka waihoʻoluʻu o ka ʻili he uliuli-ʻeleʻele, i kekahi manawa poni ʻeleʻele i hoʻopili ʻia me keʻokeʻo ma lalo, ma waena o nā palaka, ma ke alo o ke kino a puni ke poʻo. Aia kekahi mau kiko ʻeleʻele ma luna o nā maka a ma ka lae.
ʻO ka hiʻohiʻona morphological ʻano nui loa o kā kā Layard kāʻei kāʻei hoʻokahi molara, i loaʻa wale i nā kāne makua. Aia kēia mau niho ma ka iwi ā luna kekeʻe a ʻae i ka waha e wehe wale i ka 11 - 13 knm ka laulā.
ʻO ka hana hou ʻana i kā kāʻei Layard
ʻAʻoleʻike iki ʻia e pili ana i ke ʻano hānau o nā kāʻei o Layard.
Manaʻoʻiʻo ʻia ka hānau ʻana i ke kauwela, ʻike ʻia nā keiki hānau hou i ka hopena o ke kauwela, i ke kakahiaka nui ma hope o 9 a 12 mau mahina o ka hāpai ʻana. Hāpai nā kāʻei o Layard i hoʻokahi manawa i ka makahiki. ʻAʻohe ʻikepili e pili ana i ka mālama makua ʻana no kā lāua keiki. E like me nā keiki hānau hou, nā koholā a me nā dolphins, hānai nā keiki i ka waiū, ʻaʻole ʻike ʻia ka lōʻihi o kēia hānai ʻana. Hiki i nā keiki hānau hou ke ukali i ko lākou makuahine mai ka hānau ʻana. ʻAʻole maopopo ke kuleana o ke kāne ma ka ʻohana.
ʻO ke ola o nā kāʻei o Layard he mea like me nā ʻelele o nā ʻano ʻē aʻe i ka genus, mai 27 a 48 mau makahiki.
Nā hiʻohiʻona o ke kāʻei o Layard
Hoʻoweliweli aku ʻo Layard's Straptooth mai ka hālāwai ʻana me nā moku, no laila ʻike iki ʻole ʻia lākou i ka nahelehele. E luʻu mālie nā holoholona kai ma lalo o ka wai a piʻi i luna wale nō ma hope o 150 - 250 mau mika. ʻO ka luʻu maʻamau he 10-15 mau minuke.
ʻO nā niho canine nui i nā kāne kāne makua e manaʻo ʻia he pono no ke kamaʻilio ʻike ʻana a i ʻole tactile. Hoʻohana pū nā koholā niho ʻē aʻe i ka eolocation, a aia paha i loaʻa i kā Layard's belttooth kekahi ʻano o ke kamaʻilio acoustic ma waena o kēia ʻano.
ʻO ka Mana Belttooth o Leyard
ʻO ka papaʻai nui o ke kāʻei o Layard he iwakāluakūmāhā ʻano o ka heʻe kai, a me kahi iʻa hohonu o ke kai. Hoʻokumu ʻia ke kahaha a me ka pīhoihoi i ka loaʻa ʻana o kahi iwi ā lalo i hoʻonui ʻia i nā kāne. I ka manawa ma mua ua manaʻo ʻia ua hoʻopilikia ia me ka hānai ʻana, akā, me he mea lā, he ʻoiaʻiʻo ka ʻaoʻao ʻē aʻe. He mea nui kēia no ka hoʻokomo ʻana i ka meaʻai i ka puʻu. Akā ua kuhi ʻia kēia kuhiakau, no ka mea he mea hiki wale i nā kāʻei o Layard e omo wale i ka meaʻai i loko o kā lākou waha, ʻoiai ka mamao a lākou e wehe ai.
ʻEnemi kūlohelohe o kā Layard's Belttooth
Hiki ke hāʻule i nā kāʻei o Layard i nā kohola kohola
ʻO ke kaiaolaola o kā Layard kāʻei
ʻAi nā scrapers a Layard i nā ʻano meaola kai, no laila e hoʻopili paha lākou i ka heluna kanaka o kēia mau meaola.
Nā kumu no ka hoʻemi ʻana i ka helu o kā Beltona kāʻei
ʻAʻohe ʻike e pili ana i ka nui o kā kāʻei Layard a i ʻole ke ʻano i ka helu o kēia ʻano. ʻAʻole kuhi ʻia kēia mau holoholona kai he mea ʻole, akā maʻalahi lākou i nā hoʻoweliweli pae haʻahaʻa a ʻike paha i kahi hōʻemi honua 30% ma o ʻekolu mau hanauna. ʻAʻole nānā ʻia ka mokuʻāina o nā laha i ke kūlohelohe, akā i ka hoʻokolokolo ʻana i ka nui o nā kāʻei i hoʻolei ʻia ma kahakai, ʻaʻole paha kēia he ʻano laha ke hoʻohālikelike ʻia me nā hoahānau ʻē aʻe.
E like me nā koholā nuku, hānai nui lākou i nā wai hohonu ma waho o ka papa ʻaina.
ʻO ka papaʻai he aneane holoʻokoʻa ia o ka heʻe kai e noho ana ma kahi hohonu. ʻAʻohe mea alualu pololei no nā kāʻei o Layard. Akā ʻo ka lawaiʻa lawaiʻa hohonu ʻana e hāpai i ka hopohopo no ka paʻa mau ʻana o kekahi iʻa i ka ʻupena. ʻOiai nā pae hopu haʻahaʻa o kēia mau holoholona kai hiki ke hoʻoulu i nā hopena intermittent i kēia hui o nā cetaceans laha ʻole.
ʻO Mesoplodon layardii kahi ʻano i ʻike i kekahi mau ʻano hoʻoweliweli.
- hiki ke hoʻopili ʻia i nā pūnaewele drifter a me nā pūnaewele ʻē aʻe;
- hoʻokūkū mai nā lawaiʻa no ka hopu, ʻoi loa ka heʻe;
- ka hoʻohaumia o ke kai wai a me ka hōʻiliʻili o DDT a me PCb i nā kinona o ke kino;
- nā mea i hoʻokuʻu ʻia ma Australia;
- ka make ʻana o nā holoholona mai nā mea ea i hoʻolei ʻia.
ʻO kēia ʻano, e like me nā koholā nuku ʻē aʻe, ua hoʻokau ʻia i ka hopena anthropogenic e nā leo nui, i hoʻohana ʻia e nā anaina uila a me nā seismic.
I ke anuanu - nā wai mehana, maʻalahi ka niho o Layard i nā hopena o ke aniau, no ka mea hiki i ka hoʻomehana kai ke hoʻololi a hōʻemi paha i ka laulā o nā ʻano, ʻoiai ke noho nei nā holoholona kai i ka wai me kahi mahana. ʻAʻole ʻike ʻia nā hopena o kēia nui a me nā hopena no kēia laha.
Ke kūlana mālama o ke kāʻei o Layard
ʻO nā hopena i wānana ʻia o ka hoʻololi o ke aniau o ka honua i ka nohona kai e loli paha i ke kāʻei o Layard, ʻoiai ʻaʻole i maopopo ke ʻano o kēia mana. Hoʻokomo ʻia kēia ʻano i CITES Appendix II. Pono ka noiʻi e hoʻoholo i ka hopena o nā hoʻoweliweli hiki i kēia ʻano.
I ka makahiki 1982, ua hoʻomohala ʻia kahi National Contigency Plan e hana noiʻi e hoʻoholo ai i nā kumu o nā koholā i kū ʻia e nā koholā. ʻO kahi ʻē aʻe no ka mālama ʻana i ke kāʻei o Layard ka hoʻomohala ʻana i nā ʻaelike e pale aku i nā cetaceans a me kā lākou wahi noho ma ka honua.
https://www.youtube.com/watch?v=9ZE6UFD5q74
