Mary Allen
Ma muli o ka wai paʻakai e maloʻo ke kino, inu ka iʻa wai paʻakai. I loko o ka wai maʻemaʻe, ʻo ka piʻi ʻana o ke kaomi osmotic e make ai ka iʻa, no ka mea, ʻaʻohe o lākou hana e hoʻopau ai i ka wai nui. Ma kekahi ʻaoʻao, maloʻo ka iʻa i ka wai paʻakai.
He aha ka hopena ke komo ka iʻa wai hou i ka wai paʻakai?
ʻAʻole hiki i ka hapa nui o nā iʻa wai maʻemaʻe ke ola i loko o ka wai kai, akā he nui ka nui o nā iʻa kai e kipa aku i nā estuaries a i ʻole nā hōʻailona o nā kahawai, no ka manawa pōkole. Ma kahi o 3,000 wale nō ʻano iʻa e like me ka salmon, sturgeons, eels a sticklebacks hiki ke ola i loko o ka wai maʻemaʻe a me ke kai i ka wā lōʻihi.
Pehea e ola ai ka iʻa i ka wai paʻakai?
He mea nui i nā holoholona kai ke kū'ē ke kaomi i loko o kā lākou mau keena - ka mea i kapa ʻia ʻo osmotic pressure - i ke kaomi wai o waho i hiki iā lākou ke ola i ka wai paʻakai. A i ʻole, pahū a pahū paha kā lākou mau cell.
No ke aha e ʻae ai ka iʻa i ka wai paʻakai?
ʻOi aku ka kiʻekiʻe o ka paʻakai i hoʻoheheʻe ʻia i loko o ke kino o ka iʻa ma mua o ka wai o nā kahawai a i ʻole nā loko. No laila, e like me ke kumu o ka osmosis, iʻa maʻalahi - a me ka ʻike ʻole - e lawe i ka wai ma mua o ka mea e pono ai. Lawe lākou i kēia wai nui me ka mimi i hoʻoheheʻe ʻia - "haʻalele lākou i ka wai".
He aha ka hopena i nā pūnana holoholona i ka paʻakai a me ka wai hou?
ʻO ka iʻa e noho ana i loko o ka wai paʻakai he haʻahaʻa ka paʻakai paʻakai i loko o ko lākou mau keena ma mua o ka wai paʻakai e hoʻopuni ana iā lākou. No laila, kapa ʻia kēia mau iʻa he hypoosmotic. Ma muli o ka osmosis, kahe ka wai mai loko mai o nā keena. Lawe ʻia ke kahe wai e kūʻē i ka gradient concentrate o nā paʻakai i hoʻoheheʻe ʻia.
No ke aha e make ʻole ai ka iʻa wai paʻakai i ka make wai?
He paʻakai ka iʻa wai paʻakai ma loko, akā ma waho ua hoʻopuni ʻia e ka wai me ka ʻoi aku o ka nui o ka paʻakai, ʻo ia hoʻi ke kai paʻakai. No laila, lilo mau ka i'a i ka wai i ke kai. E make ʻo ia i ka make wai inā ʻaʻole ʻo ia e inu mau i mea e hoʻopiha ai i ka wai i nalowale.
Pehea e ola ai ka salmon i ka wai hou a me ka wai paʻakai?
He ʻano physiologies like ʻole ka iʻa wai a me ka wai paʻakai. Eia naʻe, hiki ke hoʻololi kēia mai kekahi ʻōnaehana a i kekahi no kekahi mau ʻano. Hiki i nā iʻa lele lōʻihi e like me ka salmon ke hoʻololi i kā lākou metabolism, ʻo ia hoʻi, mai ka hoʻokuʻu ʻana i ka paʻakai i ka hoʻomoʻa ʻana i ka paʻakai ma o ka ʻai.
Hiki i ka i'a ke poha?
Akā hiki iaʻu ke pane i ka nīnau kumu ma ke kumuhana me ka YES mai koʻu ʻike ponoʻī. Hiki ke pohā ka iʻa.
Piʻi iʻa hea?
ʻO nā haku o kēia aʻo ʻana, ʻo ia ka salmon, e waiho ana i ke kai e hoʻohua a ʻauʻau ai ma nā kahawai wai piha a hiki i ko lākou wahi hānau.
Hiki i ka iʻa ke hiamoe?
ʻAʻole naʻe i pau ka Pisces i kā lākou hiamoe. ʻOiai ua hōʻemi maopopo lākou i ko lākou nānā ʻana, ʻaʻole lākou e hāʻule i loko o kahi manawa hiamoe hohonu. Ke moe nei kekahi mau iʻa ma ko lākou ʻaoʻao e hiamoe, e like me mākou.
Pehea e inu ai ka iʻa i ka wai?
Hoʻokomo mau ka iʻa wai maʻemaʻe i ka wai ma o nā gills a me ka ʻili o ke kino a hoʻokuʻu hou ma ka mimi. No laila, ʻaʻole pono e inu ka iʻa wai maʻemaʻe, akā lawe ʻo ia i ka meaʻai me ka wai ma ka waha (ma hope o nā mea a pau, ʻauʻau ʻo ia i loko!).
Hiki i ka iʻa ke make wai?
Pono ka iʻa paʻakai e inu a make lākou i ka make wai. Pono ka iʻa paʻakai e inu a make lākou i ka make wai. Aia ma kahi o 70 ka nui o ka wai i loko o ke kanaka, a lākou e hoʻokuʻu ʻia ma o ka hoʻoulu ʻana a i ʻole ka mimi ʻana a pono e pani hou.
Pehea e hoʻokuʻu ai ka iʻa i ka mimi?
No ka mālama ʻana i ko lākou kaiapuni i loko, hoʻopaʻa ka iʻa wai maʻemaʻe i ka Na+ a me Cl- ma o nā sela chloride ma ko lākou gills. Hoʻomoʻa ka iʻa wai i ka nui o ka wai ma o ka osmosis. ʻO ka hopena, inu liʻiliʻi lākou a pipi mau.
He aha kāu i kapa ai i ka iʻa ma waena o ke kai a me ka wai maʻemaʻe?
Ua kapa ʻia nā ʻano ʻano e neʻe mau ma waena o ke kai a me ka wai maʻemaʻe he amphidromic inā ʻaʻole kēia mau neʻe no ka hana hou ʻana. ʻO nā kumu o kēia mau neʻe ʻana he ʻai a hoʻoilo paha.
ʻO wai ka iʻa e noho ana i ka paʻakai a me ka wai maʻemaʻe a kaulana loa i ka puhi paka?
E ʻike ʻoe i nā sturgeons he nui, nā ʻili muliwai, nā salmon, a me nā mea honi.
Hiki i ka iʻa ke hou?
Hiki i ka iʻa ka hou? ʻAʻole! ʻAʻole hiki i ka iʻa ke hou. ʻO ka mea ʻē aʻe, ʻaʻole hiki iā lākou ke maloʻo a make i ka wai anuanu, no ka mea, he holoholona koko anu ka iʻa, ʻo ia hoʻi, hoʻololi lākou i ka mahana o ke kino a pēlā ko lākou kahe ʻana a me ka metabolism i ka wela o ka honua.
He puʻupaʻa ko ka iʻa?
ʻO nā puʻupaʻa ʻulaʻula ʻeleʻele o ka iʻa he lōʻihi a haiki a holo ma lalo o ke kuamoʻo a hiki i nā ureter ʻelua, e wehe ana kēlā me kēia i loko o ka ʻōpū mimi. ʻO ka hana a nā puʻupaʻa ka hoʻokuʻu ʻana i ka wai a me ka mimi.
He holoholona anei ka ia?
He koko anu ka i'a, he vertebrate aquatic me ka gills a me ka unahi. ʻAʻole like me ka hapa nui o nā vertebrates terrestrial, hoʻoulu ka iʻa iā lākou iho me ka neʻe ʻana o ko lākou iwi kuamoʻo. He ʻauʻau ko ka iʻa iwi.