Fish isiphuzo noma cha? Yini isayensi uthi?

Ngemva kokubukeza zonke izici inkinga, izazi ziye zathola ukuthi inhlanzi isiphuzo akufani. Ngisho kangcono ukusho - ungaphuzi, bese amanzi emzimbeni wakho. Phela, liquid iqhaza kuzo zonke izinqubo umzimba. Ngaphandle kwayo, umsebenzi wokuphila ngeke kwenzeke. Yilokho kanye abakwenza.

angenasawoti izakhamizi

Lezi ubuhle emizimbeni yabo babe usawoti kakhulu kangangokuba ukugwinya ngamanzi umzimba ke akudingekile. It kuvela ukuthi izinhlanzi baphuze umzimba, hhayi ngomlomo. Schematically, inqubo kungenziwa elabekwa kanje. Uma eceleni uketshezi ezimbili ezingafani lokuhlala oncibilikile kuzo, vula valve, lapho vector of okusheshayo izothunyelwa? Kunjalo, bebheke uketshezi ayegcwele. Ayanda lokuhlushwa usawoti, aba maningi "ukoma" kubuhlungu. Amanzi iqala ukuba iphokophele ayegcwele amanzi ahlanzekile iqukethe esincane izithasiselo, umfutho osmotic cishe zero. Inhlanzi - kunalokho. umzimba wabo nosawoti kakhulu. It kuvela ukuthi ngaso sonke isikhathi ncela imvelo. Futhi umsebenzi wabo oyinhloko Akukhona ukumuncwa futhi kukhuthaza. Le nqubo ibizwa kushintshwe, kungenjalo abakhileyo angenasawoti angase zigcwala aqhumile, ukugeleza okukhulu ngakho ngaphakathi emzimbeni. It kuvela ukuthi izinhlanzi aphuza ngendlela original kakhulu. Ziba ketshezi izidingo zakhe siqu, ngisho ulungise umfutho ngesikhathi ngaphakathi.

izakhamuzi zasolwandle

Lezi zakhamuzi amanzi anosawoti inqubo sishintshile. At sea, emakamu usawoti kuphezulu. Inkomba ingcindezi osmotic uyalingana izikhathi eziphindwe amathathu nambili. Marine izinhlanzi isiphuzo njalo. Bamane kufanele bahlale ubuyise izinqolobane zalo, ngoba imvelo njalo zabo "ezomile", amanzi engena kulo lonke umzimba. Iqiniso liwukuthi ngempela kuhlekisa. Lapho zasolwandle izinhlanzi isiphuzo amanzi - abaziphila futhi kahle. Misa - kungaba "wome" ukuwohloka kusukela ukulahlekelwa uketshezi. Futhi lokhu, ngokuba njalo emanzini! Kodwa abanjalo bangabaphostoli imithetho okusheshayo. Ingcindezi osmotic emizimbeni izinhlanzi kuphela eziyishumi ukuze eziphindwe nanhlanu. Ngaphandle - kabili kunezinga eliphezulu. Lokho ebangela izinhlanzi abampofu baphuze ngokuqhubekayo ukuze usinde hhayi "wome". Kuyathakazelisa ukuthi ukuphila badinga amanzi ahlanzekile. Bona yayo "ehlungiwe" ngokususa nosawoti ngu gill izinsalela. Kungashiwo okufanayo kwenziwa, ezifana nezingwenya. Lezi nosawoti ziyasuswa ngokusebenzisa nezindlala lacrimal. Lapho ingwenya simnandi udle, wayekhamuluka. Lokhu usawoti ngokweqile ephuma emzimbeni ngaso leso.

Sharks imisebe

Lezi zinambuzane emhlabeni ocean zikhonjwe isigaba ekhethekile. Izizathu lesi simo sengqondo "olubandlululayo" ukuthi izindlela yobuhlobo bawo imvelo sihluke kakhulu nezinye izakhamuzi zaseMpumalanga ekujuleni kolwandle. izinhlanzi okuthiwa ungaphuzi kakhulu ngendlela abanye. Ngenxa yalokhu, "bafunda" ukuba ngenye ukubhekana nale nkinga yokungalingani kwazo ingcindezi osmotic. Bazogqunywa urea zabo egazini, nakuba kuyingozi kakhulu. Lezi zidalwa ngisho abe imvilophi ekhethekile gills - ukuvikelwa nosawoti ngokweqile. Ngakho, le misebe bese oshaka ukusekela yangaphakathi usawoti lokuhlushwa kunaleyo Isikhala ezungezile. Ososayensi bakholelwa ukuthi lokhu kube inkomba yokuthi izakhamuzi kwezilwandle lasendulo. Njengalezi angenasawoti, ncela ketshezi wonke.

Kungani izinhlanzi abakwazi ukuphila kunoma iyiphi indawo

Umahluko kulokho izindlela ukuxhumana nge uketshezi ayikuvumeli ukuba nguchwepheshe kuwo wonke olwandle isikhala global. Labo abenza kahle ngamanzi agobhozayo, nizakufela kolwandle. Futhi okuphambene nalokho. Kusukela lo mthetho zikhona ezehlukile. Ngokwesibonelo, wonke umuntu uyazi ukuthi ezinye izinhlanzi kahle uhlala amanzi anosawoti, andise phezu kwemifula. Okungukuthi, zingabantu diadromous - bangaphila kunoma iyiphi imvelo. ukuthi ukuphuza izinhlanzi amanzi kuleli cala kuncike isimo ketshezi ezizungezile. Banomuzwa umzimba, kulokho isiqondiso wathutha inqubo, futhi uma kudingeka, uqale ukudla namanzi. zangaphakathi ngokushesha kabusha ngoLwesithathu. Ngokwesibonelo, kukhona salmon diadromous, Shad, Sturgeon, nezinye izinhlanzi abanye. Njengoba nje ageze kolwandle - baphuze kanye bonke abakhileyo kulo. Lapho ethunyelwe eziyizimbangela, gills zabo ngokushesha avumelane nendawo ezikuyo. Ngakho-ke, abafi ekuphokopheleni emanzini nge lokuhlushwa usawoti. Inqubo ukubuyela emuva emzimbeni we gazinga lapho makehle endaweni yazo yemvelo - kolwandle.

kumnandzi

Ososayensi baye bathola ukuthi esinye futhi owakhileyo, bayokwazi ukuqondisa ibhalansi amanzi ngendlela yokuqala. Ixoxo cynomolgus - esisanda kutholakala amphibian - kuyindlela ongavamile wokuphila. Uhlala kolwandle, kodwa bazalela angenasawoti ezindaweni. Kungenzeka kanjani lokhu? Ukuze wenze lokhu, nemvelo wasungula indlela ekhethekile. Ukuze ingafi, ungalungisa ezingeni urea egazini. Lapho diving olwandle - ke aqoqana. Buthelani eziyizimbangela - kuqeda urea. A amaxoxo ezincane, lapho zikhula, kakhulu, funda ukusebenzisa lolu indlela ukuhamba phakathi yabulala namachibi ezinhlanzi. Lezi ubuhle obumangalisayo bemvelo!

It kuvela ukuthi impendulo elula yalowo mbuzo ukuthi isiphuzo, akunakwenzeka ukuba izinhlanzi. Yiqiniso, bona, njenganoma iyiphi enye eziphilayo, kudingeka umswakama. Bathi nje ukuthole ngendlela yabo, njengoba kuchaza izindlela zemvelo.