Spike - inhlanzi, ngokungafani kwamanye

Buka Sturgeon has ngaphezu abamele kweshumi. Nokho, omunye okurarako iyona iva izinhlanzi. Phela, uma ukholelwa ukuthi ososayensi ucwaningo, lo eziphila olwandle izovela ngenxa nezinye izinhlobo sobunye. Ngokwesibonelo, e-pool isakhi sofuzo se-spike kukhona iminonjana Sturgeon, Beluga futhi stellate Sturgeon.

Ngakho ake lokumba nezwe elimangalisayo imvelo bese ucoca ngalokho nezinye izimfihlo ukufihla izinhlanzi lwameva. Siyazi ukuthi waba libukeka, lapho izimpilo nalokho akudlayo. Futhi ukuzama ukuqonda ukuthi kungani ayengekho manje onqenqemeni yokuqothulwa.

Fish spike: incazelo

Abadala ongafinyelela amamitha amabili ubude. Kodwa iningi bale zinhlobo mancane kakhulu. Umzimba side, nemisho enamandla spikes oyindilinga ngemuva. Empeleni, kuba ngenxa kubo le nhlanzi uthola igama layo.

Spike luhluke izihlobo zabo eliseduze. Ngokwesibonelo, ngokungafani namanye amalungu Sturgeon, uye a izimpondo insephe enamathiselwe udebe lwangezansi. Lesi sici bokuphila spike etholakele okhokho babo, okwadingeka lwemisuka ne Sturgeon.

Ngokuqondene umbala, kuhluka grey ukukhanya ogqamile. Kodwa isisu ukukhanya inhlanzi, awube mhlophe. Ngaphezu kwalokho, ameva star emise embozwe izikali ngokuvamisile abukwa kalula kuwo wonke umzimba.

endaweni

Ngakho lapho iyikhaya iyokumba eqolo? Fish azizwa kahle ngokulinganayo kuzo zombili usawoti namanzi ahlanzekile. Ngakho-ke, ububanzi budlulela phezu amakhilomitha amaningi, emangalisayo wamangaza ososayensi abaningi.

Ngakho, laba bameleli kwalesi silwane zingatholakala ku iCaspian Sea, ne-Aral Sea, le Azov futhi woLwandle Olumnyama, futhi ezilwandle emifula ukuthi kukhona ezakhelene lawo manzi. Ikakhulukazi, labantu spike esikhulu abahlala Urals, Kure futhi Sefidrud.

Spike - owasinda inhlanzi

Indlela yokuphila izinhlanzi iqala amanzi ahlanzekile. Ngakho-ke, nge obhekwe entwasahlobo abadala baqale uthuthe umfula, ukuze sifinyelele namadlelo ayo zidala. Lapha amaqanda, bese ubuyela emuva lapho waya olwandle.

Ngokushesha amaqanda avele gazinga. Kufanele kuqashelwe ukuthi intsha akuzona ezisheshayo ukushiya amanzi abo. Kulinganiselwa ukuthi ngonyaka, bese kuphela bazoya amanzi usawoti, ngenhlanhla kubutsela amandla ngoba impilo yasolwandle. ameva amaningi Kuyoze kube uhlala e-esizalweni somfula, njengoba zokugcina umngcele ngabo akulula.

Ngokuphathelene umjikelezo wokuphila, spike - izinhlanzi osindile. Ngokwesilinganiso, laba bameleli kwalesi silwane baphila iminyaka engaba ngu 20-22. Nokho, isayensi kuba khona lezo zinhlanzi aphila iminyaka engaba ngu amathathu, okungukuthi inkomba ngokuba izakhamuzi zombuso kwamanzi.

imikhuba inhlanzi

Abaningi bakholelwa spike evilaphayo izinhlanzi, kodwa lokhu akulona iqiniso. Eqinisweni, lesi nenhlalakahle nje ayithandi ukwenza kunoma iziphi izinhlangano ezixuba ezingadingekile futhi ngenxa it ukhetha ukuphila ukuphila ethule. Nokho, lokhu akusho ukuthi spike ethulile futhi ayinangozi. Ngokwesibonelo, ku-ekuzingeleni ke usabela ngendlela emangalisayo okusheshayo, ngaphandle kokunikeza isisulu kungekho thuba lokusinda.

IRed incwadi

Spike - inhlanzi, bhalisiwe e Red Book of Russia. Kwenzeka isimanga ngoba ekuqaleni kwekhulu XX ukuthi ivunyelwe catch, okuyinto kwalinciphisa kakhulu lalezi zinyoni. Ngakho, ngo-1980, abantu bakhona yehlile cishe ngo-80%, okuyinto ukhathazwa ososayensi kanye nalabo abafuna ukuvikela imvelo. Ngakho-ke, isimemezelo esikhethekile wakhishwa ngo-1983, owawuthi spike sasitholakala kuyi Encwadi Red. Ngeshwa, lezi zinyathelo zehlulekile ulungise isimo samanje.

Ngisho nanamuhla, spike nhlanzi esengozini yokuqothulwa. Blame yokuthi spike esefinyelele ukuvuthwa ngokobulili kuphela ngonyaka weshumi nambili zokuphila kwakhe. Futhi ngenxa yalokho, abantu abaningi ukufa ngokushesha kunezinsuku isikhathi ukuze baveze umntwana wokuqala.