Izinhlanzi eziningi zidliwa ngohlobo oluthile. Amaningi atholakala kahle othosiwe, amanye abhema kamnandi, afakwa usawoti, omisiwe, amanye alungele ukubilisa isobho lenhlanzi. Kodwa kunezinhlanzi ezinhlobonhlobo, ongapheka kuzo noma yini, futhi noma yisiphi isidlo siyoba mnandi. Inhlanzi enjalo ibuye ibhekwe sabrefish.
Ukuvela kwe-sabrefish
IChekhon ingeyomndeni omkhulu wezinhlanzi ze-carp. Le yinhlanzi yesikole, inhlanzi enamadomous ehlala emanzini amasha. Ngaphandle, inhlanzi ethokozisayo, futhi isici sayo esiyinhloko esihlukanisayo yizikali ezincane kakhulu ezicwebezelayo, njengokungathi zimbozwe ngesiliva. Umzimba ucindezelwe kakhulu kusuka ezinhlangothini, ikhanda lincane, linamehlo amakhulu nomlomo ogobile ngokucijile.
Ngaphezu kwalokho, isimo somzimba wakhe asijwayelekile - umhlane wakhe uqonde ngokuphelele, isisu sakhe siyindunduma. Ngenxa yalokhu ifaka isaber ebizwa nangokuthi i-saber, saber, side, Czech. Isisu sine-keel ngaphandle kwezikali. Umbala wesikali senhlanzi ngemuva uluhlaza okotshani noma luhlaza okwesibhakabhaka, izinhlangothi ziyisiliva.
Amaphiko omhlane nomsila ampunga, kanti amaphiko aphansi abomvu ngokubomvu. Amaphiko we-pectoral makhulu kakhulu enhlanzini yalolu sayizi, futhi amise okomzimba we-sabrefish. Isitho sezinzwa - ulayini ohlangothini, otholakala ngendlela ye-zigzag, eduze kwesisu.
Inhlanzi yaseCzech incane, ubude bayo buyi-60 cm, inesisindo esingu-2 kg, kepha abantu abanjalo bangabesibonelo se-trophy, ngoba bayivelakancane. Ezingeni lezimboni, kuvunwa abantu abancane - usayizi ojwayelekile wabo ungama-20-30 cm ubude no-150-200 amagremu wesisindo. Yilawa maCzech amancane athengwa kaningi esitolo ngendlela eyomile noma ebhemayo. I-sabrefish eyomile izinhlanzi ezihlwabusayo kakhulu.
Indawo yokuhlala yeSabrefish
IChekhon yizinhlanzi ezinama-semi-anadromous emigodini yezilwandle iBaltic, i-Aral, iBlack, iCaspian ne-Azov. Ihlala kakhulu emanzini ahlanzekile, yize ingaphila kunoma yimuphi usawoti futhi idale amafomu okuhlala olwandle.
Indawo yokuhlala nesabrefish likhulu kakhulu - izindawo zokuhlala kwalo unomphela zihlanganisa iRussia, iPoland, iJalimane, iFrance, iRomania, iHungary, iBulgaria namanye amazwe amaningi aseYurophu nase-Asia. Amaningi kakhulu emifuleni iDnieper, iDon, iDniester, iDanube, uKuban, iWestern Dvina, iKura, iBug, iTerek, iUral, iVolga, iNeva, i-Amu Darya neSyrdarya.
Uma sikhuluma ngamachibi, inani elikhulu lawo lihlala echibini lase-Onega, eLadoga, eLake Ilmen naseKelif. Ibuye ihlale kwamanye amadamu. Ngaphandle kwendawo yayo enkulu, kwezinye izifunda sabrefish luhlobo olusengozini futhi luvikelwe iziphathimandla. Lezi zindawo zibandakanya izindawo ezingenhla ze-Dnieper esifundeni saseBryansk, uMfula i-Severny Donets, iLake Chelkar.
IChekhon ithanda amadamu aphakathi nendawo namakhulu; ayitholakali emifuleni emincane nasemachibini. Kukhetha izindawo ezijulile, ezikhule ngokweqile. Kwesinye isikhathi usebenzisa isikhathi kuma-shoals, kepha kuphela uma kukhona umsinga osheshayo. Uthanda izindawo eziseduze neziphepho kanye nama-rapids. Azikho izinhlanzi ezihamba ngasogwini.
Indlela yokuphila yeSabrefish
Inhlanzi eyi-saber iyasebenza, inempilo futhi ayesabi. Emini uhlala ehamba, kepha angahambi kude "nendawo ahlala kuyo" unomphela. Ehlobo, inhlanzi inyukela phezulu emanzini ntambama, ifuna ukudla. Ebusuku, lishona phansi lize licashe lapho ezindlini zokukhosela ezahlukahlukene, ukungahleleki kwaphansi.
Kuyafana nangemva kwalokho ekwindla ukubanda okubandayo, sabrefish Ihlala ekujuleni, futhi ichitha izinyanga zasebusika emigodini nasezivunguvungwini, ilele lapho emihlambini yabantu abaningi. Uma ubusika bungebuhlungu kakhulu, khona-ke izikole zezinhlanzi zihamba kancane, emakhazeni amakhulu zilala ziqinile ezansi, cishe azidli, ngakho-ke ngalesi sikhathi ukubamba isaber ayenziwanga.
Entwasahlobo, owesifazane waseCzech ubuthana ezikoleni ezinkulu bese eya kozala. Ekwindla, liphinde liqoqe ngemihlambi futhi lilungiselele ubusika. Ngalesi sikhathi, uhola indlela yokuphila ekhuthele kakhulu futhi ondla kakhulu.
Ukudla kweSabrefish
UChekhon uzondla ngokudla kokudla kwezitshalo nezilwane emini. Kuyenzeka, ngenkathi yasehlobo, kugxume kuphume emanzini ukubamba izinambuzane ezizungeza ngaphezu kwawo. Izinhlanzi ezisencane zondla kakhulu e-zoo nase-phytoplankton. Futhi lapho ikhula, idla izibungu, izibungu, izinambuzane kanye nefry yezinhlanzi ezahlukahlukene.
Uma emane ecosha izinambuzane phansi noma ezibamba ngaphezulu kwamanzi, khona-ke kufanele azingele gazinga. Owesifazane waseCzech uvame ukubhukuda nezisulu emhlambini ofanayo, bese ebamba ngokushesha inyamazane bese eya nayo ezansi nayo. Bese ebuyela elandelayo. Le nhlanzi ephilayo ihlasela ngokulangazela nangokushesha.
Lesi sici siyaziwa abadobi, futhi bayazi ukuthi i-sabrefish icishe ibe omnivorous, ngakho-ke, cishe noma iziphi izinambuzane zisetshenziswa njengesithiyelo: izimpethu, izimpethu zomswani, izimpukane, izinyosi, izintethe, ojekamanzi nezinye izilwane. Ngaphezu kwalokho, inhlanzi ingakhonkotha ngehhuku elingenalutho, iboshwe kuphela ngentambo ebomvu noma lapho kufakwe khona ubuhlalu.
Ukuzaliswa kanye nesikhathi sokuphila se-sabrefish
I-sabrefish ingazala kabusha ineminyaka engu-3-5 (ezifundeni eziseningizimu ngaphambi kancane - ngeminyaka engu-2-3, enyakatho ngo-4-5). Iqala ukuzala ngoMeyi-Juni, futhi izinhlanzi ezincane zikwenza lokhu ngaphambi kwabantu abakhulu. Isimo esiyinhloko sokuqala ukuzala ukushisa kwamanzi ngama-20-23 Cº, ngakho-ke, futhi ezindaweni eziseningizimu, ukuzala kuqala ekuqaleni.
Ngaphambi kokuzala, i-sabrefish idla okuncane kakhulu, ihlangana ngezicathulo ezinkulu futhi ibheke indawo yokubeka amaqanda. Izindawo ezinesimo samanje esinamandla futhi ukujula kwamamitha ayi-1 kuya kwayi-3 zifanelekile, lawa angajulile, amathe esihlabathi, imifantu yemifula.
Ukuzalela kwenzeka kuma-run amabili eningizimu, futhi ngasikhathi sinye ezifundeni ezisenyakatho. Emifuleni, i-sabrefish izala, iqhubekele phezulu umfula, bese ibuyela emuva phansi. Amaqanda awanamathele, ngakho-ke awahlanganisi ku-algae noma kwezinye izinto emanzini, kepha ashibilika phansi.
Zingu-1.5 mm ngosayizi. ngobubanzi, bese kuthi ngemuva kokukhulelwa, uhlale phansi bese uvuvuka lapho, ukwanda ngevolumu kuze kufike ku-3-4 mm. Ngokuya ngamazinga okushisa kwamanzi, amaqanda avuthwa ezinsukwini ezingama-2-4, bese kuthi ama-5 mm aqhume kuwo.
Izinhlanzi zikhula ngokushesha, zizondla endaweni yazo yokugcina izikhuphasha, ziqoqane ngemihlambi emincane futhi zifudukele ezansi nomfula. Ngemuva kwezinsuku eziyi-10, bashintshela kwiplankton, bese beyondla isikhathi eside. I-sabrefish ikhula ngokushesha okukhulu eminyakeni yokuqala engu-3-5. Ngemuva kwalokho ukukhula kuyehla, ngakho-ke, yize kunesikhathi sokuphila seminyaka ecishe ibe yishumi, kuyaqabukela ukuthi noma ngubani akwazi ukubamba umuntu omkhulu kakhulu.
