Mawonekedwe ndi malo okhala katran
Shark-katran kapena dzina lofala - wamba katani wambiri, komanso galu wam'nyanja amapezeka m'madzi ambiri.
Ngakhale ziyenera kudziwika kuti ali ndi zokonda posankha malo okhala. Katran shark posakhala woimira thermophilic wa mtundu wa shark, amasangalala m'madzi ozizira am'nyanja, chifukwa chake, samakonda nyanja zotentha.
Zowona, mu Nyanja yakuda katranu Ndimakonda kukhala ndi moyo, mwina chifukwa madzi am'deralo ali ndi zinyama ndi zomera zapadera. Kupita kutali ndi gombe, sikuli m'malamulo ake, amasankha madzi am'mbali. M'madzi osaya, "nsomba" iyi samasambira nthawi zambiri, amakonda moyo wakuya kuchokera pa 100 mpaka 200 mita muufumu wamdima.
Kuyang'ana katran shark chithunzi, ndiye mutha kuwona kuti zili ngati nthumwi wamba ya mitundu ya sturgeon, komabe, nyama zowonongekazi zimaperekedwa ndi thupi lopangidwa ndi ndudu, pakamwa pa shark komanso mawonekedwe osawoneka bwino a maso ake akuda opanda kanthu, ofanana ndi mipira yamagalasi.
Chodziwika bwino cha woimira mtundu wa shark ndikosowa kwa zokutira, kusowa kwa chimbudzi chakumapeto, ndi mitsempha yaminga yomwe ili kumbali yakumapeto kwa kumapeto. Kusintha kotere ndi mtundu wa chitetezo.
Mchira wa shark umafanana ndi kupalasa. Komabe, zizindikilo zomwe zimawoneka zowoneka zilipo mwa mafuko onse amtunduwu wa nsombazi. Kawirikawiri nsombazi za mtunduwu sizikula kupitirira 1.5 mita, ndipo kulemera kwawo sikumafikira makilogalamu 12 mpaka 15, ngakhale atha kukhala ndi mwayi kenako n`zotheka kukumana ndi munthu wokulirapo - 2 mita wokhala ndi makilogalamu 20.
Chikhalidwe cha katran chasokoneza utoto wake chifukwa chake utoto wake suli wowala kwambiri, mtundu wamtundu wanthawi zonse, nthawi zina umakhala ndi mthunzi wabuluu kapena wachitsulo. Mawanga opepuka amatha kuzindikiridwa kumbuyo ndi mbali.
Monga shaki zonse, mano a katran, omwe asagwiritsidwe ntchito, nthawi ndi nthawi amasinthidwa ndi mano atsopano. Akatswiri apeza kuti pa moyo wonse wa shark, pakamwa pa nyamayi pali mano okwana 1,000. Kuthekera kotereku kumatha kuchitidwa nsanje - kuti asadye nsomba iyi nkhomaliro, sakuwopa kuti iyenera kuyika mano kuti apange pogaya chakudya chotafuna.
Mafupa a nthumwi ya sharki ndi cartilaginous. Izi zimathandiza katran kusisita thupi lake ndi kuyenda mofulumira. Nsomba zothamanga bwino ziyenera kuthokoza chifukwa cha zipsepse zake. Kuphatikiza apo, zipsepazi zimathandiza kuti nsombazo zizikhala zowongoka kapena zopingasa. Koma mchira uli ndi ntchito yake - kupereka chiwongolero.
Khalidwe ndi moyo
Chiwalo - mzere wotsatira - chimagwira gawo limodzi pakuwongolera m'madzi am'nyanja opanda malire. Chifukwa cha chiwalo chapaderachi, nsombayo imatha kumva kugwedera kulikonse, ngakhale pang'ono chabe.
Auls akuyenera kunena chifukwa cha kununkhiza - maenje - miphuno yomwe imapita pakhosi. Shaki imatha kujambula patali bwino chinthu chapadera chomwe wozunzidwayo amabisa akachita mantha.
Maonekedwe a nsombazi amalankhula zokha. zikuwonekeratu koyamba kuti iyi ndi nsomba yoyenda, yomwe imatha kupanga liwiro labwino ndikuthamangitsa nyama mpaka itafika.
Zachidziwikire kuti anthu ambiri ali ndi chidwi ndi funso loti: "Kodi prickick shark ndi ngozi kwa anthu?" Apa muyenera kuchotsa kukayika konse ndikuyankha mosapita m'mbali kuti Kameme TV samaukira munthu.
Pachifukwa ichi, galu shark siowopsa kuposa nsomba kapena pikoko, yomwe, monga katran, ili ndi minga zotayira kumbuyo kwake. Chifukwa chake katran shark yemwe amakhala ku Black Sea, komanso munyanja ina iliyonse yam'nyanja, sakhala pachiwopsezo kwa anthu.
Zachidziwikire, ngati mungayesetse kukwapula ndi manja osaziteteza nyanja yakuda shark-katran, ndiye kuti mwayi wolanda ndiwokwera. Kuphatikiza apo, malo obayira jekeseni amatha kutupa. Ngakhale pali ma daredevils ochepa omwe angakhudze nsombazo ndi manja awo.
Sitikulimbikitsidwanso kuti muwone ngati mano a shark akuthwa kapena ayi - kuvulazidwa ndichinthu chovuta. Ndipo mwachilengedwe, simuyenera kukwapula galu wam'madzi "motsutsana ndi njere", chifukwa, choyamba, sizingakonde ndipo, kachiwiri, sikelo za nsomba ndizochepa, koma zokutira thupi.
Chosangalatsa: Khungu louma la nsombazi, lomwe limafanana ndi emery, limagwiritsidwa ntchito kupangira matabwa - matabwawo amakhala pamchenga ndikupukutidwa.
Tikaganiza za katrana kuchokera pakuwopsa kwa okhala kunyanja, ziyenera kudziwika kuti okhala m'mphepete mwa nyanja akhala akuzindikira kale kuti kuchuluka kwa dolphin kumachepa chaka chilichonse, komanso kuyenera kwake, kuphatikiza woimira mtundu wa shark.
Ngakhale mawuwa ndi ovuta kukhulupirira, chifukwa nsombazi ndizofanana ndi dolphin chifukwa chake a Katran sazisaka nyama zokha, kupatula mwina pagulu. Munthu wazindikira kalekale katrana chiwindi chachikulu, chomwe chili ndi nsomba yothandiza kwambiri wonenepa.
Kuti mumve zambiri: Vitamini A wokhala ndi chiwindi cha shark amakhala ndi nthawi 10 kuposa chiwindi cha cod. Kuphatikiza apo, nyamayo ndi yofewa modabwitsa ndipo, itakonzedwa mosamala, imatha kukhala chakudya chokoma cha gourmets patebulo.
Katran shark zakudya
Shark yamtunduwu imakonda kudya mitundu yaying'ono ya nsomba - anchovy, hering'i. Ngakhale amakonda nsomba zazikulu pamasana, mwachitsanzo, mackerel kapena mackerel. Ndipo molluscs am'nyanja, squid ndi crustaceans nthawi zambiri amapatsidwa ndi prickly shark pakudya.
Zowopsa kwambiri, nyama yayikulu yamtundu wa sharkyi ndi nsomba zophunzirira, zomwe zimatchedwanso pelagic - zomwe zimakhala m'mbali mwa madzi. Asodzi amagwiritsa ntchito izi posodza kwawo - amadziwa kuti njira yosavuta kwambiri yogwirira katran ndipamene pali nsapato zazikulu za herring kapena mackerel.
Kubereka ndi chiyembekezo cha moyo
Shaki wonyezimira ndi woimira mtundu wa ovoviviparous shark. Mkazi amatenga mazira m'mapapiso apadera omwe amakhala mu oviduct pafupifupi zaka ziwiri. Shark wachichepere amabadwa mu nambala kuyambira 15 mpaka 20 ndipo samaposa kotala la mita kukula.
Ana a Shark amakula msanga, ndipo ana obadwa ndi katran amasinthidwa nthawi yomweyo kuti azikhala moyo wodya nyama, zomwe sizosiyana ndi moyo wamakolo.
Pofika zaka 12, nsombazi zachinyamata zimakhala zogonana, zomwe zikutanthauza kuti zimatha kuberekanso. Ndizosangalatsa kuti ma katrans amasiyanitsidwa ndiukwati umodzi, ndiye kuti, amakhala ndi anzawo nthawi zonse pamoyo, yemwe nsombayi imamanga ubale wapabanja. Kutalika kwa moyo pamiyeso ya nsomba ndi kwakukulu - kotala la zana limodzi kapena kupitilira apo, chifukwa chake mtundu uwu wa shark umatha kutchedwa chiwindi chotalika.
