Nhasi ticha taura nezve imwe mhando isinganzwisisike ye shark. Zvayo ndezve basking shark. Zita rayo resainzi ndi cetorhinus maximus uye inoonekwa sehove yechipiri pakukura pasi rose. Iyo inokwanisa kusvika gumi metres pakureba uye kusvika kumatoni mana muhuremu. Iyo ine inoyevedza silhouette inoita iyo ive yekuvhima shark uye inopinza mhino. Inonyatso kuzivikanwa kune vanhu vanofarira gungwa.
Muchinyorwa chino tichaudza zvese nezve basking shark, kubva kune hunhu hwahwo kune iyo yainobereka.
Mhando huru
Iyo ine yakanaka hydrodynamic chimiro kunyangwe ichifamba zvishoma. Mhino yayo yakapinza inoibatsira kufura nekusefa mvura. Kazhinji inoshambira yakashama muromo kuti ikwanise kuitenderedza uye kusefa mvura kuburikidza nemumhino.
Kazhinji, ivo vanoonekwa kubva kumahombekombe uye vashanyi vanowanzo bvunza kuti vanovaona sei. Pamusoro pechiso ivo vanowanzoonekwa uye vanoshivira kuvepo kwevanhu. Kunyangwe chitarisiko chayo chingave chinotyisa, hachina njodzi zvachose. Kana iwe ukaenda pane imwe nzvimbo yegungwa, shark ichauya zvechokwadi kwauri kuzotarisa, asi pasina kukukuvadza.
Maitiro aya ane moyo munyoro kuvanhu anoita kuti chive chinhu chekuvhima zvisina tsarukano nevabati vehove. Ukuru uye huremu hwazvakavashandira kuti vawane purofiti yakakwira muzvikepe zvekutengesa. Shark chete inokwanisa kugadzira tani yenyama uye mazana mana emafuta. Chiropa chakapfuma kwazvo muvhithamini uye chinogona kumiririra kusvika pa25% yehuremu hwese hwemhuka.
Kutambudzwa kwakaitwa mhuka iyi munguva yakapfuura kwakonzera kuti vanhu vayo vadzikiswe kusvika pakuti vanhu vazhinji varipo vanochengetedzwa nemutemo munzvimbo zhinji dzenyika.
Habitat nenzvimbo yekugovera
Iyo basking shark inogona kuwanikwa munzvimbo dze pelagic, saka tinogona kuzviona kazhinji munzvimbo dzemahombekombe. Nzvimbo yaro yekuparadzira yakafara kwazvo, saka zvakanyanya pasirese. Kubva kunzvimbo dzakanyanya kumvura kusvika kunzvimbo dzinopisa. Ivo vane kugona kuenderana nharaunda dzakasiyana.
Ivo vanogona kuoneka pamusoro pemakona emakondinendi emakondinendi. Kunyangwe vachisarudza mvura inotonhorera, vanowanzo gara munzvimbo dzine tembiricha iri pakati pe8 ne14 degrees. Inowanzoonekwa munzvimbo dzepedyo uye kumahombekombe uye zvakajairika kuti ivo vanokwanisa kusvika kunzvimbo dzemabhesi uye zviteshi.
Ivo vanotsvaga chikafu munzvimbo dzakakura dzeplankton mumvura isina kudzika. Zvakajairika kuvaona vachishambira padyo nepadenga. Rudzi urwu rwe shark rune mafambiro ekufamba. Ivo vanokwanisa kufamba nzendo refu kwazvo mugungwa uye vanozviita nekutevera shanduko yemwaka kuti igare iri pane tembiricha yakakodzera.
Munguva yechando vanopedza nguva yakareba padyo negungwa kutsvaga chikafu, nekuti pane zvishoma zvimwe pamusoro. Iyo inokwanisa kukwira pasi kusvika zana kana zviuru zvemamita zvakadzika.
Basking shark kudyisa
Kunyangwe nekuda kwehukuru hwadzo uye inoonekwa uye yakasviba chimiro ivo vachiita kunge vanodya dzimwe mhuka dzakadai semasaini nedzimwe hove, izvi hazvisizvo. Kunyangwe ichitaridzika zvinotyisa, ine chikafu chinodiwa. Izvo ndezve zooplankton. Zooplankton imhuka diki dzinowanikwa padyo nepamusoro pemvura. Izvo zvisikwa zvemumvura uye vakashambira vakashata, saka zvinokosheka kubata.
Sezvo pamusoro zooplankton inova shoma munguva yechando, iyo basking shark inofanirwa kutamira kune yakadzika yakadzika kunotsvaga chikafu kana kufamba zviuru zvemakiromita kunotsvaga chikafu.
Chokwadi urikushamisika kuti mhuka iyi inoita sei kuti ikwanise kupatsanura plankton nemvura yainomedza. Maitiro aya anozviita nenzira inonakidza uye iri nekuda kwehumwe hunhu hwepanyama. Iyo ine gill rakers iyo yakareba uye yakatetepa rakes iyo inoshanda kusefa iyo plankton kubva mumvura. Aya maraki anonyanya kudikanwa pakudyisa. Iyo yakawandisa mvura yavanoshandisa inodzingwa kuburikidza nemuviri kuburikidza neyakagadzika matombo.
Iyo magemenzi emhuka idzi anoshanda nesimba zvekuti anofanirwa kutsiviwa pagore. Iwo anowanzo kuraswa mukati memwedzi yechando uye obuda zvakare mukati megore kana paine plankton yekusefa kunze padyo nepamusoro.
Kuberekerwa
Mhuka idzi vanosvika pakukura pabonde pavanosvika makore angangoita gumi. Vasati vayedza kubereka sezvo ivo vasati vaine kukwana kwakakwana munhengo kuve nemwana. Mhando yekubereka yavanayo ndeye ovoviviparous. Izvi zvinoreva kuti, kunyange hazvo madiki achichekera mazai, anoita kudaro kubva mudumbu raamai. Aya mazai achachurukira mukati memukadzi kusvikira mazai aumbwa uye aumbwa zvizere.
Chikamu chakasarudzika chekucheresa shark ndipo panotanga mwaka wezhizha neyakareba gore rekutarisira. Parizvino, kana ecosystem haina kunge yavanofarira kana kuvafarira kuva nezvisikwa zvidiki. Naizvozvo, ivo vanokwanisa kugona kuwedzera nguva yekubata kusvika pamakore matatu. Iko kugona kurarama kunovapa iwo mukana wekugona kusarudza kuti ndeipi nguva yakanyanya kunaka yekuti vechidiki vabudirire pakubereka.
Basking shark maitiro
Nezve hunhu hwemhuka iyi, tinogona kutaura kuti inoda kushambira munzvimbo dziri padyo nepamusoro pegungwa nekuda kwekuti ndipo panowanikwa zvinovaka muviri uye huwandu hwe zooplankton iyo yainogona kumedza. Iyo tembiricha pane ese ari maviri mvura nekunze zviri chinhu chinotarisa kuti chingave chiri pamusoro kwenguva yakareba here kana kuti chinofanira kutamira kunzvimbo dzakadzika.
Imhuka isinganetsi kushamwaridzana iyo inowanzo gadzira mapoka e anosvika zana ezvienzaniso uye ivo hapana chavanoita kumunhu wenyama. Iye anokwanisa kutaurirana nevamwe vake achioneka nekungofambisa maziso ake kumativi. Izvi zvinovabatsira kuti vazive kana zvikara, zvikepe, nezvimwewo zviri kuuya.
Ndinovimba kuti neruzivo urwu unogona kudzidza zvakawanda nezve basking shark nezvose zvakakomberedza.