Kana tichitaura nezve shark, zvakaoma kuti usaenzanise marudzi ari pakati pavo. Mune ino kesi, isu tichaongorora uye tichienzanisa saizi dzakasiyana mhando dzeshark kuti tizive kuti ndeipi shark yakakura kwazvo pasirese. Shark hove dzemashiripiti dzemhuri yeChondrichthyan. Kune anopfuura mazana matatu nemakumi matatu emarudzi anozivikanwa uye imhuka dzakawanikwa mupasi redu kubvira kare-kare.
Muchikamu chino tichafananidza mamwe emhando dzinonyanya kuzivikanwa dzeshark kuti tizive kuti ndeipi shark yakakura kwazvo pasi rose.
Shark yakakura kwazvo pasi rose
Sezvo paine mhando dzakawanda kwazvo idzo dzinoziva nezve kuvapo kweshark kweanodarika mamirioni mazana mana emakore, zvakaoma kunzwisisa kuti ndeipi shark huru kwazvo pasi rese. Mufananidzo we shark unoonekwa zviri nyore nemunhu wese, pamwe nekuti takavaona mumakungwa, mumishumo yeterevhizheni, muzvinyorwa kana mumamuvhi.
Kune zvimwe zvinozivikanwa kuti shark inozivikanwa se mhuka chaiyo inoita seinodya vanhu vese pasi. Iyo mhando yechikara ine inoshamisa yekufananidza kugona. Nekudaro, shark kana zvakanyanya kupfuura uku kuoneka. Iyo ndeimwe yemhuka huru uye inonakidza kwazvo mumakungwa edu nemumakungwa.
Sezvo paine masaisai akasiyana nemafungiro nezvekuti ndeipi shark huru kwazvo pasirese, isu tichaenda kutanga tagadzira vatatu vevaya vane saizi hombe.
Yakakura chena shark
El White shark Iyo ndeimwe yeanonyanya kuzivikanwa pasi rese. Ndicho chikara chikuru uye chinotyisa chiripo. Iyo inogona kuyera inosvika 1.115 kilos mune yayo yakanaka mamiriro. Iyo nharaunda yekuparadzira inotambanudzira pamusoro penyanza dzenyika dzese. Ivo vanonyanya kuwanda mumvura ine mwero yemahombekombe eNorth America, kumaodzanyemba kweAfrica, uye kumaodzanyemba nekumadokero kweAustralia.
Iine meno akapinza zvakanyanya uye yakaumbwa semusoro wemuseve. Aya mazino akaona akagadzirwa kuti akwanise kutema zvidimbu zvakakura zvenyama kubva kuchinyama. Hapana mubvunzo kuti mhuka inotyiwa kwazvo mugungwa rese uye ine njodzi zvakanyanya kana ichinge yarwiswa sezvo ichikanganisa kuruma kwayo. Yakave yakakurumbira uye inozivikanwa nekutenda kumafirimu aive akatsaurirwa kushark muma 70s uye 80. Mune mafirimu aya, machena mashark akaonekwa achidya ivo protagonists.
Kubva ipapo, Zvinotendwa kuti shark dzese dzinokwanisa kudya vanhu. Uye ndeyekuti hunhu hwemhuka inoyevedza hunodenha. Zvisinei, hazviwanzo kurwisa vanhu, kunze kwekunge vazvikanganisa kune imwe mhuka senge chisimbiso. Inogona zvakare kurwisa vanhu kana ichinzwa kutyisidzirwa. Kuziva kuti hausi nyajambwa kunokusiya wega. Dambudziko nekukurwisa nekuikanganisa kunge imwe mhuka ndeyekuti kurwisa kwaro kwekutanga kazhinji kunowanzoita kuti kuve nekukonzeresa kurasikirwa nemitezo yese.
Kunyangwe kana akakusiya wega uye akaona kuti hausi izvo zvaanga achitsvaga, unenge warasikirwa nenhengo. Hadzi dzakakura kudarika dzevanhurume. Iwo anowanzo kuve akati kurei muhukuru. Mbiri yemhuka inodya varume haina kana mushe nekuti imhuka inosarudza mhuka yayo zvakanaka. Kune huwandu hwakawanda hwemhando dzegungwa dzinokonzeresa kurwiswa pavanhu kupfuura chena shark.
Basking shark
El basking shark kupfuura saizi inogona kusvika kusvika kumamita gumi pakureba uye inorema kusvika matani mana. Ndiyo yechipiri shark yakakura kwazvo pasi rose. Iyo ine hunhu hukuru uye ndiko kuti ivo vanopunyuka kubva mukushambira miromo yavo yakashama. Saka, iri kusefa mvura uye kuunganidza iyo plankton kuti idye yega.
Chimwe chezvinhu zvakakosha zvekudya zvemhuka iyi zooplankton. Kutenda kune kugona kwayo kusefa, inogona kusefa kusvika kumatoni zviuru zviviri zvemvura paawa. Iyo ine imwe yenzira dzekubereka isingazivikanwe zvakadzama nevanhu. Izvo zvinofungidzirwa kuti zvinogona kuve oviparous, asi kana mazai achinge aita kudaro mudumbu raamai. Ndipo apo vechidiki vanopihwa mumwe wavo vasati vakwanisa kuenda kunze. Mhando iyi yekubereka inonzi ovoviviparous.
Imwezve mhando ine hukuru husingaenzanisike hwemuromo wayo asi haina kukuvadza zvachose. Kukura kwemiromo yavo kunokonzerwa nefirita yavo yekudyisa. Inofarira mvura inotonhora asi padyo nepamusoro. Naizvozvo, tinogona kuiwana zviri nyore munzvimbo dziri kure neEquator uye inogona kutowanikwa mune chero gungwa nemakungwa pasi.
Whale shark
El whale shark nezita ndiro rinoratidza izvozvo Ndiyo huru pane hove dzose dzinogara pasi pano. Zvinogona kutaurwa kuti ndiyo shark yakakura kwazvo pasi rose. Iyo shark inosvika makumi matatu nematanhatu pakurema. Iyo inodya pane plankton, diki algae, hove diki, uye crustaceans. Inorima nemumakungwa ese epasi. Kunyangwe iri shark uye inowanzo kuve nayo, iri shasha yekurwira.
Yakareba mamita makumi maviri. Kana yashama muromo wayo inokwanisa kumedza mvura yozoipomba nemumagill ayo. Mumagill aya ane zvimiro zvakanaka zvinodaidzwa kuti dermal denticles uye ivo vanokwanisa kubata chinenge chero chisikwa chinoitika kuva 20 mm pakureba.
Iyi specimen ndiyo inogona kunzi samambo wemadzimambo. Inoonekwa seshark yakakura kwazvo pasi rese uye inokwanisa kukuita kuti ubvunde kana uri padhuze nayo. Zvisinei, haina kukuvadza sezvinoita dolphin. Haisi tyisidziro kuvanhu kana kune akawanda marudzi egungwa.
Kunyangwe ichifamba nemumakungwa ese nemumakungwa epasi rese, tinogona kuiwana kazhinji munzvimbo dziri pedyo neEquator, uko mvura inodziya uye inoita kuti iwedzere kutaridzika pakuonekwa kweplankton.
Ndinovimba kuti neruzivo urwu unogona kudzidza zvakawanda nezve shark hombe kwazvo pasirese.