[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.jmtcz.cz\/jsou-korali-zivocichove-ci-podivne-rostliny\/#Article","mainEntityOfPage":"https:\/\/www.jmtcz.cz\/jsou-korali-zivocichove-ci-podivne-rostliny\/","headline":"Jsou kor\u00e1li \u017eivo\u010dichov\u00e9 \u010di podivn\u00e9 rostliny?","name":"Jsou kor\u00e1li \u017eivo\u010dichov\u00e9 \u010di podivn\u00e9 rostliny?","description":"Lid\u00e9 t\u011bmto zvl\u00e1\u0161tn\u00edm \u017eivo\u010dich\u016fm \u0159\u00edkaj\u00ed nespr\u00e1vn\u011b kor\u00e1li, spr\u00e1vn\u00fd n\u00e1zev v\u0161ak zn\u00ed kor\u00e1lnatci. Spole\u010dn\u011b se sasankami, med\u00fazami a nezmary pat\u0159\u00ed mezi \u017eahavce. N\u011bkter\u00e9 druhy vytv\u00e1\u0159ej\u00ed v\u00e1penit\u00e9 kostry, kter\u00e9 se ukl\u00e1daj\u00ed na dn\u011b mo\u0159\u00ed a tvo\u0159\u00ed tak z\u00e1klad kor\u00e1lov\u00fdch \u00fates\u016f a ostrov\u016f. Kor\u00e1lnatci se vyskytuj\u00ed pouze v\u00a0mo\u0159\u00edch a oce\u00e1nech. D\u011bl\u00ed se podle po\u010dtu chapadel na \u0161esti\u010detn\u00e9 \u010di […]","datePublished":"2025-03-03","dateModified":"2025-03-03","author":{"@type":"Person","@id":"https:\/\/www.jmtcz.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.jmtcz.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/aa13f0f1a5b61a2deba1492ce3bb4afe8e77d91eeb44c23db0ee08765a93abad?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/aa13f0f1a5b61a2deba1492ce3bb4afe8e77d91eeb44c23db0ee08765a93abad?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"jmtcz.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.jmtcz.cz\/wp-content\/uploads\/img_a305750_w1702_t1517216504.jpg","url":"https:\/\/www.jmtcz.cz\/wp-content\/uploads\/img_a305750_w1702_t1517216504.jpg","height":0,"width":0},"url":"https:\/\/www.jmtcz.cz\/jsou-korali-zivocichove-ci-podivne-rostliny\/","wordCount":401,"articleBody":"Lid\u00e9 t\u011bmto zvl\u00e1\u0161tn\u00edm \u017eivo\u010dich\u016fm \u0159\u00edkaj\u00ed nespr\u00e1vn\u011b kor\u00e1li, spr\u00e1vn\u00fd n\u00e1zev v\u0161ak zn\u00ed kor\u00e1lnatci. Spole\u010dn\u011b se sasankami, med\u00fazami a nezmary pat\u0159\u00ed mezi \u017eahavce. N\u011bkter\u00e9 druhy vytv\u00e1\u0159ej\u00ed v\u00e1penit\u00e9 kostry, kter\u00e9 se ukl\u00e1daj\u00ed na dn\u011b mo\u0159\u00ed a tvo\u0159\u00ed tak z\u00e1klad kor\u00e1lov\u00fdch \u00fates\u016f a ostrov\u016f. Kor\u00e1lnatci se vyskytuj\u00ed pouze v\u00a0mo\u0159\u00edch a oce\u00e1nech. D\u011bl\u00ed se podle po\u010dtu chapadel na \u0161esti\u010detn\u00e9 \u010di osmi\u010detn\u00e9. Kor\u00e1lov\u00e9 \u00fatesy a ostrovy vznikaj\u00ed \u010dinnost\u00ed kor\u00e1lnatc\u016f. Jedinci ve spodn\u00edch vrstv\u00e1ch postupn\u011b odum\u00edraj\u00ed a na nich nar\u016fstaj\u00ed nov\u00e9 kor\u00e1li.Jak kor\u00e1lnatci \u017eij\u00ed a \u010d\u00edm se \u017eiv\u00ed?Cel\u00e1 \u0159ada druh\u016f kor\u00e1lnatc\u016f m\u00e1 sv\u00e9m t\u011ble obsa\u017een\u00e9 symbiotick\u00e9 \u0159asy, kter\u00e9 jim dod\u00e1vaj\u00ed pot\u0159ebn\u00e9 \u017eiviny. Kor\u00e1li je pak v\u00fdm\u011bnou z\u00e1sobuj\u00ed odpadn\u00edmi l\u00e1tkami, kter\u00e9 pot\u0159ebuj\u00ed \u0159asy ke sv\u00e9mu \u017eivotu. Tito kor\u00e1lnatci z\u00e1visl\u00ed na \u0159as\u00e1ch, se vyskytuj\u00ed pouze jen v\u00a0takov\u00fdch hloubk\u00e1ch, kam pronikne slune\u010dn\u00ed sv\u011btlo. Zbytek potravy tvo\u0159\u00ed plankton a drobn\u00ed \u017eivo\u010dichov\u00e9, kter\u00e9 chytaj\u00ed pomoc\u00ed \u017eahav\u00fdch bun\u011bk na sv\u00fdch chapadlech. Jejich \u017eahav\u00e9 bu\u0148ky jsou vybaveny \u017eahav\u00fdmi vl\u00e1kny s drobn\u00fdmi\u00a0h\u00e1\u010dky. Mezi \u0161esti\u010detn\u00e9 kor\u00e1lnatce \u0159ad\u00edme sasanky. Ty mohou dokonce \u017e\u00edt jednotliv\u011b, nemaj\u00ed pevnou kostru, a tak se mohou pohybovat. Jsou tak\u00e9 v\u011bt\u0161\u00ed ne\u017e kor\u00e1li, mohou m\u00edt n\u011bkolik des\u00edtek centimetr\u016f. Sv\u00fdmi \u017eahav\u00fdmi chapadly dok\u00e1\u017eou ulovit i men\u0161\u00ed rybi\u010dky.Jak se kor\u00e1lnatci rozmno\u017euj\u00ed?Kor\u00e1lnatci se rozmno\u017euj\u00ed jak nepohlavn\u00edm tak pohlavn\u00edm zp\u016fsobem. To nepohlavn\u00ed je umo\u017en\u011bno pu\u010den\u00edm, co\u017e znamen\u00e1, \u017ee se odd\u011bl\u00ed mal\u00fd v\u00fdr\u016fstek, kter\u00fd doroste v\u00a0nov\u00e9ho jedince. Pohlavn\u00ed rozmno\u017eov\u00e1n\u00ed je vizu\u00e1ln\u011b n\u00e1dhern\u00e9 p\u0159edstaven\u00ed. V\u011bt\u0161ina kor\u00e1l\u016f se rozmno\u017euje b\u011bhem t\u00fddne po \u00fapl\u0148ku. Hromadn\u011b vypou\u0161t\u00ed do vody ohromn\u00e9 mno\u017estv\u00ed vaj\u00ed\u010dek a spermi\u00ed. Z\u00a0oplodn\u011bn\u00fdch vaj\u00ed\u010dek vzniknou drobou\u010dk\u00e9 larvi\u010dky, kter\u00e9 se stanou pro ur\u010dit\u00fd \u010das sou\u010d\u00e1st\u00ed planktonu. Pak si najdou m\u00edsto k\u00a0\u017eivotu, kde se usad\u00ed. Tyto larvi\u010dky jsou nesm\u00edrn\u011b citliv\u00e9 na kvalitu a teploty vodu, jen drobn\u00e9 zm\u011bny podm\u00ednek je mohou zahubit.                                                                                                                                                                                                                                                                                                                                                                                        4\/5 - (5 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jsou kor\u00e1li \u017eivo\u010dichov\u00e9 \u010di podivn\u00e9 rostliny?","item":"https:\/\/www.jmtcz.cz\/jsou-korali-zivocichove-ci-podivne-rostliny\/#breadcrumbitem"}]}]