{"id":14486,"date":"2026-10-03T16:41:06","date_gmt":"2026-10-03T16:41:06","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=14486"},"modified":"2026-10-03T16:41:06","modified_gmt":"2026-10-03T16:41:06","slug":"ocean-acidification-permian-extinction-event","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/earth-science\/ocean-acidification-permian-extinction-event\/","title":{"rendered":"Permsk\u00e1 vym\u00edrac\u00ed ud\u00e1lost: Kyselost oce\u00e1n\u016f jako kl\u00ed\u010dov\u00fd vin\u00edk"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Permsk\u00e1 vyhynut\u00ed: Kyselost oce\u00e1n\u016f jako kl\u00ed\u010dov\u00fd faktor<\/h2>\n\n<h2 class=\"wp-block-heading\">Co zp\u016fsobilo permsk\u00e9 vyhynut\u00ed?<\/h2>\n\n<p class=\"wp-block-paragraph\">Permsk\u00e9 vyhynut\u00ed, ke kter\u00e9mu do\u0161lo p\u0159ed 252\u00a0miliony let, bylo nejz\u00e1va\u017en\u011bj\u0161\u00ed hromadn\u00e9 vym\u0159en\u00ed v historii Zem\u011b, b\u011bhem n\u011bj\u017e bylo vyhlazeno v\u00edce ne\u017e 90\u202f% druh\u016f. P\u0159esn\u00e1 p\u0159\u00ed\u010dina t\u00e9to katastrofy z\u016fst\u00e1vala nejist\u00e1, ale nov\u00fd v\u00fdzkum nazna\u010duje, \u017ee kl\u00ed\u010dovou roli sehr\u00e1la kyselost oce\u00e1n\u016f.<\/p>\n\n<h2 class=\"wp-block-heading\">D\u016fkazy z\u00a0prastar\u00fdch hornin<\/h2>\n\n<p class=\"wp-block-paragraph\">V\u011bdci z\u00edskali horniny ze dna oce\u00e1nu, kter\u00e9 jsou star\u00e9 n\u011bkolik set milion\u016f let. Anal\u00fdzou izotop\u016f boru v\u00a0t\u011bchto hornin\u00e1ch dok\u00e1zali rekonstruovat \u00farove\u0148 kyselosti oce\u00e1n\u016f v\u202fminulosti. Jejich v\u00fdsledky ukazuj\u00ed, \u017ee b\u011bhem permsk\u00e9ho vyhynut\u00ed byly oce\u00e1ny nebezpe\u010dn\u011b kysel\u00e9.<\/p>\n\n<h2 class=\"wp-block-heading\">Sope\u010dn\u00e9 erupce a oxid uhli\u010dit\u00fd<\/h2>\n\n<p class=\"wp-block-paragraph\">V\u00fdzkumn\u00edci se domn\u00edvaj\u00ed, \u017ee kyselost oce\u00e1n\u016f byla zp\u016fsobena masivn\u00edmi sope\u010dn\u00fdmi erupcemi na Sibi\u0159i. Tyto erupce vyvrhly obrovsk\u00e9 mno\u017estv\u00ed oxidu uhli\u010dit\u00e9ho do atmosf\u00e9ry, kter\u00fd se rozplynul v\u00a0oce\u00e1nech a vytvo\u0159il kyselinu uhli\u010ditou.<\/p>\n\n<h2 class=\"wp-block-heading\">D\u016fsledky pro modern\u00ed oce\u00e1ny<\/h2>\n\n<p class=\"wp-block-paragraph\">Zji\u0161t\u011bn\u00ed maj\u00ed d\u016fle\u017eit\u00e9 implikace pro dne\u0161n\u00ed oce\u00e1ny. Modern\u00ed oce\u00e1nsk\u00e1 kyselost, vyvolan\u00e1 absorpc\u00ed oxidu uhli\u010dit\u00e9ho z\u00a0\u010dinnosti \u010dlov\u011bka, ji\u017e nyn\u00ed negativn\u011b ovliv\u0148uje mo\u0159sk\u00fd \u017eivot. N\u011bkte\u0159\u00ed v\u011bdci tvrd\u00ed, \u017ee se pr\u00e1v\u011b nach\u00e1z\u00edme uprost\u0159ed \u0161est\u00e9 hromadn\u00e9 vyhynut\u00ed, kter\u00e1 zasahuje jak suchozemsk\u00e1, tak mo\u0159sk\u00e1 zv\u00ed\u0159ata.<\/p>\n\n<h2 class=\"wp-block-heading\">Rychlost uvol\u0148ov\u00e1n\u00ed uhl\u00edku<\/h2>\n\n<p class=\"wp-block-paragraph\">Rychlost, jakou se oxid uhli\u010dit\u00fd uvol\u0148uje do atmosf\u00e9ry, je kl\u00ed\u010dov\u00fdm faktorem oce\u00e1nsk\u00e9 kyselosti. Permsk\u00e9 vyhynut\u00ed bylo spu\u0161t\u011bno rychl\u00fdm uvoln\u011bn\u00edm oxidu uhli\u010dit\u00e9ho, podobn\u011b jako sou\u010dasn\u00e1 rychlost emis\u00ed z\u202ffosiln\u00edch paliv.<\/p>\n\n<h2 class=\"wp-block-heading\">Dopady na mo\u0159sk\u00e9 \u017eivo\u010dichy<\/h2>\n\n<p class=\"wp-block-paragraph\">Kyselost oce\u00e1n\u016f m\u016f\u017ee m\u00edt v\u00e1\u017en\u00e9 n\u00e1sledky pro mo\u0159sk\u00e1 zv\u00ed\u0159ata. Po\u0161kozuje jejich sko\u0159\u00e1pky a kostry, co\u017e je \u010din\u00ed zraniteln\u011bj\u0161\u00edmi v\u016f\u010di pred\u00e1tor\u016fm a nemocem. M\u016f\u017ee tak\u00e9 naru\u0161ovat jejich reproduk\u010dn\u00ed cykly a schopnost nach\u00e1zet potravu.<\/p>\n\n<h2 class=\"wp-block-heading\">P\u0159\u00edklady zasa\u017een\u00fdch druh\u016f<\/h2>\n\n<p class=\"wp-block-paragraph\">Mezi druhy zvl\u00e1\u0161t\u011b citliv\u00e9 na oce\u00e1nskou kyselost pat\u0159\u00ed mo\u0159sk\u00e9 \u0161neky, \u00fast\u0159ice a kor\u00e1ly. Tito \u017eivo\u010dichov\u00e9 se spol\u00e9haj\u00ed na sv\u00e9 sko\u0159\u00e1pky nebo kostry jako na ochranu a oporu. Jak oce\u00e1ny zraj\u00ed, jejich sko\u0159\u00e1pky a kostry oslabnou a budou sn\u00e1ze po\u0161kozeny.<\/p>\n\n<h2 class=\"wp-block-heading\">Prevence budouc\u00edho vyhynut\u00ed<\/h2>\n\n<p class=\"wp-block-paragraph\">Abychom p\u0159ede\u0161li dal\u0161\u00edmu hromadn\u00e9mu vyhynut\u00ed, je nezbytn\u00e9 sn\u00ed\u017eit na\u0161e emise oxidu uhli\u010dit\u00e9ho. To lze dos\u00e1hnout p\u0159echodem na obnoviteln\u00e9 zdroje energie, zvy\u0161ov\u00e1n\u00edm energetick\u00e9 \u00fa\u010dinnosti a v\u00fdsadbou strom\u016f. Pokud podnikneme kroky ji\u017e nyn\u00ed, pom\u016f\u017eeme chr\u00e1nit oce\u00e1ny a druhy, kter\u00e9 na nich z\u00e1vis\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>Permsk\u00e1 vyhynut\u00ed: Kyselost oce\u00e1n\u016f jako kl\u00ed\u010dov\u00fd faktor Co zp\u016fsobilo permsk\u00e9 vyhynut\u00ed? Permsk\u00e9 vyhynut\u00ed, ke kter\u00e9mu do\u0161lo p\u0159ed 252\u00a0miliony let, bylo nejz\u00e1va\u017en\u011bj\u0161\u00ed hromadn\u00e9 vym\u0159en\u00ed v historii Zem\u011b, b\u011bhem n\u011bj\u017e bylo vyhlazeno&hellip;<\/p>\n","protected":false},"author":2,"featured_media":25613,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[212],"tags":[561,3398,19449,7435,572,342,34],"class_list":["post-14486","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-earth-science","tag-mass-extinction","tag-ocean-acidification","tag-permian-extinction-event","tag-volcanic-eruptions","tag-earth-science","tag-life-science","tag-climate-change"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=14486"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14486\/revisions"}],"predecessor-version":[{"id":25614,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14486\/revisions\/25614"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/25613"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=14486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=14486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=14486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}