{"id":14486,"date":"2026-10-03T16:41:08","date_gmt":"2026-10-03T16:41:08","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=14486"},"modified":"2026-10-03T16:41:08","modified_gmt":"2026-10-03T16:41:08","slug":"ocean-acidification-permian-extinction-event","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/hu\/science\/earth-science\/ocean-acidification-permian-extinction-event\/","title":{"rendered":"Permi\u00e1nus kihal\u00e1s: Az \u00f3ce\u00e1nok savasod\u00e1sa a m\u00falt \u00e9s a jelen kulcsa"},"content":{"rendered":"<h2 class=\"wp-block-heading\">A permiai kihal\u00e1si esem\u00e9ny: az \u00f3ce\u00e1ni savasod\u00e1s mint kulcsfontoss\u00e1g\u00fa ok<\/h2>\n\n<h2 class=\"wp-block-heading\">Mi okozta a permiai kihal\u00e1si esem\u00e9nyt?<\/h2>\n\n<p class=\"wp-block-paragraph\">A permiai kihal\u00e1si esem\u00e9ny, amely 252\u202fmilli\u00f3 \u00e9vvel ezel\u0151tt t\u00f6rt\u00e9nt, a F\u00f6ld t\u00f6rt\u00e9nelm\u00e9nek legpuszt\u00edt\u00f3bb t\u00f6meges kihal\u00e1sa volt, t\u00f6bb mint\u202f90\u202f%-a elt\u0171nt a fajoknak. Ennek a katasztr\u00f3f\u00e1nak a pontos oka eddig bizonytalan maradt, de az \u00faj kutat\u00e1sok szerint az \u00f3ce\u00e1ni savasod\u00e1s jelent\u0151s szerepet j\u00e1tszott.<\/p>\n\n<h2 class=\"wp-block-heading\">Bizony\u00edt\u00e9kok \u0151si k\u0151zetekb\u0151l<\/h2>\n\n<p class=\"wp-block-paragraph\">A tud\u00f3sok olyan \u00f3ce\u00e1nfen\u00e9kb\u0151l sz\u00e1rmaz\u00f3 k\u0151zeteket gy\u0171jt\u00f6ttek, amelyek t\u00f6bb sz\u00e1z milli\u00f3 \u00e9vre ny\u00falnak vissza. A k\u0151zetekben tal\u00e1lhat\u00f3 b\u00f3r izot\u00f3pok elemz\u00e9s\u00e9vel rekonstru\u00e1lt\u00e1k a m\u00falt \u00f3ce\u00e1ni savas szintj\u00e9t. Eredm\u00e9nyeik azt mutatj\u00e1k, hogy a permiai kihal\u00e1si esem\u00e9ny idej\u00e9n az \u00f3ce\u00e1nok vesz\u00e9lyesen savasak voltak.<\/p>\n\n<h2 class=\"wp-block-heading\">Vulk\u00e1nkit\u00f6r\u00e9sek \u00e9s sz\u00e9n-dioxid<\/h2>\n\n<p class=\"wp-block-paragraph\">A kutat\u00f3k \u00fagy v\u00e9lik, hogy az \u00f3ce\u00e1nok savasod\u00e1s\u00e1t a szib\u00e9riai hatalmas vulk\u00e1nkit\u00f6r\u00e9sek okozt\u00e1k. Ezek a kit\u00f6r\u00e9sek \u00f3ri\u00e1si mennyis\u00e9g\u0171 sz\u00e9n-dioxidot dobtak a l\u00e9gk\u00f6rbe, amely felold\u00f3dott az \u00f3ce\u00e1nokban \u00e9s sz\u00e9nsavat k\u00e9pezett.<\/p>\n\n<h2 class=\"wp-block-heading\">K\u00f6vetkezm\u00e9nyek a mai \u00f3ce\u00e1nokra<\/h2>\n\n<p class=\"wp-block-paragraph\">Az eredm\u00e9nyek fontos k\u00f6vetkezm\u00e9nyekkel b\u00edrnak a jelenlegi \u00f3ce\u00e1njainkra n\u00e9zve. A modern \u00f3ce\u00e1ni savasod\u00e1st \u2013 amelyet az emberi tev\u00e9kenys\u00e9gb\u0151l sz\u00e1rmaz\u00f3 sz\u00e9n-dioxid elnyel\u00e9se okoz \u2013 m\u00e1r most is negat\u00edvan befoly\u00e1solja a tengeri \u00e9l\u0151vil\u00e1got. Egyes tud\u00f3sok azt \u00e1ll\u00edtj\u00e1k, hogy jelenleg a hatodik t\u00f6meges kihal\u00e1si esem\u00e9ny k\u00f6zep\u00e9n vagyunk, amely a sz\u00e1razf\u00f6ldi \u00e9s tengeri \u00e1llatokat egyar\u00e1nt \u00e9rinti.<\/p>\n\n<h2 class=\"wp-block-heading\">A sz\u00e9n-dioxid kibocs\u00e1t\u00e1s sebess\u00e9ge<\/h2>\n\n<p class=\"wp-block-paragraph\">Az a sebess\u00e9g, ahogy a sz\u00e9n-dioxid a l\u00e9gk\u00f6rbe ker\u00fcl, kritikus t\u00e9nyez\u0151 az \u00f3ce\u00e1ni savasod\u00e1sban. A permiai kihal\u00e1si esem\u00e9nyt egy gyors sz\u00e9n-dioxid kibocs\u00e1t\u00e1s ind\u00edtotta el, amely hasonl\u00f3 a fosszilis t\u00fczel\u0151anyagokb\u00f3l sz\u00e1rmaz\u00f3 modern kibocs\u00e1t\u00e1sok \u00fctem\u00e9hez.<\/p>\n\n<h2 class=\"wp-block-heading\">Hat\u00e1sok a tengeri \u00e9l\u0151l\u00e9nyekre<\/h2>\n\n<p class=\"wp-block-paragraph\">Az \u00f3ce\u00e1ni savasod\u00e1s s\u00falyos k\u00f6vetkezm\u00e9nyekkel j\u00e1rhat a tengeri \u00e1llatokra. Megk\u00e1ros\u00edthatja a kagyl\u00f3kat \u00e9s csontv\u00e1zakat, ami miatt sebezhet\u0151bb\u00e9 v\u00e1lnak a ragadoz\u00f3k \u00e9s a betegs\u00e9gek ellen. Emellett megzavarhatja a szaporod\u00e1si ciklusukat \u00e9s az \u00e9lelem megtal\u00e1l\u00e1s\u00e1nak k\u00e9pess\u00e9g\u00fcket.<\/p>\n\n<h2 class=\"wp-block-heading\">\u00c9rintett fajok p\u00e9ld\u00e1i<\/h2>\n\n<p class=\"wp-block-paragraph\">Azok a fajok, amelyek k\u00fcl\u00f6n\u00f6sen sebezhet\u0151ek az \u00f3ce\u00e1ni savasod\u00e1sra, t\u00f6bbek k\u00f6z\u00f6tt a tengerh\u00f3lyagok, osztr\u00e1kok \u00e9s a korallok. Ezek az \u00e1llatok a v\u00e9delm\u00fck \u00e9s a szerkezet\u00fck \u00e9rdek\u00e9ben a kagyl\u00f3ikra vagy csontv\u00e1zaikra t\u00e1maszkodnak. Ahogy az \u00f3ce\u00e1nok egyre savasabb\u00e1 v\u00e1lnak, kagyl\u00f3ik \u00e9s csontv\u00e1zaik gyeng\u00e9bb\u00e9 \u00e9s k\u00f6nnyebben s\u00e9r\u00fcl\u00e9kenny\u00e9 v\u00e1lnak.<\/p>\n\n<h2 class=\"wp-block-heading\">A j\u00f6v\u0151beli kihal\u00e1s megel\u0151z\u00e9se<\/h2>\n\n<p class=\"wp-block-paragraph\">A j\u00f6v\u0151beli t\u00f6meges kihal\u00e1si esem\u00e9ny megel\u0151z\u00e9se \u00e9rdek\u00e9ben elengedhetetlen a sz\u00e9n-dioxid kibocs\u00e1t\u00e1sunk cs\u00f6kkent\u00e9se. Ez megval\u00f3s\u00edthat\u00f3 a meg\u00fajul\u00f3 energiaforr\u00e1sokra val\u00f3 \u00e1t\u00e1ll\u00e1ssal, az energiahat\u00e9konys\u00e1g jav\u00edt\u00e1s\u00e1val \u00e9s a f\u00e1k \u00fcltet\u00e9s\u00e9vel. Cselekv\u00e9s\u00fcnk most seg\u00edthet megv\u00e9deni \u00f3ce\u00e1njainkat \u00e9s az azokon \u00e9l\u0151 fajokat.<\/p>","protected":false},"excerpt":{"rendered":"<p>A permiai kihal\u00e1si esem\u00e9ny: az \u00f3ce\u00e1ni savasod\u00e1s mint kulcsfontoss\u00e1g\u00fa ok Mi okozta a permiai kihal\u00e1si esem\u00e9nyt? A permiai kihal\u00e1si esem\u00e9ny, amely 252\u202fmilli\u00f3 \u00e9vvel ezel\u0151tt t\u00f6rt\u00e9nt, a F\u00f6ld t\u00f6rt\u00e9nelm\u00e9nek legpuszt\u00edt\u00f3bb t\u00f6meges&hellip;<\/p>\n","protected":false},"author":2,"featured_media":25609,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[212],"tags":[34,342,572,3398,19449,561,7435],"class_list":["post-14486","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-earth-science","tag-climate-change","tag-life-science","tag-earth-science","tag-ocean-acidification","tag-permian-extinction-event","tag-mass-extinction","tag-volcanic-eruptions"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/14486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/comments?post=14486"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/14486\/revisions"}],"predecessor-version":[{"id":25610,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/14486\/revisions\/25610"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media\/25609"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media?parent=14486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/categories?post=14486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/tags?post=14486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}