{"id":156098,"date":"2026-01-04T05:07:15","date_gmt":"2026-01-04T05:07:15","guid":{"rendered":"https:\/\/friss-hirek.hu\/index.php\/rendszerszintu-okologiai-kockazat-tunetei-a-balatoni-halpusztulasok\/friss-hirek\/"},"modified":"2026-01-04T05:07:15","modified_gmt":"2026-01-04T05:07:15","slug":"rendszerszintu-okologiai-kockazat-tunetei-a-balatoni-halpusztulasok","status":"publish","type":"post","link":"https:\/\/friss-hirek.hu\/index.php\/rendszerszintu-okologiai-kockazat-tunetei-a-balatoni-halpusztulasok\/videk\/","title":{"rendered":"Rendszerszint\u0171 \u00f6kol\u00f3giai kock\u00e1zat t\u00fcnetei a balatoni halpusztul\u00e1sok"},"content":{"rendered":"<p>A t\u00e9l be\u00e1llt\u00e1val ism\u00e9t el\u0151t\u00e9rbe ker\u00fcltek a Balaton d\u00e9li partj\u00e1n, az egyes kik\u00f6t\u0151k t\u00e9rs\u00e9g\u00e9ben tapasztalhat\u00f3 t\u00e9li halpusztul\u00e1sok. A <a href=\"https:\/\/www.blki.hun-ren.hu\/node\/15806\" target=\"_blank\" rel=\"noopener\">HUN-REN Balatoni Limnol\u00f3giai Kutat\u00f3int\u00e9zet \u00e1ll\u00e1sfoglal\u00e1s\u00e1ban <\/a>azt hangs\u00falyozza, hogy az egyedi esetek m\u00f6g\u00f6tt nem elszigetelt, helyi probl\u00e9m\u00e1k, hanem egy \u00f6sszetett, rendszerszint\u0171 jelens\u00e9g \u00e1ll, amely a kl\u00edmav\u00e1ltoz\u00e1s \u00e9s az elm\u00falt \u00e9vek intenz\u00edv partmenti be\u00e9p\u00edt\u00e9seinek egy\u00fcttes k\u00f6vetkezm\u00e9nye.<\/p><div id=\"friss-1716250848\" class=\"friss-etarget friss-entity-placement\"><script type=\"text\/javascript\" id=\"etargetScript7a9b589f63cb072bef80df221f46a22b\">function etargetPostloadFunction7a9b589f63cb072bef80df221f46a22b(){var e=\"etargetPostload7a9b589f63cb072bef80df221f46a22b\",t=\"etargetScript7a9b589f63cb072bef80df221f46a22b\",o=document.getElementById(e);if(o){for(var n=o.offsetTop,d=o.offsetLeft,r=o.offsetWidth,a=o.offsetHeight;o.offsetParent;)o=o.offsetParent,n+=o.offsetTop,d+=o.offsetLeft;var i=(n<=window.pageYOffset+window.innerHeight&&d<window.pageXOffset+window.innerWidth&&n+a>window.pageYOffset&&d+r>window.pageXOffset);if(i&&etargetAllowOtherCheck){allowed=!1;var c=document.createElement(\"script\");return c.src=\"\/\/hu.search.etargetnet.com\/generic\/uni.php?g=ref:58661,area:700x210\",void(document.getElementById(t)&&document.getElementById(e)&&(document.getElementById(t).parentNode.appendChild(c),document.getElementById(t).parentNode.removeChild(document.getElementById(t)),document.getElementById(e).parentNode.removeChild(document.getElementById(e)),document.removeEventListener(\"scroll\",etargetPostloadFunction7a9b589f63cb072bef80df221f46a22b),document.removeEventListener(\"resize\",etargetPostloadFunction7a9b589f63cb072bef80df221f46a22b),document.removeEventListener(\"DOMContentLoaded\",etargetPostloadFunction7a9b589f63cb072bef80df221f46a22b)))}}}var etargetDivID=\"etargetPostload7a9b589f63cb072bef80df221f46a22b\",etargetScriptID=\"etargetScript7a9b589f63cb072bef80df221f46a22b\",etargetPostloadPoint=document.createElement(\"div\");etargetPostloadPoint.id=etargetDivID;var etargetCurScript=document.getElementById(etargetScriptID);etargetCurScript.parentNode.appendChild(etargetPostloadPoint),document.addEventListener(\"scroll\",etargetPostloadFunction7a9b589f63cb072bef80df221f46a22b),document.addEventListener(\"resize\",etargetPostloadFunction7a9b589f63cb072bef80df221f46a22b),document.addEventListener(\"DOMContentLoaded\",etargetPostloadFunction7a9b589f63cb072bef80df221f46a22b);var etargetAllowOtherCheck=!0;if(typeof(\"forceRunPostload\")==\"string\"){etargetPostloadFunction7a9b589f63cb072bef80df221f46a22b()}<\/script><\/div>\n<h2>Nem egyedi kik\u00f6t\u0151probl\u00e9ma<\/h2>\n<p>A jelens\u00e9g nem k\u00f6thet\u0151 kiz\u00e1r\u00f3lag egyetlen kik\u00f6t\u0151h\u00f6z vagy beruh\u00e1z\u00e1shoz. A Balaton d\u00e9li partj\u00e1n l\u00e9tes\u00edtett, b\u0151v\u00edtett vagy \u00e1talak\u00edtott kik\u00f6t\u0151k eset\u00e9ben hasonl\u00f3 \u00f6kol\u00f3giai kock\u00e1zatok rajzol\u00f3dnak ki, k\u00fcl\u00f6n\u00f6sen ott, ahol nagy kiterjed\u00e9s\u0171, m\u00e9ly\u00edtett \u00e9s er\u0151sen v\u00e9dett \u00f6bl\u00f6zetek j\u00f6ttek l\u00e9tre.<\/p>\n<h2>Kl\u00edmav\u00e1ltoz\u00e1s \u00e9s t\u00e9li viszonyok \u00e1talakul\u00e1sa<\/h2>\n<p>A kl\u00edmav\u00e1ltoz\u00e1s k\u00f6vetkezt\u00e9ben a Balaton telei egyre gyakrabban j\u00e9gmentesek, mik\u00f6zben a t\u00f3 tov\u00e1bbra is sz\u00e9lnek kitett, sek\u00e9ly v\u00edztest marad. Ennek k\u00f6vetkezt\u00e9ben a ny\u00edlt v\u00edzen t\u00e9li id\u0151szakban is er\u0151s hull\u00e1mz\u00e1s \u00e9s folyamatos v\u00edzmozg\u00e1s jellemz\u0151. A t\u00e9len alig t\u00e1pl\u00e1lkoz\u00f3 halak sz\u00e1m\u00e1ra viszont a hull\u00e1mz\u00f3 v\u00edz lek\u00fczd\u00e9se jelent\u0151s energia veszt\u00e9st jelent, \u00edgy a j\u00e9gmentes id\u0151szakokban hull\u00e1mz\u00e1st\u00f3l v\u00e9dett ter\u00fcleteket keresnek.<\/p>\n<p>Ezzel p\u00e1rhuzamosan a d\u00e9li parton kialak\u00edtott, nagy kiterjed\u00e9s\u0171, m\u00e9ly\u00edtett \u00e9s er\u0151sen v\u00e9dett kik\u00f6t\u0151medenc\u00e9k a t\u00e9li id\u0151szakban mened\u00e9kk\u00e9nt (vermel\u0151helyk\u00e9nt) funkcion\u00e1lnak a halak sz\u00e1m\u00e1ra. A halak t\u00f6megesen h\u00faz\u00f3dnak ezekbe a nyugodtabb \u00f6bl\u00f6zetekbe, ahol azonban a v\u00edzcsere korl\u00e1tozott, a v\u00edzt\u00f6meg r\u00e9szben elszigetel\u0151dik.<\/p>\n<h2>Oxig\u00e9nhi\u00e1nyos \u00e1llapot kialakul\u00e1s\u00e1nak kock\u00e1zata<\/h2>\n<p>A v\u00e9dett, gyenge \u00e1tkevered\u00e9s\u0171 kik\u00f6t\u0151medenc\u00e9kben a halak nagy s\u0171r\u0171s\u00e9ge, az \u00fcled\u00e9k oxig\u00e9nfogyaszt\u00e1sa \u00e9s az alg\u00e1k alacsony t\u00e9li oxig\u00e9ntermel\u00e9se egy\u00fcttesen akut oxig\u00e9nhi\u00e1nyos \u00e1llapotot id\u00e9zhet el\u0151. Ilyen k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt r\u00f6vid id\u0151 alatt t\u00f6meges halpusztul\u00e1s alakulhat ki, ak\u00e1r k\u00fcls\u0151 terhel\u00e9s, zavar\u00f3 hat\u00e1s n\u00e9lk\u00fcl is.<\/p>\n<h2>\u00c9szaki \u00e9s d\u00e9li part k\u00f6z\u00f6tti k\u00fcl\u00f6nbs\u00e9gek<\/h2>\n<p>A Balaton \u00e9szaki partj\u00e1n a m\u00e9lyebb v\u00edz \u00e9s a part menti meder morfol\u00f3gia lehet\u0151v\u00e9 teszi az \u00fan. \u201e\u00e1tfoly\u00f3s\u201d kik\u00f6t\u0151k kialak\u00edt\u00e1s\u00e1t. A d\u00e9li part sek\u00e9ly v\u00edzviszonyai miatt azonban az ilyen megold\u00e1sok gyors \u00fcled\u00e9kfelhalmoz\u00f3d\u00e1shoz vezetn\u00e9nek, ez\u00e9rt ott jellemz\u0151en z\u00e1rt, m\u00e9ly\u00edtett medenc\u00e9k j\u00f6nnek l\u00e9tre, amelyek a halak szempontj\u00e1b\u00f3l el\u0151helyi csapdak\u00e9nt m\u0171k\u00f6dnek. Azon kev\u00e9s d\u00e9li parti kik\u00f6t\u0151, amely a jelent\u0151s betorkol\u00f3 v\u00edzfoly\u00e1s miatt hat\u00e9kony \u00e1t\u00f6bl\u00edt\u00e9ssel rendelkezik, p\u00e9ld\u00e1ul Balatonm\u00e1riaf\u00fcrd\u0151, szint\u00e9n mentes az oxig\u00e9nhi\u00e1ny \u00e9s az ehhez k\u00f6thet\u0151 halpusztul\u00e1si kock\u00e1zatokt\u00f3l.<\/p>\n<h2>\u0150shonos, kulcsfontoss\u00e1g\u00fa halfajok \u00e9rintettek<\/h2>\n<p>Kiemelten fontos hangs\u00falyozni, a jelens\u00e9g els\u0151sorban a Balaton \u0151shonos, biomassza szempontj\u00e1b\u00f3l legjelent\u0151sebb halfajait a keszegf\u00e9l\u00e9ket, \u00edgy a d\u00e9v\u00e9rkeszeget, karika keszeget \u00e9s bodork\u00e1t, a k\u00fcszt \u00e9s a s\u00fcll\u0151t \u00e9rinti, amelyek:<\/p>\n<ul>\n<li>a t\u00f3 t\u00e1pl\u00e1l\u00e9kh\u00e1l\u00f3zat\u00e1ban fontos szerepet t\u00f6ltenek be,<\/li>\n<li>kulcsszerep\u00fck van a balatoni \u00f6kosziszt\u00e9ma stabilit\u00e1s\u00e1ban,<\/li>\n<li>\u00e9s meghat\u00e1roz\u00f3ak a halgazd\u00e1lkod\u00e1s \u00e9s a horg\u00e1szat szempontj\u00e1b\u00f3l is.<\/li>\n<\/ul>\n<p>Ez\u00e9rt a probl\u00e9ma nem puszt\u00e1n halgazd\u00e1lkod\u00e1si k\u00e9rd\u00e9s, hanem a Balaton teljes \u00f6kol\u00f3giai m\u0171k\u00f6d\u00e9s\u00e9t \u00e9rint\u0151, kritikus kock\u00e1zat.<\/p>\n<h2>A k\u00e1r\u00f3katon\u00e1k szerep\u00e9nek \u00e9rtelmez\u00e9se<\/h2>\n<p>A Balatoni Limnol\u00f3giai Kutat\u00f3int\u00e9zet \u00e1ll\u00e1spontja szerint a k\u00e1r\u00f3katon\u00e1k jelenl\u00e9te nem az els\u0151dleges kiv\u00e1lt\u00f3 oka, hanem puszt\u00e1n er\u0151s\u00edt\u0151 t\u00e9nyez\u0151je lehet a kik\u00f6t\u0151i halpusztul\u00e1soknak. A k\u00e1r\u00f3katon\u00e1k t\u00f6megesen vad\u00e1szva tov\u00e1bbi t\u00f6m\u00f6r\u00fcl\u00e9sre k\u00e9sztetik az am\u00fagy is kritikus s\u0171r\u0171s\u00e9g\u0171 halt\u00f6meget. A beszorult, menek\u00fcl\u00e9si \u00fatvonalakkal nem rendelkez\u0151 halrajok \u00edgy a k\u00f6rnyezet\u00fckben m\u00e1r am\u00fagy is szeg\u00e9nyes oxig\u00e9nt teljesen fel\u00e9lve fokozottabban pusztulnak. Azonban a probl\u00e9m\u00e1ra tart\u00f3s megold\u00e1s\u00e1t m\u00e9gsem a k\u00e1r\u00f3katona riaszt\u00e1s\u00e1val vagy gy\u00e9r\u00edt\u00e9s\u00e9vel \u00e9rhet\u00fcnk el,\u00a0hanem a kik\u00f6t\u0151k \u00e1tj\u00e1rhat\u00f3s\u00e1g\u00e1nak \u00e9s v\u00edz\u00e1raml\u00e1s\u00e1nak jav\u00edt\u00e1s\u00e1val.<\/p>\n<h2>Nem a v\u00edzszint-ingadoz\u00e1s az ok<\/h2>\n<p>Fontos egy\u00e9rtelm\u0171en kimondani: a jelens\u00e9g nincs k\u00f6zvetlen \u00f6sszef\u00fcgg\u00e9sben a Balaton term\u00e9szetes v\u00edzszint-ingadoz\u00e1s\u00e1val. A probl\u00e9ma sokkal ink\u00e1bb a kl\u00edmav\u00e1ltoz\u00e1s (j\u00e9gmentes telek, megv\u00e1ltozott \u00e1raml\u00e1sok) \u00e9s az emberi partbe\u00e9p\u00edt\u00e9s (kik\u00f6t\u0151\u00e9p\u00edt\u00e9s) egy\u00fcttes hat\u00e1s\u00e1b\u00f3l rajzol\u00f3dik ki, \u00e9s ez\u00e9rt komolyan veend\u0151, hossz\u00fa t\u00e1v\u00fa kock\u00e1zatot jelent.<\/p>\n<h2>Kezel\u00e9si lehet\u0151s\u00e9gek \u00e9s korl\u00e1tok<\/h2>\n<p>A jelenleg alkalmazott beavatkoz\u00e1sok \u2013 p\u00e9ld\u00e1ul leveg\u0151ztet\u00e9s \u00e9s a k\u00e1r\u00f3katon\u00e1k riaszt\u00e1sa \u2013 t\u00fcneti kezel\u00e9snek tekinthet\u0151k, amelyek r\u00f6vid t\u00e1von m\u00e9rs\u00e9kelhetik a k\u00e1rokat, de nem oldj\u00e1k meg az alapvet\u0151 probl\u00e9m\u00e1t. A jelens\u00e9g kezel\u00e9se csak komplex, szakmailag megalapozott jelenkori v\u00edz\u00e9lettani szempontokat is figyelembe vev\u0151 kik\u00f6t\u0151 tervez\u00e9ssel lehets\u00e9ges, amely tekintettel van:<\/p>\n<ul>\n<li>a kl\u00edmav\u00e1ltoz\u00e1s hat\u00e1saira,<\/li>\n<li>a kik\u00f6t\u0151k geometriai \u00e9s hidraulikai saj\u00e1toss\u00e1gaira,<\/li>\n<li>a hal\u00e1llom\u00e1ny t\u00e9r- \u00e9s id\u0151beli viselked\u00e9s\u00e9re,<\/li>\n<li>valamint a Balaton eg\u00e9sz\u00e9nek m\u0171k\u00f6d\u00e9s\u00e9re.<\/li>\n<\/ul>\n<h2>\u00d6sszegz\u00e9s<\/h2>\n<p>A Balaton d\u00e9li partj\u00e1n tapasztalt halpusztul\u00e1sok nem elszigetelt esem\u00e9nyek, hanem egy komolyan veend\u0151, rendszerszint\u0171 \u00f6kol\u00f3giai kock\u00e1zat t\u00fcnetei. A jelens\u00e9g t\u00falmutat egy-egy kik\u00f6t\u0151n vagy helysz\u00ednen, \u00e9s a Balaton j\u00f6v\u0151beli m\u0171k\u00f6d\u00e9se szempontj\u00e1b\u00f3l kritikus k\u00e9rd\u00e9st vet fel.<\/p>\n<p>A HUN-REN Balatoni Limnol\u00f3giai Kutat\u00f3int\u00e9zet\u00a0c\u00e9lja, hogy a jelens\u00e9gr\u0151l higgadt, t\u00e9nyeken alapul\u00f3, tudom\u00e1nyosan megalapozott t\u00e1j\u00e9koztat\u00e1st adjon, valamint el\u0151seg\u00edtse \u00e9s partner legyen a hossz\u00fa t\u00e1von is fenntarthat\u00f3 megold\u00e1sok kialak\u00edt\u00e1s\u00e1ban.<\/p>\n<p>A Balatoni Limnol\u00f3giai Kutat\u00f3int\u00e9zet szerint a <a href=\"https:\/\/sokszinuvidek.24.hu\/viragzo-videkunk\/2025\/10\/07\/balaton-alacsony-vizszint-to-kiszaradasa-nem-veszely\/\" target=\"_blank\" rel=\"noopener\">Balaton alacsony v\u00edzszintje<\/a> nem a t\u00f3 kisz\u00e1rad\u00e1s\u00e1t vet\u00edti el\u0151re. Meg\u00e1llap\u00edtott\u00e1k, hogy <a href=\"https:\/\/sokszinuvidek.24.hu\/viragzo-videkunk\/2023\/07\/15\/gyakoribb-algaviragzas-magyar-tavak-blki\/\" target=\"_blank\" rel=\"noopener\">egyre t\u00f6bbsz\u00f6r lehet algavir\u00e1gz\u00e1sra sz\u00e1m\u00edtani<\/a> a magyar tengeren, els\u0151sorban a kl\u00edmav\u00e1ltoz\u00e1s miatt.<\/p>\n<div class=\"o-post__articRecommend m-articRecommend -hasImg cf article-recommendation-container cf _ce_measure_widget\" data-ce-measure-widget=\"Cikkaj\u00e1nl\u00f3 widget\">\n<div class=\"m-articRecommend__widgetTitle\">Kapcsol\u00f3d\u00f3<\/div>\n<div class=\"m-articRecommend__imgWrap image-container\"><a href=\"https:\/\/sokszinuvidek.24.hu\/viragzo-videkunk\/2024\/10\/03\/egyre-sosabba-valik-balaton\/\" target=\"_self\"><img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"270\" src=\"https:\/\/s.24.hu\/app\/uploads\/sites\/11\/2024\/10\/lake-balaton-689572_1280-e1723625718283-480x270.jpg\" class=\"img-responsive wp-post-image\" alt=\"\" \/><\/a><\/div>\n<div class=\"m-articRecommend__cntWrap content-container \">\n\t\t\t<a href=\"https:\/\/sokszinuvidek.24.hu\/viragzo-videkunk\/2024\/10\/03\/egyre-sosabba-valik-balaton\/\" target=\"_self\" class=\"m-articRecommend__title ar-title\">Egyre s\u00f3sabb\u00e1 v\u00e1lik a Balaton<\/a>\n<div class=\"m-articRecommend__lead ar-lead\">El\u0151bb-ut\u00f3bb t\u00e9nyleg r\u00e1szolg\u00e1l a magyar tenger elnevez\u00e9sre?<\/div>\n<\/div>\n<\/div>\n<p>The post <a href=\"https:\/\/sokszinuvidek.24.hu\/mozaik\/2026\/01\/04\/balatoni-halpusztulasok-okologiai-kockazat\/\" target=\"_blank\">Rendszerszint\u0171 \u00f6kol\u00f3giai kock\u00e1zat t\u00fcnetei a balatoni halpusztul\u00e1sok<\/a> first appeared on <a href=\"https:\/\/sokszinuvidek.24.hu\/\" target=\"_blank\">Soksz\u00edn\u0171 vid\u00e9k<\/a>.<\/p><div id=\"friss-3448125476\" class=\"friss-etarget-cikk-vege friss-entity-placement\"><script type=\"text\/javascript\" 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