{"id":56857,"date":"2026-02-11T11:18:06","date_gmt":"2026-02-11T11:18:06","guid":{"rendered":"https:\/\/matis.is\/?p=56857"},"modified":"2026-02-11T11:18:08","modified_gmt":"2026-02-11T11:18:08","slug":"nidurstodur-erfdarannsokna-matis-a-loxum-i-laxa-i-adaldal-vekja-athygli","status":"publish","type":"post","link":"https:\/\/matis.is\/en\/frettir\/nidurstodur-erfdarannsokna-matis-a-loxum-i-laxa-i-adaldal-vekja-athygli\/","title":{"rendered":"Ni\u00f0urst\u00f6\u00f0ur erf\u00f0aranns\u00f3kna Mat\u00eds \u00e1 l\u00f6xum \u00ed Lax\u00e1 \u00ed A\u00f0aldal vekja athygli"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Mat\u00eds hefur birt \u00ed heild sinni sk\u00fdrsluna <em>Genetic diversity of salmon in Lax\u00e1 in A\u00f0aldal<\/em>, a\u00f0 fengnu leyfi Landsvirkjunar sem var kaupandi verkefnisins. Sk\u00fdrslan var unnin af erf\u00f0ateymi Mat\u00eds og dagsett 27. mars 2024. Birtingin kemur \u00ed kj\u00f6lfar umfj\u00f6llunar \u00ed fj\u00f6lmi\u00f0lum \u00fear sem ni\u00f0urst\u00f6\u00f0ur sk\u00fdrslunnar voru gagnr\u00fdndar. Af \u00fev\u00ed tilefni vill Mat\u00eds \u00e1r\u00e9tta a\u00f0 fyrirt\u00e6ki\u00f0 stendur vi\u00f0 sk\u00fdrsluna, a\u00f0fer\u00f0afr\u00e6\u00f0i hennar og ni\u00f0urst\u00f6\u00f0ur.<\/h4>\n\n\n\n<p>Markmi\u00f0 ranns\u00f3knarinnar var a\u00f0 greina breytingar \u00e1 erf\u00f0asamsetningu laxa \u00ed Lax\u00e1 \u00ed A\u00f0aldal yfir t\u00edma og svara \u00feremur lykilspurningum um arfblendni, sams\u00e6tufj\u00f6lbreytni og virka stofnst\u00e6r\u00f0. Rakning einstaklinga \u00far vei\u00f0is\u00fdnum fr\u00e1 1980, 2022 og 2023 til 26 laxastofna v\u00ed\u00f0s vegar um landi\u00f0 s\u00fdnir a\u00f0 breytingar hafa or\u00f0i\u00f0 \u00e1 stofnger\u00f0 \u00ed \u00e1nni. Hlutfall laxa sem rekja m\u00e1 til Lax\u00e1r hefur l\u00e6kka\u00f0 \u00far 70,3% \u00e1ri\u00f0 1980 \u00ed 25,5% \u00e1ri\u00f0 2023, \u00e1 me\u00f0an hlutfall laxa sem rekja m\u00e1 til annarra \u00e1a hefur aukist.<\/p>\n\n\n\n<p>Ranns\u00f3knin byggir \u00e1 al\u00fej\u00f3\u00f0lega vi\u00f0urkenndum a\u00f0fer\u00f0um \u00ed stofnerf\u00f0afr\u00e6\u00f0i og notkun gagnagrunnsins ONCOR til upprunarakningar. Samkv\u00e6mt s\u00e9rfr\u00e6\u00f0ingum Mat\u00eds er erf\u00f0amunur milli \u00edslenskra laxastofna almennt meiri en v\u00ed\u00f0a annars sta\u00f0ar \u00ed Evr\u00f3pu, sem styrkir forsendur a\u00f0fer\u00f0afr\u00e6\u00f0innar vi\u00f0 rakningu til einstakra \u00e1a.<\/p>\n\n\n\n<p>Ni\u00f0urst\u00f6\u00f0urnar vekja upp mikilv\u00e6gar spurningar um \u00fer\u00f3un og uppruna laxastofnsins \u00ed Lax\u00e1 \u00ed A\u00f0aldal. Mat\u00eds telur mikilv\u00e6gt a\u00f0 ranns\u00f3knir af \u00feessu tagi s\u00e9u r\u00e6ddar \u00e1 faglegum grunni og a\u00f0 frekari ranns\u00f3knir fari fram til a\u00f0 auka \u00feekkingu \u00e1 erf\u00f0abreytileika og \u00fer\u00f3un \u00edslenskra laxastofna.<\/p>\n\n\n\n<p><a href=\"https:\/\/matis.is\/en\/skyrsla\/erfdabreytileiki-laxa-i-laxa-i-adaldal\/\">Sk\u00fdrslan er a\u00f0gengileg \u00ed heild \u00e1 vef Mat\u00eds <\/a>og er \u00f6llum opi\u00f0 a\u00f0 kynna s\u00e9r ni\u00f0urst\u00f6\u00f0ur hennar og a\u00f0fer\u00f0afr\u00e6\u00f0i.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.mbl.is\/frettir\/veidi\/2026\/02\/10\/standa_vid_skyrsluna_og_opinbera_hana\/\">Sj\u00e1 einnig fr\u00e9tt \u00e1 Mbl.is.<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Mat\u00eds hefur birt \u00ed heild sinni sk\u00fdrsluna Erf\u00f0abreytileiki laxa \u00ed Lax\u00e1 \u00ed A\u00f0aldal, a\u00f0 fengnu leyfi Landsvirkjunar sem var kaupandi [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":56858,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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