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   "content" : "# Rekordvarmt i sjøen langs norskekysten i 2025\n\nI snart 100 år har Havforskningsinstituttet målt temperaturene i sjøen langs norskekysten. Temperaturene var i fjor rekordhøye.\n\n- \n- \n- \n- \n\n- NTB\\-Fredrik Moen Gabrielsen\n\n– Når vi ser på alle stasjonene samlet, ser vi at 2025 er det varmeste året målt noensinne, sier forskningssjef Ingrid Askeland Johnsen ved Havforskningsinstituttet i en pressemelding.\n\nSiden 1930\\-årene har de målt vanntemperaturen både øverst i overflaten og et stykke ned i dypet.\n\nDe har sju faste målingsstasjoner, én i Finnmark, to i Nordland, én i Midt\\-Norge, to på Vestlandet og én på Sørlandet.\n\n## Rekordvarmt langt nede i dypet\n\nOver hele landet fra nord til sør var det uvanlig høye temperaturer i vannoverflaten, ifølge målingene.\n\nPå Sør\\- og Vestlandet var det også unormalt varmt utover høsten.\n\n– Og i dypet ned mot 100 meter var det varmere enn vanlig mesteparten av året. Også her var det varmest på Sør\\- og Vestlandet, sier Johnsen.\n\n## Rekordvarmt hos oppdrettsanleggene\n\nOgså internasjonale målinger og modeller støtter opp under instituttets funn. I tillegg mottar Havforskningsinstituttet data fra oppdrettsanlegg langs hele kysten, hvor det måles temperaturer fra tre meters dyp.\n\nOgså der viser målingene rekord:\n\n– I alle områdene sør for Bodø har 2025 vært den varmeste høsten siden tidsserien startet i 2012, sier forskningssjefen.\n\n## Marin hetebølge\n\nI høst meldte Havforskningsinstituttet om den kraftigste marine hetebølgen på minst 30 år. Den marine hetebølgen startet 9. juli i sommer og satte sitt preg på vestlandskysten i en hel måned.\n\nEn marin hetebølge er uvanlig høy sjøtemperatur over minst fem dager.\n\n– Under slike temperaturøkninger er tare\\- og sjøgressenger spesielt sårbare. Det samme gjelder dyr som beveger seg lite, som oppdrettsfisk, og fastsittende organismer som østers og blåskjell, forklarte forsker Silvana Gonzalez ved Havforskningsinstituttet i en [pressemelding. ](https://www.hi.no/hi/nyheter/2025/september/vestlandet-kraftigste-marine-hetebolge-pa-minst-30-ar)",
   "created_at" : "2026-01-05 06:55:27",
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   "metadata" : "{\"description\":\"I snart 100 år har Havforskningsinstituttet målt temperaturene i sjøen langs norskekysten. Temperaturene var i fjor rekordhøye.\",\"image_url\":\"https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&format=auto&h=1365&w=2048&s=f13afa99c82df934768b5a678f225465ed6cbf81\",\"raw_feed_item\":\"<item>\\n            <title><![CDATA[Marin hetebølge i fjor – konsekvenser for oppdrettsfisk og blåskjell]]></title>\\n            <link>https://www.aftenposten.no/norge/i/n1a6za/rekordvarmt-i-sjoeen-langs-norskekysten-i-2025</link>\\n            <guid>https://www.aftenposten.no/i/n1a6za</guid>\\n            <pubDate>Mon, 05 Jan 2026 05:38:19 GMT</pubDate>\\n            <description><![CDATA[I snart 100 år har Havforskningsinstituttet målt temperaturene i sjøen langs norskekysten.]]></description>\\n            <enclosure length=\\\"65535\\\" type=\\\"image/jpeg\\\" url=\\\"https://premium.vgc.no/v2/images/cba2a8ce-588c-4491-925d-4560a070b36f?fit=crop&amp;format=auto&amp;h=1152&amp;tight=true&amp;w=2048&amp;s=0a7e5c3d81879534f47829688f5ab20403ab789e\\\" />\\n        </item>\",\"source_updated_at\":\"2026-01-05 05:38:02\",\"published_at\":\"2026-01-05 05:38:19\",\"is_paywalled\":1,\"author\":\"\",\"twitter\":{},\"schema\":{\"microdata\":{\"datePublished\":\"25. november 2025\"}},\"meta\":{\"description\":\"I snart 100 år har Havforskningsinstituttet målt temperaturene i sjøen langs norskekysten. Temperaturene var i fjor rekordhøye.\",\"application-name\":\"Aftenposten\",\"robots\":\"max-image-preview:none\",\"apple-mobile-web-app-status-bar-style\":\"black-translucent\",\"apple-mobile-web-app-capable\":\"yes\",\"msapplication-config\":\"/cnp-assets/favicon-6c399f1f/browserconfig.xml\",\"apple-mobile-web-app-title\":\"Aftenposten\",\"viewport\":\"width=device-width, initial-scale=1.0\",\"theme-color\":\"#fff\",\"msapplication-TileImage\":\"/cnp-assets/favicon-6c399f1f/mstile-144x144.png\",\"msapplication-TileColor\":\"#fff\",\"mobile-web-app-capable\":\"yes\"},\"title\":\"Rekordvarmt i sjøen langs norskekysten i 2025\",\"keywords\":[],\"og\":{\"type\":\"article\",\"image\":\"https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&format=auto&h=1365&w=2048&s=f13afa99c82df934768b5a678f225465ed6cbf81\",\"url\":\"https://www.aftenposten.no/norge/i/n1a6za/rekordvarmt-i-sjoeen-langs-norskekysten-i-2025\",\"description\":\"I snart 100 år har Havforskningsinstituttet målt temperaturene i sjøen langs norskekysten. Temperaturene var i fjor rekordhøye.\",\"title\":\"Rekordvarmt i sjøen langs norskekysten i 2025\",\"image:height\":\"1365\",\"image:width\":\"2048\"},\"content\":\"# Rekordvarmt i sjøen langs norskekysten i 2025\\n\\nI snart 100 år har Havforskningsinstituttet målt temperaturene i sjøen langs norskekysten. Temperaturene var i fjor rekordhøye.\\n\\n- \\n- \\n- \\n- \\n\\n- NTB\\\\-Fredrik Moen Gabrielsen\\n\\n– Når vi ser på alle stasjonene samlet, ser vi at 2025 er det varmeste året målt noensinne, sier forskningssjef Ingrid Askeland Johnsen ved Havforskningsinstituttet i en pressemelding.\\n\\nSiden 1930\\\\-årene har de målt vanntemperaturen både øverst i overflaten og et stykke ned i dypet.\\n\\nDe har sju faste målingsstasjoner, én i Finnmark, to i Nordland, én i Midt\\\\-Norge, to på Vestlandet og én på Sørlandet.\\n\\n## Rekordvarmt langt nede i dypet\\n\\nOver hele landet fra nord til sør var det uvanlig høye temperaturer i vannoverflaten, ifølge målingene.\\n\\nPå Sør\\\\- og Vestlandet var det også unormalt varmt utover høsten.\\n\\n– Og i dypet ned mot 100 meter var det varmere enn vanlig mesteparten av året. Også her var det varmest på Sør\\\\- og Vestlandet, sier Johnsen.\\n\\n## Rekordvarmt hos oppdrettsanleggene\\n\\nOgså internasjonale målinger og modeller støtter opp under instituttets funn. I tillegg mottar Havforskningsinstituttet data fra oppdrettsanlegg langs hele kysten, hvor det måles temperaturer fra tre meters dyp.\\n\\nOgså der viser målingene rekord:\\n\\n– I alle områdene sør for Bodø har 2025 vært den varmeste høsten siden tidsserien startet i 2012, sier forskningssjefen.\\n\\n## Marin hetebølge\\n\\nI høst meldte Havforskningsinstituttet om den kraftigste marine hetebølgen på minst 30 år. Den marine hetebølgen startet 9. juli i sommer og satte sitt preg på vestlandskysten i en hel måned.\\n\\nEn marin hetebølge er uvanlig høy sjøtemperatur over minst fem dager.\\n\\n– Under slike temperaturøkninger er tare\\\\- og sjøgressenger spesielt sårbare. Det samme gjelder dyr som beveger seg lite, som oppdrettsfisk, og fastsittende organismer som østers og blåskjell, forklarte forsker Silvana Gonzalez ved Havforskningsinstituttet i en [pressemelding. ](https://www.hi.no/hi/nyheter/2025/september/vestlandet-kraftigste-marine-hetebolge-pa-minst-30-ar)\"}",
   "og_title" : "Rekordvarmt i sjøen langs norskekysten i 2025",
   "published_at" : "2026-01-05 05:38:19",
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id=\"topboard\" style=\"min-height:150px\"></div></div><div class=\"advertory-wrapper-common-wallpaper wallpaper\"><div class=\"advertory-common-wallpaper disable-cogwheel\" id=\"wallpaper\"></div></div></div><div class=\"hyperion-css-dz5hzo\"><article class=\"article-wrapper-n1a6za\"><div class=\"default running-head extendedContent hyperion-css-1snqkhu\" data-test-tag=\"running-head\"><div class=\"hyperion-css-7enjca\"><a aria-label=\"Norge\" class=\"hyperion-css-1raymq9\" data-test-tag=\"internal-link\" href=\"/norge\" rel=\"\" target=\"\">Norge</a></div></div><h1 class=\"extendedContent h1 hyperion-css-1bmyg1c\" data-test-tag=\"headline\">Rekordvarmt i sjøen langs norskekysten i 2025</h1><p class=\"extendedContent hyperion-css-eyn926\" data-test-tag=\"lead-text\">I snart 100 år har Havforskningsinstituttet målt temperaturene i sjøen langs norskekysten. Temperaturene var i fjor rekordhøye.</p><div class=\"hyperion-css-ytalhi\"><div class=\"hyperion-css-upuxee\"><div class=\"contentWidth paywall hyperion-css-eemj7d\"><div class=\"hyperion-css-152x5og\"><div class=\"hyperion-css-1xdhyk6\"></div></div></div></div><div class=\"hyperion-css-6kzd76\"></div></div><div aria-label=\"Galleri med 2 bilder\" class=\"gallery fullWidthDesktop paywall hyperion-css-1vyix3e\" data-test-tag=\"gallery\" role=\"presentation\"><div class=\"carousel hyperion-css-f7ie9q\" data-test-tag=\"carousel\"><button aria-label=\"forrige\" class=\"default button carousel-change-slide-button carousel-clickable-area carousel-previous-button hyperion-css-tuz46r\" type=\"button\"><span class=\"text hyperion-css-ea91rp\">forrige</span></button><div aria-label=\"fullskjerm\" class=\"hyperion-css-75nabn\" role=\"button\" tabindex=\"0\"><div class=\"carousel-container\"><ul class=\"carousel-container-viewport\" style=\"transform:translate3d(-100px, 0, 0)\"><li class=\"carousel-slide\" style=\"max-width:980px;width:80%;filter:opacity(0.3)\"><div class=\"carousel-slide-item-wrapper\"><img alt=\"Havforskningsinstituttet har sju faste målingsstasjoner som måler temperaturen i havoverflaten og nede i dypet, blant annet i Lofoten. \" class=\"image-asset hyperion-css-u06ts1\" data-test-tag=\"image-asset\" fetchpriority=\"auto\" sizes=\"(min-width: 980px) 980px, 80vw\" src=\"https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=1365&amp;w=2048&amp;s=88615b0fc3f251bb707e84e35f7d56a18b31fa78\" srcset=\"https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=1365&amp;w=2048&amp;s=88615b0fc3f251bb707e84e35f7d56a18b31fa78 2048w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=960&amp;w=1440&amp;s=9cc8c11a1deac3951ec08459965fe46f6ef94243 1440w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=683&amp;w=1024&amp;s=641a07eebde11343ca670b6417fd308c0090c857 1024w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=653&amp;w=980&amp;s=24919cf7ae5ffb9cb8cb461db22b571cbad1fd67 980w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=520&amp;w=780&amp;s=133fd6cc199fd890e99618b434074b1d5f89b7f8 780w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=387&amp;w=580&amp;s=c38fa82bfeec6ff7b8c6d61ec01ceacb44254cbe 580w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=253&amp;w=380&amp;s=379a45b5c6e0b482d29c4c668be87eff77b344a8 380w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=133&amp;w=200&amp;s=eecab5065d6cd9ee29cd5d4fbabbb4da378c1761 200w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=67&amp;w=100&amp;s=4609dc33e2dc8c47208b187319c6e1fdb4473829 100w\" style=\"aspect-ratio:2048 / 1365\"></div></li><li class=\"carousel-slide\" style=\"z-index:1;max-width:980px;width:80%;filter:opacity(1)\"><div class=\"carousel-slide-item-wrapper\"><img alt=\"2025 ble et rekordvarmt år i norske farvann, ifølge Havforskningsinstituttet. \" class=\"image-asset hyperion-css-u06ts1\" data-test-tag=\"image-asset\" fetchpriority=\"auto\" sizes=\"(min-width: 980px) 980px, 80vw\" src=\"https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=1365&amp;w=2048&amp;s=f13afa99c82df934768b5a678f225465ed6cbf81\" srcset=\"https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=1365&amp;w=2048&amp;s=f13afa99c82df934768b5a678f225465ed6cbf81 2048w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=960&amp;w=1440&amp;s=819dfc73726e07cc018c30fe8dadc2ab0e833de2 1440w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=683&amp;w=1024&amp;s=9923e888e06f7516bd25ed7716c449d925412a0a 1024w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=653&amp;w=980&amp;s=ac5732815e6eb96646f41af5daafeef93a8f40a2 980w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=520&amp;w=780&amp;s=a7cd186dccc73d9254123631f56ab4186c68b233 780w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=387&amp;w=580&amp;s=36bdf7f047ec8ba7985ac2f6015795b021cc052d 580w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=253&amp;w=380&amp;s=91487cd79010d4007e63cfe14acaea3ef0c75706 380w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=133&amp;w=200&amp;s=d2d382488293f78ceb17a58d3dc006c2b0a40468 200w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=67&amp;w=100&amp;s=b3f73211e7893940bce4690a639c871cdad7d4ef 100w\" style=\"aspect-ratio:2048 / 1365\"></div></li><li class=\"carousel-slide\" style=\"max-width:980px;width:80%;filter:opacity(0.3)\"><div class=\"carousel-slide-item-wrapper\"><img alt=\"Havforskningsinstituttet har sju faste målingsstasjoner som måler temperaturen i havoverflaten og nede i dypet, blant annet i Lofoten. \" class=\"image-asset hyperion-css-u06ts1\" data-test-tag=\"image-asset\" fetchpriority=\"auto\" sizes=\"(min-width: 980px) 980px, 80vw\" src=\"https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=1365&amp;w=2048&amp;s=88615b0fc3f251bb707e84e35f7d56a18b31fa78\" srcset=\"https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=1365&amp;w=2048&amp;s=88615b0fc3f251bb707e84e35f7d56a18b31fa78 2048w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=960&amp;w=1440&amp;s=9cc8c11a1deac3951ec08459965fe46f6ef94243 1440w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=683&amp;w=1024&amp;s=641a07eebde11343ca670b6417fd308c0090c857 1024w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=653&amp;w=980&amp;s=24919cf7ae5ffb9cb8cb461db22b571cbad1fd67 980w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=520&amp;w=780&amp;s=133fd6cc199fd890e99618b434074b1d5f89b7f8 780w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=387&amp;w=580&amp;s=c38fa82bfeec6ff7b8c6d61ec01ceacb44254cbe 580w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=253&amp;w=380&amp;s=379a45b5c6e0b482d29c4c668be87eff77b344a8 380w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=133&amp;w=200&amp;s=eecab5065d6cd9ee29cd5d4fbabbb4da378c1761 200w,https://premium.vgc.no/v2/images/d08bfa38-7a0a-49a7-b94a-97d1a85b9586?fit=crop&amp;format=auto&amp;h=67&amp;w=100&amp;s=4609dc33e2dc8c47208b187319c6e1fdb4473829 100w\" style=\"aspect-ratio:2048 / 1365\"></div></li><li class=\"carousel-slide\" style=\"max-width:980px;width:80%;filter:opacity(1)\"><div class=\"carousel-slide-item-wrapper\"><img alt=\"2025 ble et rekordvarmt år i norske farvann, ifølge Havforskningsinstituttet. \" class=\"image-asset hyperion-css-u06ts1\" data-test-tag=\"image-asset\" fetchpriority=\"auto\" sizes=\"(min-width: 980px) 980px, 80vw\" src=\"https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=1365&amp;w=2048&amp;s=f13afa99c82df934768b5a678f225465ed6cbf81\" srcset=\"https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=1365&amp;w=2048&amp;s=f13afa99c82df934768b5a678f225465ed6cbf81 2048w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=960&amp;w=1440&amp;s=819dfc73726e07cc018c30fe8dadc2ab0e833de2 1440w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=683&amp;w=1024&amp;s=9923e888e06f7516bd25ed7716c449d925412a0a 1024w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=653&amp;w=980&amp;s=ac5732815e6eb96646f41af5daafeef93a8f40a2 980w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=520&amp;w=780&amp;s=a7cd186dccc73d9254123631f56ab4186c68b233 780w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=387&amp;w=580&amp;s=36bdf7f047ec8ba7985ac2f6015795b021cc052d 580w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=253&amp;w=380&amp;s=91487cd79010d4007e63cfe14acaea3ef0c75706 380w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=133&amp;w=200&amp;s=d2d382488293f78ceb17a58d3dc006c2b0a40468 200w,https://premium.vgc.no/v2/images/1491d13b-95ad-441e-a8eb-eb01c8d029c5?fit=crop&amp;format=auto&amp;h=67&amp;w=100&amp;s=b3f73211e7893940bce4690a639c871cdad7d4ef 100w\" style=\"aspect-ratio:2048 / 1365\"></div></li></ul></div><div class=\"hyperion-css-1oq71r0\"><button aria-label=\"fullskjerm\" class=\"default button gallery-fullscreen-button hyperion-css-1azovls\" type=\"button\"><div class=\"hyperion-css-0\"></div><span class=\"text hyperion-css-1r5gb7q\">fullskjerm</span></button></div></div><button aria-label=\"neste\" class=\"default button carousel-change-slide-button carousel-clickable-area carousel-next-button hyperion-css-tuz46r\" type=\"button\"><span class=\"text hyperion-css-ea91rp\">neste</span></button></div><figcaption class=\"gallery-figcaption hyperion-css-1cbahr2\" data-test-tag=\"gallery:figcaption\"><span aria-hidden=\"true\" class=\"hyperion-css-12zgx7b\">2025 ble et rekordvarmt år i norske farvann, ifølge Havforskningsinstituttet.</span><div class=\"hyperion-css-0\"><span class=\"hyperion-css-96b533\">1 av 2</span><span class=\"hyperion-css-1qmnp5i\">Foto: Terje Bendiksby / NTB</span></div></figcaption></div><div class=\"paywall hyperion-css-1ej05iu\"><div class=\"hyperion-css-qwp0ac\" data-test-tag=\"byline\" data-testid=\"byline\"><ul class=\"hyperion-css-1772xtw\" data-test-tag=\"byline:authors\" data-testid=\"byline:authors\"><li class=\"hyperion-css-b8p8ys\"><div class=\"hyperion-css-b8p8ys\"><div class=\"hyperion-css-0\"><span class=\"byline-name hyperion-css-1cn5stf\" data-test-tag=\"byline:author-name\" data-testid=\"byline:author-name\">NTB-Fredrik Moen Gabrielsen</span></div></div></li></ul></div></div><div class=\"paywall hyperion-css-okzep\" data-test-tag=\"timestamp\"><div><time aria-label=\"Publisert: 05.01.2026 06:38\" datetime=\"2026-01-05T05:38:19Z\" itemprop=\"datePublished\">Publisert: 05.01.2026 06:38</time></div></div><p class=\"paywall hyperion-css-1j42uic\">– Når vi ser på alle stasjonene samlet, ser vi at 2025 er det varmeste året målt noensinne, sier forskningssjef Ingrid Askeland Johnsen ved Havforskningsinstituttet i en pressemelding.</p><p class=\"paywall hyperion-css-1j42uic\">Siden 1930-årene har de målt vanntemperaturen både øverst i overflaten og et stykke ned i dypet.</p><div class=\"advertory-aftenposten-netboard-wrapper__article \"><div class=\"advertory-aftenposten-netboard__article\" id=\"netboard_1\"></div></div><p class=\"paywall hyperion-css-1j42uic\">De har sju faste målingsstasjoner, én i Finnmark, to i Nordland, én i Midt-Norge, to på Vestlandet og én på Sørlandet.</p><h2 class=\"paywall hyperion-css-npxxyf\" data-test-tag=\"paragraph-header\">Rekordvarmt langt nede i dypet</h2><p class=\"paywall hyperion-css-1j42uic\">Over hele landet fra nord til sør var det uvanlig høye temperaturer i vannoverflaten, ifølge målingene. </p><p class=\"paywall hyperion-css-1j42uic\">På Sør- og Vestlandet var det også unormalt varmt utover høsten.</p><p class=\"paywall hyperion-css-1j42uic\">– Og i dypet ned mot 100 meter var det varmere enn vanlig mesteparten av året. Også her var det varmest på Sør- og Vestlandet, sier Johnsen.</p><h2 class=\"paywall hyperion-css-npxxyf\" data-test-tag=\"paragraph-header\">Rekordvarmt hos oppdrettsanleggene</h2><p class=\"paywall hyperion-css-1j42uic\">Også internasjonale målinger og modeller støtter opp under instituttets funn. I tillegg mottar Havforskningsinstituttet data fra oppdrettsanlegg langs hele kysten, hvor det måles temperaturer fra tre meters dyp. </p><p class=\"paywall hyperion-css-1j42uic\">Også der viser målingene rekord:</p><div class=\"advertory-aftenposten-netboard-wrapper__article \"><div class=\"advertory-aftenposten-netboard__article\" id=\"brandboard\"></div></div><p class=\"paywall hyperion-css-1j42uic\">– I alle områdene sør for Bodø har 2025 vært den varmeste høsten siden tidsserien startet i 2012, sier forskningssjefen.</p><h2 class=\"paywall hyperion-css-npxxyf\" data-test-tag=\"paragraph-header\">Marin hetebølge</h2><p class=\"paywall hyperion-css-1j42uic\">I høst meldte Havforskningsinstituttet om den kraftigste marine hetebølgen på minst 30 år. Den marine hetebølgen startet 9. juli i sommer og satte sitt preg på vestlandskysten i en hel måned.</p><p class=\"paywall hyperion-css-1j42uic\">En marin hetebølge er uvanlig høy sjøtemperatur over minst fem dager. </p><p class=\"paywall hyperion-css-1j42uic\"> – Under slike temperaturøkninger er tare- og sjøgressenger spesielt sårbare. Det samme gjelder dyr som beveger seg lite, som oppdrettsfisk, og fastsittende organismer som østers og blåskjell, forklarte forsker Silvana Gonzalez ved Havforskningsinstituttet i en <a aria-label=\"pressemelding. \" class=\"default hyperion-css-1raymq9\" data-test-tag=\"external-link\" href=\"https://www.hi.no/hi/nyheter/2025/september/vestlandet-kraftigste-marine-hetebolge-pa-minst-30-ar\" rel=\"noopener nofollow noreferrer\" target=\"_blank\">pressemelding. </a></p></article><div class=\"advertory-brandmetrics-survey\" id=\"brandmetrics-survey\"></div><div class=\"hyperion-css-1yxx8oe\"><div class=\"hyperion-css-1jbnpry\"><button aria-label=\"Kopier URL til utklippstavle\" class=\"hyperion-css-pdsgro\" title=\"Kopier URL til utklippstavle\" type=\"button\">Kopier lenke</button><a aria-label=\"Tips oss\" class=\"hyperion-css-1f62hkp\" data-test-tag=\"internal-link\" href=\"/tips\" rel=\"\" target=\"\">Tips oss</a></div></div><div class=\"extendedContent paywall hyperion-css-177q39v\" id=\"widget-recirculation-matrix\"><h2 class=\"hyperion-css-r57xc5\" data-test-tag=\"widget:title\">Les videre</h2><div class=\"bundle extendedContent hyperion-css-cbecqi\"><ol class=\"hyperion-css-1700tdj\"><li class=\"hyperion-css-1lcs599\"><a aria-label=\"2024 og 2023 ble de to varmeste årene målt noensinne. Nå ligger 2025 også an til å innta pallen. \" class=\"imagePosition-top medium news-teaser hyperion-css-bvr9ut\" data-test-tag=\"teaser-medium:link-internal\" href=\"/verden/i/OoRj6k/copernicus-2025-paa-vei-til-aa-bli-det-tredje-varmeste-aaret\" rel=\"\" target=\"\"><div class=\"hyperion-css-bjn8wh\"><div class=\"hyperion-css-1k8sl4j\"><img alt=\"\" class=\"image-asset hyperion-css-n6kkq1\" data-test-tag=\"image-asset\" fetchpriority=\"auto\" loading=\"lazy\" sizes=\"(min-width: 981px) 980px, 100vw\" src=\"https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=1150&amp;w=1533&amp;s=68dd6f162652eb7f1bf6bfdccfaf8cdc8b3f514a\" srcset=\"https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=1150&amp;w=1533&amp;s=68dd6f162652eb7f1bf6bfdccfaf8cdc8b3f514a 1533w,https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=1080&amp;w=1440&amp;s=1312f164f265a0fb3c76dba73482c0c71cd5290e 1440w,https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=768&amp;w=1024&amp;s=533cfe1ba7ce680a967e1ec1619c00061021dbb3 1024w,https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=735&amp;w=980&amp;s=0076f7098daf624e3ab3782b4853a19082f31def 980w,https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=585&amp;w=780&amp;s=862a7538cce7c55d2b2b367724a888f07dad1a00 780w,https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=435&amp;w=580&amp;s=08978c83a4961c6c566ee0218b9a4519a56673b1 580w,https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=285&amp;w=380&amp;s=7d64fdd5fdbae980ce4fd7b38deaa2410ab44807 380w,https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=150&amp;w=200&amp;s=22e1fb092a18ece21e183496a4f9b9e293752c4d 200w,https://premium.vgc.no/v2/images/483cf13f-8ed8-48e7-98f4-390ea96766f5?fit=crop&amp;format=auto&amp;h=75&amp;w=100&amp;s=6dfc48c40ffffddad577de5b0ec21d271d6ee833 100w\" style=\"aspect-ratio:1533 / 1150\"></div></div><div class=\"hyperion-css-1hlrz9z\"><div class=\"teaser-label hyperion-css-52yh2p\">VERDEN<div class=\"timestamp friendly hyperion-css-10eh1jy\" data-test-tag=\"timestamp\"><span class=\"hyperion-css-ea91rp\">Publisert:</span><div><time aria-label=\"2025-11-07T05:12:34Z\" datetime=\"2025-11-07T05:12:34Z\" itemprop=\"datePublished\" pubdate=\"pubdate\">7. november 2025</time></div></div></div><div class=\"default hyperion-css-1ucd1we\"><h2 class=\"hyperion-css-1hyuqep\">2024 og 2023 ble de to varmeste årene målt noensinne. Nå ligger 2025 også an til å innta pallen. </h2></div></div></a></li><li class=\"hyperion-css-1lcs599\"><a aria-label=\"Varmeste førjulstid noensinne i Oslo og Bergen siden målingene startet\" class=\"imagePosition-top medium news-teaser hyperion-css-bvr9ut\" data-test-tag=\"teaser-medium:link-internal\" href=\"/norge/i/XMgdl7/varmeste-foerjulstid-noensinne-i-oslo-og-bergen-siden-maalingene-startet\" rel=\"\" target=\"\"><div class=\"hyperion-css-bjn8wh\"><div class=\"hyperion-css-1k8sl4j\"><img alt=\"\" class=\"image-asset hyperion-css-n6kkq1\" data-test-tag=\"image-asset\" fetchpriority=\"auto\" loading=\"lazy\" sizes=\"(min-width: 981px) 980px, 100vw\" src=\"https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=1536&amp;w=2048&amp;s=a676766d4a1705a23ccce55b96422495555d124e\" srcset=\"https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=1536&amp;w=2048&amp;s=a676766d4a1705a23ccce55b96422495555d124e 2048w,https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=1080&amp;w=1440&amp;s=225003227411b3d01dd61e2e3a5484c1add93163 1440w,https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=768&amp;w=1024&amp;s=b02d434bc5eb411b70dada0a40bca9f3d24f8caf 1024w,https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=735&amp;w=980&amp;s=837e549710279b323b96deccc775822f8ab2c60c 980w,https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=585&amp;w=780&amp;s=bb83fb627761b78a5c1618c58065c15afa509df7 780w,https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=435&amp;w=580&amp;s=a3fc347f26b1b56c845f0ba2a657b5176846257d 580w,https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=285&amp;w=380&amp;s=6c86bb1cf95e319adae2ba85c563a9309f4454b7 380w,https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=150&amp;w=200&amp;s=de70119c4979ca9de336343b3077a62882dac6c2 200w,https://premium.vgc.no/v2/images/507647c7-fc88-4be9-b7c3-be78944825c7?fit=crop&amp;format=auto&amp;h=75&amp;w=100&amp;s=75eca6574db3f67bf161bdc7518399aba89ddcc8 100w\" style=\"aspect-ratio:2048 / 1536\"></div></div><div class=\"hyperion-css-1hlrz9z\"><div class=\"teaser-label hyperion-css-52yh2p\">NORGE<div class=\"timestamp friendly hyperion-css-10eh1jy\" data-test-tag=\"timestamp\"><span class=\"hyperion-css-ea91rp\">Publisert:</span><div><time aria-label=\"2025-12-24T08:47:37Z\" datetime=\"2025-12-24T08:47:37Z\" itemprop=\"datePublished\" pubdate=\"pubdate\">24. desember 2025</time></div></div></div><div class=\"default hyperion-css-1ucd1we\"><h2 class=\"hyperion-css-1hyuqep\">Varmeste førjulstid noensinne i Oslo og Bergen siden målingene startet</h2></div></div></a></li><li class=\"hyperion-css-1lcs599\"><div class=\"advertory-aftenposten-netboard-wrapper \"><div class=\"advertory-aftenposten-netboard\" id=\"netboard_recirc\"></div></div></li><li class=\"hyperion-css-1lcs599\"><a aria-label=\"Kråkebollene forsvant og blåskjellene døde. Nå går han rettens vei for å stoppe forurensningen.\" class=\"imagePosition-top medium news-teaser hyperion-css-bvr9ut\" data-test-tag=\"teaser-medium:link-internal\" href=\"/e24/i/al5O22\" rel=\"\" target=\"\"><div class=\"hyperion-css-bjn8wh\"><div class=\"hyperion-css-1k8sl4j\"><img alt=\"\" class=\"image-asset hyperion-css-n6kkq1\" data-test-tag=\"image-asset\" fetchpriority=\"auto\" loading=\"lazy\" sizes=\"(min-width: 981px) 980px, 100vw\" src=\"https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=1536&amp;w=2048&amp;s=5e42d977c95df93bc9251790ce84130ecece1f68\" srcset=\"https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=1536&amp;w=2048&amp;s=5e42d977c95df93bc9251790ce84130ecece1f68 2048w,https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=1080&amp;w=1440&amp;s=4b66cac2b5dc098a92383ea8785baf46ee2aa06e 1440w,https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=768&amp;w=1024&amp;s=f78f8e5c0b02f55dc870b9355ba9e3c895255096 1024w,https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=735&amp;w=980&amp;s=4b847d49ac52c4eb871ed5aecd6ea0865ab10074 980w,https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=585&amp;w=780&amp;s=cb93c06bbcec9cf72844ba03a6cf6b709fb52d97 780w,https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=435&amp;w=580&amp;s=63b8245aaad2337e74c7bc349c2eaad10a5a46f1 580w,https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=285&amp;w=380&amp;s=3d8cb28274e4e8abd9d4a36247ce1eb958b2b62e 380w,https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=150&amp;w=200&amp;s=2b7abb179cfd2f995a1c0a345dda7175931546de 200w,https://premium.vgc.no/v2/images/a53f8d59-987f-439b-b5be-aa58ad848a9c?fit=crop&amp;format=auto&amp;h=75&amp;w=100&amp;s=a46d257bd1b8405bd399791878b8ab024d9ab3a4 100w\" style=\"aspect-ratio:2048 / 1536\"></div></div><div class=\"hyperion-css-1hlrz9z\"><div class=\"teaser-label hyperion-css-52yh2p\">ØKONOMI<div class=\"timestamp friendly hyperion-css-10eh1jy\" data-test-tag=\"timestamp\"><span class=\"hyperion-css-ea91rp\">Publisert:</span><div><time aria-label=\"2025-11-25T06:18:13Z\" datetime=\"2025-11-25T06:18:13Z\" itemprop=\"datePublished\" pubdate=\"pubdate\">25. november 2025</time></div></div></div><div class=\"default hyperion-css-1ucd1we\"><h2 class=\"hyperion-css-1hyuqep\">Kråkebollene forsvant og blåskjellene døde. Nå går han rettens vei for å stoppe forurensningen.</h2></div></div></a></li></ol></div></div><div class=\"advertory-aftenposten-netboard-wrapper__article \"><div class=\"advertory-aftenposten-netboard__article\" id=\"netboard_5\"></div></div><div class=\"observer-placeholder\"><noscript></noscript></div><div class=\"hyperion-css-1q3hux1\"><button aria-label=\"Tilbake til forsiden\" class=\"hyperion-css-1t4sy44\" title=\"Tilbake til forsiden\" type=\"button\">Tilbake til forsiden</button></div><div class=\"advertory-aftenposten-netboard-wrapper__article advertory-aftenposten-bottom-ad\"><div class=\"advertory-aftenposten-netboard__article\" id=\"netboard_6\"></div></div></div><div></div></div><div class=\"hyperion-css-1927kqg\" id=\"superright-side\"><div class=\"advertory-aftenposten-skyscraperright_1-wrapper\"><div class=\"advertory-aftenposten-skyscraperright_1\" id=\"skyscraperright_1\"></div></div></div></div><footer class=\"hyperion-css-1ykq07t\" role=\"contentinfo\"><div class=\"container\"><div class=\"links\"><ul><li><a class=\"actionLink\" href=\"https://www.aftenposten.no/tips\">Tips oss</a></li><li><a class=\"actionLink\" href=\"https://www.aftenposten.no/meninger/debatt/i/Ooyk/informasjon-om-debattinnlegg-og-kronikker-til-aftenposten\">Send inn debattinnlegg</a></li><li><a class=\"actionLink\" href=\"https://www.aftenposten.no/rettelser\">Endringslogg</a></li><li><a class=\"actionLink\" href=\"https://www.aftenposten.no/slik-jobber-vi-i-aftenposten\">Slik jobber vi i Aftenposten</a></li></ul><ul><li><a class=\"actionLink\" href=\"https://kundeservice.aftenposten.no/s/\">Kundeservice</a></li><li><a class=\"actionLink\" href=\"https://schibstedforbusiness.com/no/merkevarer/aftenposten/\">Annonsere i Aftenposten</a></li><li><a class=\"actionLink\" href=\"https://info.privacy.schibsted.com/no/schibsted-norge-personvernerklaering/\">Personvernpolicy</a></li><li><a class=\"actionLink\" href=\"https://info.privacy.schibsted.com/no/schibsted-norge-personvernerklaering/\">Informasjonskapsler</a></li></ul><div class=\"logos\"><div class=\"hyperion-css-15fvjg8\" data-loaded=\"true\"><noscript><img alt=\"aftenposten-logo\" src=\"https://cdn.aftenposten.no/ap/images/footer/circular-ap-logo.png\" width=\"\"></noscript></div><a aria-label=\"Lenke til Redaktørplakaten etiske og juridiske rammeverk på Redaktor.no\" class=\"hyperion-css-hkgcqn\" href=\"https://www.redaktor.no/ressurser/etiske-og-juridiske-rammeverk/redaktorplakaten\" rel=\"noopener noreferrer\" target=\"_blank\"><noscript><img alt=\"Ansvarsmerket\" src=\"https://cdn.aftenposten.no/ap/images/footer/ansvarsmerket.svg\"></noscript></a></div></div><div class=\"info\"><ul><li><span>Sjefredaktør og adm. direktør: </span><span class=\"name\">Trine Eilertsen</span></li><li><span>Nyhetsredaktør: </span><span class=\"name\">Tone Tveøy Strøm-Gundersen</span></li><li><span>Politisk redaktør: </span><span class=\"name\">Kjetil B. 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   "source_updated_at" : "2026-01-05 05:38:02",
   "summary" : "I snart 100 år har Havforskningsinstituttet målt temperaturene i sjøen langs norskekysten.",
   "tags" : null,
   "title" : "Marin hetebølge i fjor – konsekvenser for oppdrettsfisk og blåskjell",
   "twitter_title" : null,
   "version" : 1
}