{"id":45797,"date":"2026-11-01T14:47:48","date_gmt":"2026-11-01T13:47:48","guid":{"rendered":"https:\/\/www.deepseareporter.com\/?p=45797"},"modified":"2026-11-01T14:47:50","modified_gmt":"2026-11-01T13:47:50","slug":"doften-fran-algernas-fiende-kan-varna-for-gifter","status":"publish","type":"post","link":"https:\/\/www.deepseareporter.com\/sv\/doften-fran-algernas-fiende-kan-varna-for-gifter\/","title":{"rendered":"Doften fr\u00e5n algernas fiende kan varna f\u00f6r gifter"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Lukten fr\u00e5n hoppkr\u00e4ftor kan anv\u00e4ndas i ett varningssystem f\u00f6r giftiga algblomningar.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Metoden skulle kunna f\u00f6rvarna om utbrott upp till sju veckor i f\u00f6rv\u00e4g.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8211; Man kan se framf\u00f6r sig att man g\u00f6r prognoser f\u00f6r giftig algblomning ungef\u00e4r som man g\u00f6r f\u00f6r v\u00e4dret, s\u00e4ger Erik Selander, ekolog vid Lunds universitet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hoppkr\u00e4ftan \u00e4r bara n\u00e5gra millimeter l\u00e5ng, men den \u00e4r algernas fiende nummer ett.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Algerna \u00e4r basen i havets n\u00e4ringsv\u00e4v, j\u00e4mf\u00f6rbara med gr\u00f6na v\u00e4xter p\u00e5 land, och hoppkr\u00e4ftorna \u00e4r de vanligaste djurplankton som \u00e4ter alger. Betande hoppkr\u00e4ftor ses d\u00e4rf\u00f6r som ett hot av algerna. N\u00e4r algerna k\u00e4nner doften av hoppkr\u00e4ftor tillverkar de gift i sj\u00e4lvf\u00f6rsvar.<\/p>\n\n\n\n<h2 id=\"h-skyddas-av-gift\" class=\"wp-block-heading\">Skyddas av gift<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">&#8211; Det \u00e4r ett effektivt f\u00f6rsvar, n\u00e4r de \u00e4r tillr\u00e4ckligt giftiga s\u00e5 ratar betarna dem, s\u00e4ger Erik Selander.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"1260\" src=\"https:\/\/www.deepseareporter.com\/wp-content\/uploads\/2026\/11\/261101-alggift1-3404d6dd-a002nh-1280x1260.jpeg\" alt=\"en ung man i n\u00e4rbild tittar in i kameran\" class=\"wp-image-45800\" srcset=\"https:\/\/www.deepseareporter.com\/wp-content\/uploads\/2026\/11\/261101-alggift1-3404d6dd-a002nh-1280x1260.jpeg 1280w, https:\/\/www.deepseareporter.com\/wp-content\/uploads\/2026\/11\/261101-alggift1-3404d6dd-a002nh-720x709.jpeg 720w, https:\/\/www.deepseareporter.com\/wp-content\/uploads\/2026\/11\/261101-alggift1-3404d6dd-a002nh-768x756.jpeg 768w, https:\/\/www.deepseareporter.com\/wp-content\/uploads\/2026\/11\/261101-alggift1-3404d6dd-a002nh.jpeg 1298w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption class=\"wp-element-caption\">Foto: Privat<br>Erik Selander, universitetslektor i ekologi vid Lunds universitet.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Metoden att m\u00e4ta hoppkr\u00e4ftornas doft\u00e4mne f\u00f6r att f\u00f6rutsp\u00e5 utbrott av giftalger har i ett forskningssamarbete testats b\u00e5de i Gullmarsfjorden i Bohusl\u00e4n och i Montereybukten i Kalifornien.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I studien satte man ut sm\u00e5 provtagningsenheter som passivt ansamlar doft\u00e4mnena fr\u00e5n vattnet, men hoppkr\u00e4ftans doft ansamlas ocks\u00e5 i musslor. Eftersom prover regelbundet tas p\u00e5 musslor i de omr\u00e5den d\u00e4r livsmedelsf\u00f6retag odlar och fiskar musslor och ostron, bed\u00f6mer Erik Selander att m\u00e4tningarna relativt enkelt skulle kunna anpassas utan stora extrakostnader f\u00f6r att \u00e4ven f\u00e5 information om halten av doft\u00e4mne fr\u00e5n hoppkr\u00e4ftor.<\/p>\n\n\n\n<h2 id=\"h-framkallar-diarre\" class=\"wp-block-heading\">Framkallar diarr\u00e9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e4ttre giftprognoser skulle ha ett stort v\u00e4rde f\u00f6r fisk- och skaldjursindustrin, enligt Erik Selander. P\u00e5 v\u00e4stkusten f\u00f6rekommer utbrott av diarr\u00e9framkallande alggifter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Det finns alggifter som d\u00f6dar fisk ocks\u00e5, i fiskodlingar till exempel. Det skulle vara fantastiskt bra om man fick veta ett par veckor i f\u00f6rv\u00e4g att risken \u00e4r h\u00f6g, s\u00e5 att man kan vidta \u00e5tg\u00e4rder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hur luktar d\u00e5 hoppkr\u00e4ftor? Det \u00e4r inte en lukt som den m\u00e4nskliga n\u00e4san kan k\u00e4nna av, f\u00f6rklarar Erik Selander. \u00c4mnet finns bara i vattnet och dessutom i v\u00e4ldigt l\u00e5ga koncentrationer \u2013 men algerna k\u00e4nner av det direkt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lukten fr\u00e5n hoppkr\u00e4ftor kan anv\u00e4ndas i ett varningssystem f\u00f6r giftiga algblomningar.<\/p>\n<p>Metoden skulle kunna f\u00f6rvarna om utbrott upp till sju veckor i f\u00f6rv\u00e4g.<\/p>\n","protected":false},"author":4,"featured_media":45798,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[252,244,579,581],"tags":[574,306,5119],"class_list":["post-45797","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-forskning","category-klimat-och-miljo","category-ostersjon","category-vastkusten","tag-algblomning","tag-forskning","tag-hoppkraftan"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - 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