{"id":28030,"date":"2023-06-15T11:45:04","date_gmt":"2023-06-15T09:45:04","guid":{"rendered":"https:\/\/www.deepseareporter.com\/?p=28030"},"modified":"2023-10-25T13:27:04","modified_gmt":"2023-10-25T11:27:04","slug":"invasiva-arter-del-6-sargassosnarja","status":"publish","type":"post","link":"https:\/\/www.deepseareporter.com\/sv\/invasiva-arter-del-6-sargassosnarja\/","title":{"rendered":"Invasiva arter: Del 6 &#8211; Sargassosn\u00e4rja"},"content":{"rendered":"\n<p><strong>Sargassosn\u00e4rja \u00e4r en brunalg som hittades f\u00f6rsta g\u00e5ngen 1985 i norra Bohusl\u00e4n. Sedan dess har den snabbt blivit vanlig p\u00e5 den svenska v\u00e4stkusten. Under sommarm\u00e5naderna p\u00e5minner den utseendem\u00e4ssigt, en hel del om den vanliga kn\u00f6lt\u00e5ngen. Med m\u00e5nga sm\u00e5 flytbl\u00e5sor som \u00e4r ett par millimeter i diameter. <\/strong><\/p>\n\n\n\n<p>Till Europa kom sargassosn\u00e4rjan med importerade, levande j\u00e4tteostron fr\u00e5n Japan. Sargassosn\u00e4rjan kan bli tv\u00e5 meter l\u00e5ng och trivs b\u00e4st p\u00e5 grunt vatten, ner till tio meters djup. Det speciella med den, som skiljer den fr\u00e5n v\u00e5r kn\u00f6lt\u00e5ng, \u00e4r att den \u00e4r sj\u00e4lvbefruktande. Det beh\u00f6vs allts\u00e5 bara en enda planta f\u00f6r att det ska bli fler plantor. <\/p>\n\n\n\n<p>N\u00e5gon g\u00e5ng i november b\u00f6rjar det v\u00e4xa ut skott p\u00e5 plantan. Efter n\u00e5got \u00e5r sl\u00e4pper skotten taget och driver iv\u00e4g med havsstr\u00f6mmarna f\u00f6r att sl\u00e5 sig ner n\u00e5gon annan stans. Algen v\u00e4xer fort och blir snabbt b\u00e5de t\u00e4t och h\u00f6g vilket g\u00f6r att den skuggar bottnarna och konkurrerar ut andra t\u00e5ngarter och sj\u00f6gr\u00e4s som beh\u00f6ver solljus f\u00f6r att leva. Det finns \u00e4nd\u00e5 en positiv sida med sargassosn\u00e4rjan. Den kan, n\u00e4r den v\u00e4xer till p\u00e5 kala sand- och mjukbottnar bli ett skydd f\u00f6r olika slags marina djur. P\u00e5 s\u00e5 s\u00e4tt kan nya ekosystem bildas.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sargassosn\u00e4rja \u00e4r en brunalg som hittades f\u00f6rsta g\u00e5ngen 1985 i norra Bohusl\u00e4n. Sedan dess har den snabbt blivit vanlig p\u00e5 den svenska v\u00e4stkusten. Under sommarm\u00e5naderna p\u00e5minner den utseendem\u00e4ssigt, en hel del om den vanliga kn\u00f6lt\u00e5ngen. <\/p>\n","protected":false},"author":3,"featured_media":29200,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[244],"tags":[867,1300,1393,349],"class_list":["post-28030","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-klimat-och-miljo","tag-invasiva-arter","tag-klimat-miljo","tag-sargassosnarja","tag-vastkusten"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Invasiva arter: Del 6 - Sargassosn\u00e4rja - Deep Sea Reporter<\/title>\n<meta name=\"description\" content=\"Sargassosn\u00e4rja \u00e4r en brunalg som hittades f\u00f6rsta g\u00e5ngen 1985 i norra Bohusl\u00e4n. 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