{"id":39631,"date":"2025-04-03T14:43:55","date_gmt":"2025-04-03T12:43:55","guid":{"rendered":"https:\/\/www.deepseareporter.com\/?p=39631"},"modified":"2025-08-19T10:19:50","modified_gmt":"2025-08-19T08:19:50","slug":"krislage-for-bottenhavet","status":"publish","type":"post","link":"https:\/\/www.deepseareporter.com\/sv\/krislage-for-bottenhavet\/","title":{"rendered":"Krisl\u00e4ge f\u00f6r Bottenhavet"},"content":{"rendered":"\n

Den fina v\u00e4v av v\u00e4xter och djur som h\u00e5ller havet i balans \u00e4r satt under h\u00e5rd press. Det visar analyser av 42 \u00e5rs data (1979 \u2013 2021) som SLU har gjort<\/a>. Och trenden \u00e4r dessutom ned\u00e5tg\u00e5ende, det blir konstant s\u00e4mre hela tiden.<\/strong><\/p>\n\n\n\n

Text: Lena Scherman<\/strong><\/p>\n\n\n\n

Forskarna har bland annat studerat v\u00e4xt- och djurplankton, fiskar, s\u00e4l och sm\u00e5 bottenlevande djur och genom det skapat en helhetsbild \u00f6ver hur ekosystemet ser ut, och har sett ut \u00f6ver tid, i Bottenhavet.<\/p>\n\n\n\n

\u201dTack vare denna l\u00e5nga tidsserie har vi kunnat f\u00e5 en helhetsbild av hur n\u00e4ringsv\u00e4ven har f\u00f6r\u00e4ndrats \u00f6ver tid i f\u00f6rh\u00e5llande till b\u00e5de naturliga faktorer, som salthalt och klimatf\u00f6r\u00e4ndringar, och m\u00e4nsklig p\u00e5verkan som fiske och n\u00e4rings\u00e4mnen i vattnet\u201d, s\u00e4ger Carolyn Faithfull p\u00e5 SLU.<\/p>\n\n\n\n

Det \u00e4r det \u00f6kade fisket och de stigande fosforhalterna som f\u00f6rsvagat n\u00e4ringsv\u00e4ven, enligt studien. Och det \u00e4r f\u00f6r\u00e4ndringar som oroar eftersom en f\u00f6rsvagad n\u00e4ringsv\u00e4v bland annat har sv\u00e5rare att st\u00e5 emot f\u00f6r\u00e4ndringar i klimatet.<\/p>\n\n\n\n

Str\u00f6mmingen har blivit mindre och f\u00e4rre, men studien visar ocks\u00e5 att fosforhalterna har fortsatt att stiga I Bottenhavet de senaste 15 \u00e5ren. De \u00e5tg\u00e4rder som gjorts f\u00f6r att minska n\u00e4ringsl\u00e4ckaget fr\u00e5n land har uppenbart inte hj\u00e4lpt.<\/p>\n\n\n\n

Forskarna kr\u00e4ver nu snabba insatser f\u00f6r att minska fisketrycket och s\u00e4nka forsforniv\u00e5erna f\u00f6r att bromsa utvecklingen och f\u00f6rhindra att tillst\u00e5ndet f\u00f6rs\u00e4mras \u00e4nd\u00e5 mer.<\/p>\n\n\n\n

L\u00e4s den vetenskapliga artikeln Temporal changes in the Bothnian Sea food web reveal a deterioration linked to fishing pressure and recent eutrophication<\/a> i ICES Journal of Marine Science.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Om Deep Sea Reporter: <\/strong>V\u00e5r ambition \u00e4r att granska och skildra fr\u00e5gor som r\u00f6r havet och det liv som finns under ytan. Vi verkar i allm\u00e4nhetens tj\u00e4nst och drivs sj\u00e4lvst\u00e4ndigt i f\u00f6rh\u00e5llande till politiska, kommersiella och andra intressen i samh\u00e4llet.<\/sup><\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Den fina v\u00e4v av v\u00e4xter och djur som h\u00e5ller havet i balans \u00e4r satt under h\u00e5rd press. Det visar analyser av 42 \u00e5rs data (1979 \u2013 2021) som SLU har gjort. Och trenden \u00e4r dessutom ned\u00e5tg\u00e5ende, det blir konstant s\u00e4mre hela tiden.<\/p>\n","protected":false},"author":4,"featured_media":39632,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[579],"tags":[2467,950],"class_list":["post-39631","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ostersjon","tag-bottenhavet","tag-slu"],"acf":[],"yoast_head":"\nKrisl\u00e4ge f\u00f6r Bottenhavet - Deep Sea Reporter<\/title>\n<meta name=\"description\" content=\"Den fina v\u00e4v av v\u00e4xter och djur som h\u00e5ller havet i balans \u00e4r satt under h\u00e5rd press. Det visar analyser av 42 \u00e5rs data (1979 \u2013 2021) som SLU har gjort. 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