{"id":16605,"date":"2025-10-14T09:36:15","date_gmt":"2025-10-14T09:36:15","guid":{"rendered":"https:\/\/ingemar.alenas.se\/?p=16605"},"modified":"2025-10-14T10:06:37","modified_gmt":"2025-10-14T10:06:37","slug":"fiskkamera-vid-herting-registerade-dubbelgangare","status":"publish","type":"post","link":"https:\/\/ingemar.alenas.se\/?p=16605","title":{"rendered":"Fiskkamera vid Herting registerade &#8221;dubbelg\u00e5ngare&#8221;."},"content":{"rendered":"\n<p><strong>2025-10-14 Dokumentation av fiskvandringen vid Herting \u00e4r viktig f\u00f6r information som g\u00f6r att vi vid behov kan f\u00f6rvalta fiskbest\u00e5nden med r\u00e4tt \u00e5tg\u00e4rder.<\/strong><\/p>\n\n\n\n<p>\u00c4tran \u00e4r s\u00e4rskilt intressant d\u00e5 vi har Sveriges st\u00f6rsta dokumenterade best\u00e5nd av vild Atlantlax, havsnejon\u00f6ga och majfisk. Kameran kan ocks\u00e5 ge viktig information om enskilda fiskar som denna lekf\u00e4rgade laxhane.<\/p>\n\n\n\n<p>Han passerade upp genom kameran m\u00e5ndagen den 13 oktober klockan 09:31. Ett dygn senare tisdagen den 14 oktober klockan 08:41 passerade han \u00e5terigen uppstr\u00f6ms genom kameran. D\u00e5 han inte passerat nedstr\u00f6ms genom kameran har han passerat nedstr\u00f6ms \u00f6ver betongarmarna utan att ha blivit filmad.  Denna &#8221;dubbelg\u00e5ngare&#8221; har allts\u00e5 blivit registrerad tv\u00e5 g\u00e5nger vilket troligen \u00e4r extremt ovanligt.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2025\/10\/Laxhane-Herting-2025-10-13-14.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"798\" height=\"1024\" src=\"https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2025\/10\/Laxhane-Herting-2025-10-13-14-798x1024.jpg\" alt=\"\" class=\"wp-image-16606\" srcset=\"https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2025\/10\/Laxhane-Herting-2025-10-13-14-798x1024.jpg 798w, https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2025\/10\/Laxhane-Herting-2025-10-13-14-234x300.jpg 234w, https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2025\/10\/Laxhane-Herting-2025-10-13-14-768x986.jpg 768w, https:\/\/ingemar.alenas.se\/wp-content\/uploads\/2025\/10\/Laxhane-Herting-2025-10-13-14.jpg 1079w\" sizes=\"auto, (max-width: 798px) 100vw, 798px\" \/><\/a><figcaption class=\"wp-element-caption\">M\u00f6nstret p\u00e5 fisken visar att det \u00e4r samma laxhane som passerat tv\u00e5 g\u00e5nger genom fiskkameran vid Herting.<\/figcaption><\/figure>\n\n\n\n<p>Laxhanen \u00e4r ovanlig p\u00e5 mer \u00e4n ett s\u00e4tt. Han \u00e4r dessutom en &#8221;odlad lax&#8221; som inte f\u00f6tts p\u00e5 naturlig v\u00e4g i \u00c4tran. D\u00e4rom skvallrar den avklippta fettfenan. Detta g\u00f6rs bl.a. p\u00e5 laxar odlade av Statkraft vid fiskodlingen i Laholm.<\/p>\n\n\n\n<p>\u00c4tranlaxen \u00e4r genetiskt unik och det kan bli allvarliga konsekvenser om det blir f\u00f6r stor andel &#8221;fr\u00e4mmande gener&#8221; i ett vildlaxbest\u00e5nd. Den fr\u00e4mmande inblandningen av lax \u00e4r \u00e4n s\u00e5 l\u00e4nge relativt l\u00e5g i \u00c4tran vilket \u00e4r viktigt f\u00f6r bevarande av \u00c4tranlaxens unika egenskaper.<\/p>\n\n\n\n<p>Fettfenan har ocks\u00e5 visat sig ha en viktig funktion f\u00f6r laxfiskar. Denna &#8221;stympning&#8221; av fisken har ber\u00f6vat laxhanen fr\u00e5n dessa egenskaper.<\/p>\n\n\n\n<p>L\u00e4s mer om &#8221;Mysteriet bakom fettfenan&#8221; p\u00e5 SVT <a href=\"https:\/\/www.svt.se\/nyheter\/vetenskap\/mysteriet-bakom-fettfenan-avslojas\">h\u00e4r.<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>2025-10-14 Dokumentation av fiskvandringen vid Herting \u00e4r viktig f\u00f6r information som g\u00f6r att vi vid behov kan f\u00f6rvalta fiskbest\u00e5nden med r\u00e4tt \u00e5tg\u00e4rder. \u00c4tran \u00e4r s\u00e4rskilt intressant d\u00e5 vi har Sveriges st\u00f6rsta dokumenterade best\u00e5nd av vild Atlantlax, havsnejon\u00f6ga och majfisk. Kameran kan ocks\u00e5 ge viktig information om enskilda fiskar som denna lekf\u00e4rgade laxhane. Han passerade upp &hellip; <a href=\"https:\/\/ingemar.alenas.se\/?p=16605\" class=\"more-link\">Forts\u00e4tt l\u00e4sa <span class=\"screen-reader-text\">Fiskkamera vid Herting registerade &#8221;dubbelg\u00e5ngare&#8221;.<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[2,3,1],"tags":[],"class_list":["post-16605","post","type-post","status-publish","format-standard","hentry","category-naturnytt","category-vattenblank","category-laxens-ar-2019"],"_links":{"self":[{"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/posts\/16605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16605"}],"version-history":[{"count":2,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/posts\/16605\/revisions"}],"predecessor-version":[{"id":16609,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=\/wp\/v2\/posts\/16605\/revisions\/16609"}],"wp:attachment":[{"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ingemar.alenas.se\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}