{"id":72408,"date":"2025-11-04T17:23:12","date_gmt":"2025-11-04T17:23:12","guid":{"rendered":"https:\/\/www.europesays.com\/se\/72408\/"},"modified":"2025-11-04T17:23:12","modified_gmt":"2025-11-04T17:23:12","slug":"spackhuggare-har-utvecklat-metod-for-att-jaga-vithajar-natursidan","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/se\/72408\/","title":{"rendered":"Sp\u00e4ckhuggare har utvecklat metod f\u00f6r att jaga vithajar \u2013 Natursidan"},"content":{"rendered":"<p>Det \u00e4r inte f\u00f6rsta g\u00e5ngen det skildrats hur sp\u00e4ckhuggare jagar vithajar. I <a href=\"https:\/\/www.theguardian.com\/environment\/2025\/jan\/29\/orca-whales-hunting-great-white-sharks-australia-study\" rel=\"nofollow noopener\" target=\"_blank\">Sydafrika och Australien<\/a> kan de ta fullvuxna vithajar, men en flock utanf\u00f6r Kalifornien har riktat in sig p\u00e5 unga vithajar, som \u00e4nnu inte l\u00e4rt sig komma undan sp\u00e4ckhuggarna p\u00e5 samma s\u00e4tt som \u00e4ldre individer har chans att g\u00f6ra. <\/p>\n<p>\n\t\tAnnons\t\t\t<\/p>\n<p>\t\t<a href=\"https:\/\/www.eaglephotography.se\" data-ad-target=\"link\" class=\"Ad-content\" rel=\"sponsored nofollow noopener\" target=\"_blank\"><\/p>\n<p>\t\t\t\t<img alt=\"Annons\" class=\"MediaWrapper-content Ad-image\" src=\"https:\/\/www.europesays.com\/se\/wp-content\/uploads\/2025\/11\/image0.jpeg\" data-lazy-load-target=\"content\" width=\"468\" height=\"312\" loading=\"lazy\" decoding=\"async\" fetchpriority=\"auto\"\/><\/p>\n<p>\t\t<\/a><\/p>\n<p>\u2013\u00a0Jag tror att sp\u00e4ckhuggare som \u00e4ter broskfiskar \u2013 hajar och rockor \u2013 skulle kunna \u00e4ta en vithaj, om de ville, var som helst de letar efter en. Detta beteende \u00e4r ett bevis p\u00e5 sp\u00e4ckhuggarnas avancerade intelligens, strategiska t\u00e4nkande och sofistikerade sociala inl\u00e4rning, d\u00e5 jaktteknikerna f\u00f6rmedlas genom generationer inom deras flockar, s\u00e4ger marinbiologen Erick Higuera Rivas, projektledare p\u00e5 Conexiones Terramar och Pelagic Life samt huvudf\u00f6rfattare till artikeln i Frontiers in Marine Science.<\/p>\n<p>V\u00e4nder hajen uppochned<\/p>\n<p>Under rutin\u00f6vervakning av sp\u00e4ckhuggarna kunde forskarna f\u00f6lja tv\u00e5 jakter d\u00e4r tre vithajar d\u00f6dades. I det ena fallet drev fem sp\u00e4ckhuggare upp vithajen mot ytan och samarbetade f\u00f6r att f\u00e5 den uppochned. V\u00e4l p\u00e5 rygg blir hajar n\u00e4stan paralyserade och f\u00f6rsvarsl\u00f6sa och sp\u00e4ckhuggarna passade d\u00e5 p\u00e5 att attackera. De b\u00f6rjade med att \u00e4ta upp den energirika levern medan de simmade ner med hajen under ytan. D\u00e4refter \u00e5ts bara delar av hajen upp.<\/p>\n<p>\u2013\u00a0Det h\u00e4r \u00e4r f\u00f6rsta g\u00e5ngen vi ser sp\u00e4ckhuggare upprepade g\u00e5nger rikta in sig p\u00e5 unga vita hajar. Vuxna vita hajar reagerar snabbt p\u00e5 jagande sp\u00e4ckhuggare, de l\u00e4mnar helt sina s\u00e4songsbetonade samlingsomr\u00e5den och \u00e5terv\u00e4nder inte p\u00e5 m\u00e5nader. Men dessa unga vita hajar kan vara oerfarna n\u00e4r det g\u00e4ller sp\u00e4ckhuggare. Vi vet helt enkelt inte \u00e4n om vita hajars antipredatorbeteenden \u00e4r instinktiva eller om de m\u00e5ste l\u00e4ras in, s\u00e4ger Salvador Jorgensen vid California State University, en av artikelf\u00f6rfattarna.<\/p>\n<p>Flock som specialiserat sig p\u00e5 hajar<\/p>\n<p>Sp\u00e4ckhuggare \u00e4ter allt fr\u00e5n sk\u00f6dpaddor och s\u00e4lar till valar och fiskar. Flocken som jagade unga vithajar utanf\u00f6r Kalifornien kallas Moctezumas flock och har tidigare setts jaga rockor, tjurhajar och valhajar. <\/p>\n<p>\u00c4ven jakten p\u00e5 valhajar, v\u00e4rldens st\u00f6rsta fisk, inneb\u00e4r en specifik jaktmetod som <a href=\"https:\/\/www.frontiersin.org\/news\/2024\/11\/29\/killer-whale-special-skills-hunt-whale-sharks\" rel=\"nofollow noopener\" target=\"_blank\">forskarna observerat<\/a>. Precis som med vithajarna lyckas flocken v\u00e4nda valhajen upp och ned. D\u00e4refter attackeras  b\u00e4cken-omr\u00e5det p\u00e5 valhajen vilket f\u00e5r den att f\u00f6rbl\u00f6da och sp\u00e4ckhuggarna kommer \u00e5t levern. Flocken tycks ha specialiserat sig p\u00e5 att jaga hajar och beteendet har iakttagits i \u00e5tminstone sju \u00e5rs tid.<\/p>\n<p>\n\t\tAnnons\t\t\t<\/p>\n<p>\t\t<a href=\"https:\/\/www.eaglephotography.se\" data-ad-target=\"link\" class=\"Ad-content\" rel=\"sponsored nofollow noopener\" target=\"_blank\"><\/p>\n<p>\t\t\t\t<img alt=\"Annons\" class=\"MediaWrapper-content Ad-image\" src=\"https:\/\/www.europesays.com\/se\/wp-content\/uploads\/2025\/11\/image0.jpeg\" data-lazy-load-target=\"content\" width=\"468\" height=\"312\" loading=\"lazy\" decoding=\"async\" fetchpriority=\"auto\"\/><\/p>\n<p>\t\t<\/a><\/p>\n<p>Video som visar sp\u00e4ckhuggare som attackerar vithaj<\/p>\n<p>\t\t\t\t\t\t\t\t\t\tL\u00e4s mer om sp\u00e4ckhuggare<\/p>\n<p>K\u00e4llor: <a href=\"https:\/\/www.frontiersin.org\/news\/2025\/11\/03\/orcas-killing-young-great-white-sharks-by-flipping-upside-down-frontiers-marine-science\" rel=\"nofollow noopener\" target=\"_blank\">Frontiers<\/a> och <a href=\"https:\/\/www.frontiersin.org\/journals\/marine-science\/articles\/10.3389\/fmars.2025.1667683\/full\" rel=\"nofollow noopener\" target=\"_blank\">Forskningsrapport<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Det \u00e4r inte f\u00f6rsta g\u00e5ngen det skildrats hur sp\u00e4ckhuggare jagar vithajar. I Sydafrika och Australien kan de ta&hellip;\n","protected":false},"author":2,"featured_media":72409,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[22,23,26,27,17,21,24,25,28,29,15,16,18,34,31,33,32,30,19,20,51,52,53,54],"class_list":{"0":"post-72408","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-varlden","8":"tag-breaking-news","9":"tag-breakingnews","10":"tag-featured-news","11":"tag-featurednews","12":"tag-headlines","13":"tag-huvudnyheter","14":"tag-latest-news","15":"tag-latestnews","16":"tag-main-news","17":"tag-mainnews","18":"tag-news","19":"tag-nyheter","20":"tag-rubriker","21":"tag-se","22":"tag-svenska","23":"tag-sverige","24":"tag-sweden","25":"tag-swedish","26":"tag-top-stories","27":"tag-topstories","28":"tag-varlden","29":"tag-world","30":"tag-world-news","31":"tag-worldnews"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@se\/115492592324326819","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts\/72408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/comments?post=72408"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/posts\/72408\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/media\/72409"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/media?parent=72408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/categories?post=72408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/se\/wp-json\/wp\/v2\/tags?post=72408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}