{"id":1647,"date":"2014-05-18T11:26:45","date_gmt":"2014-05-18T11:26:45","guid":{"rendered":"http:\/\/www.123fakta.com\/da\/?p=1647"},"modified":"2026-03-19T10:38:27","modified_gmt":"2026-03-19T10:38:27","slug":"fakta-om-guldfiskar","status":"publish","type":"post","link":"https:\/\/www.123fakta.com\/se\/facts-about-goldfish","title":{"rendered":"Fakta om guldfiskar"},"content":{"rendered":"<ol>\n<li><strong>\u00d6ppna \u00f6gonen:<\/strong>\u00a0Guldfiskar kan inte blunda eftersom de inte har n\u00e5gra \u00f6gonlock<\/li>\n<li><strong>F\u00e4rg:<\/strong>\u00a0Om du f\u00f6rvarar en guldfisk i ett m\u00f6rkt rum kommer den att f\u00f6rlora sin f\u00e4rg. P\u00e5 samma s\u00e4tt kommer guldfiskar som lever utomhus vanligtvis att vara mer f\u00e4rgstarka \u00e4n guldfiskar som lever inomhus (eftersom de f\u00e5r mer dagsljus)<\/li>\n<li><strong>Minne:<\/strong> Guldfiskar kan minnas i minst 3 m\u00e5nader; inte de beryktade 2-3 sekunderna som de \u00e4r \u00f6k\u00e4nda f\u00f6r (du kan l\u00e4sa mer om guldfiskars minne i sista avsnittet p\u00e5 den h\u00e4r sidan)<\/li>\n<li class=\"no-mobile\"><strong>Intelligens:<\/strong>\u00a0Guldfiskar kan skilja mellan olika former, f\u00e4rger och ljud, och kan tr\u00e4nas att k\u00e4nna igen och reagera p\u00e5 vissa ljussignaler. De kan till och med l\u00e4ra sig trick<\/li>\n<li><strong>Urin:<\/strong>\u00a0Guldfiskar (och andra fiskar) urinerar inte som d\u00e4ggdjur g\u00f6r. Ist\u00e4llet uts\u00f6ndrar de ammoniak i vattnet via sina g\u00e4lar<\/li>\n<li><strong>Sikt:<\/strong>\u00a0Guldfiskar kan se infrar\u00f6d str\u00e5lning och ultraviolett ljus (vilket m\u00e4nniskor och de flesta andra djur inte kan)<\/li>\n<li><strong>Ingen mage:<\/strong>\u00a0Guldfiskar har inga magar och b\u00f6r d\u00e4rf\u00f6r matas med flera sm\u00e5 portioner snarare \u00e4n en stor<\/li>\n<li><strong>\u00c4ldsta guldfisken:<\/strong>\u00a0V\u00e4rldens \u00e4ldsta guldfisk blev 45 \u00e5r gammal och dog 2005. Fisken levde hos familjen Evans i Bradninch, Devon i Storbritannien och vanns p\u00e5 en marknad 1960<\/li>\n<li><strong>Kallt vatten:<\/strong>\u00a0Guldfiskar s\u00e4nker sin \u00e4mnesoms\u00e4ttning avsev\u00e4rt i kallt vatten, vilket g\u00f6r att de praktiskt taget g\u00e5r i ide. Detta inneb\u00e4r bland annat att de kan \u00f6verleva i mycket l\u00e5ga vattentemperaturer (inklusive sj\u00f6ar som har frusit under vintern)<\/li>\n<li><strong>Storlek:<\/strong>\u00a0Guldfiskars tillv\u00e4xt h\u00e4mmas kraftigt av deras sm\u00e5 akvariestorlekar, felaktig utfodring och d\u00e5lig vattenkvalitet. D\u00e4rf\u00f6r kan guldfiskar bli mycket st\u00f6rre \u00e4n vad vi \u00e4r vana vid; v\u00e4rldens l\u00e4ngsta guldfisk \u00e4r 47,4 cm l\u00e5ng och lever med sin \u00e4gare Joris Gijsbers i Nederl\u00e4nderna<\/li>\n<\/ol>\n<figure id=\"attachment_7520\" aria-describedby=\"caption-attachment-7520\" style=\"width: 990px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7520 size-full\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-fakta-2.jpg\" alt=\"Fakta: &quot;Bubble eye&quot; (Carassius auratus auratus auratus) \u00e4r bara en av m\u00e5nga f\u00f6r\u00e4dlade guldfiskarter\" width=\"1000\" height=\"750\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-fakta-2.jpg 1000w, https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-fakta-2-300x225.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-fakta-2-768x576.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-fakta-2-16x12.jpg 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-7520\" class=\"wp-caption-text\">Tillskrivning: Angie Torres - Wikipedia.org<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Fakta: Det finns mer \u00e4n 300 avelsarter av guldfisk, varav de allra flesta h\u00e4rstammar fr\u00e5n Kina. Bilden visar \"bubbel\u00f6gat\" (Carassius auratus auratus auratus)<\/strong><\/em><\/p>\n<h2>\u00d6vrig fakta om guldfisk<\/h2>\n<ul>\n<li><strong>Historia som husdjur:<\/strong>\u00a0Guldfiskar h\u00f6lls ursprungligen som husdjur i gamla kinesiska dynastier. Det var inte f\u00f6rr\u00e4n i b\u00f6rjan av 1500-talet som de blev popul\u00e4ra utanf\u00f6r Kina. \u00c5r 1603 n\u00e5dde de Japan, 1611 Europa och omkring 1850 USA (det var inte f\u00f6rr\u00e4n 1853 som man uppt\u00e4ckte vattenfiltrering f\u00f6r akvarier, vilket gjorde det m\u00f6jligt att h\u00e5lla fiskar i akvarier inomhus). Guldfiskar har allts\u00e5 h\u00e5llits som s\u00e4llskapsdjur i minst 2000 \u00e5r!<\/li>\n<li><strong>Mat:<\/strong>\u00a0Guldfiskar \u00e4r all\u00e4tare och \u00e4ter v\u00e4xter, insekter, sm\u00e5 leddjur och \u00e4nnu mindre <a href=\"https:\/\/www.123fakta.com\/se\/fakta-om-fisk\/\">fisk<\/a><\/li>\n<li><strong>Touch:<\/strong>\u00a0R\u00f6r aldrig en guldfisk eftersom det kan skada slemhinnan som naturligt skyddar dess fj\u00e4ll fr\u00e5n infektioner<\/li>\n<li><strong>Ljud och buller:<\/strong>\u00a0Guldfiskar har h\u00f6rsel och blir stressade av h\u00f6ga ljud och vibrationer i vattnet. D\u00e4rf\u00f6r rekommenderar vi inte att du knackar med fingrarna p\u00e5 akvariet (eller g\u00f6r ljud i allm\u00e4nhet) f\u00f6r att aktivera guldfiskarna inuti<\/li>\n<li><strong>\u00d6verlevnad:<\/strong>\u00a0\u00c4ven om m\u00e5nga guldfiskar d\u00f6r relativt snabbt p\u00e5 grund av felaktig sk\u00f6tsel och hantering av sina \u00e4gare, kan guldfiskar \u00f6verleva i relativt d\u00e5liga levnadsf\u00f6rh\u00e5llanden. Ett exempel p\u00e5 detta \u00e4r guldfisken Smokey, som hittades vid liv 2013 i ett hus som hade brunnit ner 2011 i Essex i Storbritannien. Guldfisken hade \u00f6verlevt i n\u00e5gra centimeter vatten i en liten t\u00e4ckt tr\u00e4dg\u00e5rdsdamm utan tillg\u00e5ng till f\u00e4rskvatten, mat eller dagsljus i 2 \u00e5r<\/li>\n<\/ul>\n<figure id=\"attachment_7521\" aria-describedby=\"caption-attachment-7521\" style=\"width: 990px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7521\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-oranda-2.jpg\" alt=\"Fakta: Guldfiskar kan vara st\u00f6rre \u00e4n vad de flesta tror\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-oranda-2.jpg 1000w, https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-oranda-2-300x200.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-oranda-2-768x512.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/guldfisk-oranda-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-7521\" class=\"wp-caption-text\">Tillskrivning: Michelle Jo - Wikipedia.org<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Guldfiskar kan bli st\u00f6rre \u00e4n vad de flesta tror. Den st\u00f6rsta guldfisken idag \u00e4r 47,4 cm l\u00e5ng och lever i Nederl\u00e4nderna. Bilden visar en stor Oranda-guldfisk fr\u00e5n England<\/strong><\/em><\/p>\n<h2>Vilka \u00e4r guldfiskarnas fiender?<\/h2>\n<p>Guldfiskar har en m\u00e4ngd olika naturliga fiender och hot, b\u00e5de i naturen och i hemakvarier:<\/p>\n<ul>\n<li><strong>Rovfiskar<\/strong>: St\u00f6rre fiskar som koi, havskatt och vissa ciklidarter kan attackera och \u00e4ta guldfiskar, s\u00e4rskilt om de h\u00e5lls i samma damm eller akvarium.<\/li>\n<li><strong>F\u00e5glar<\/strong>: F\u00e5glar som h\u00e4grar, kungsfiskare och fiskm\u00e5sar ger sig ofta p\u00e5 guldfiskar, s\u00e4rskilt i utomhusdammar.<\/li>\n<li><strong>D\u00e4ggdjur<\/strong>: Tv\u00e4ttbj\u00f6rnar, uttrar och till och med vissa huskatter kan utg\u00f6ra ett hot mot guldfiskar i vattenanl\u00e4ggningar utomhus.<\/li>\n<li><strong>Amfibier<\/strong>: Stora grodor och paddor kan f\u00f6rs\u00f6ka \u00e4ta mindre guldfiskar, s\u00e4rskilt om fisken lever i en damm.<\/li>\n<li><strong>Parasiter och sjukdomar<\/strong>: Guldfiskar \u00e4r mottagliga f\u00f6r olika parasiter (t.ex. ich eller ankarmask) och sjukdomar (t.ex. fenr\u00f6ta och simbl\u00e5sesjukdom) som kan skada eller d\u00f6da dem.<\/li>\n<li><strong>M\u00e4nskliga faktorer<\/strong>: D\u00e5lig vattenkvalitet, \u00f6verutfodring och felaktigt tankunderh\u00e5ll kan ocks\u00e5 vara fiender till guldfisk i f\u00e5ngenskap, vilket leder till stress och h\u00e4lsoproblem.<\/li>\n<\/ul>\n<p>Var och en av dessa faktorer utg\u00f6r ett betydande hot mot guldfiskars h\u00e4lsa och v\u00e4lbefinnande i olika milj\u00f6er.<\/p>\n<h2>Fakta om guldfiskens minne<\/h2>\n<p>En popul\u00e4r f\u00f6rest\u00e4llning \u00e4r att guldfiskar har en minneskapacitet p\u00e5 endast tre sekunder. Denna myt har f\u00e5tt stor spridning i popul\u00e4rkulturen och f\u00e5tt m\u00e4nniskor att tro att dessa sm\u00e5 vattenlevande varelser har extremt kort uppm\u00e4rksamhet. Vetenskapliga studier har dock visat att s\u00e5 inte \u00e4r fallet.<\/p>\n<p>Guldfiskar \u00e4r mycket mer intelligenta \u00e4n de verkar, med en minneskapacitet som kan vara i m\u00e5nader, inte sekunder. Forskning har visat att guldfiskar kan l\u00e4ra sig och h\u00e5lla kvar information under l\u00e5nga perioder. I experiment har de tr\u00e4nats att associera vissa ljud eller f\u00e4rger med mattider, och det har visat sig att de minns dessa signaler l\u00e5ngt efter den f\u00f6rsta tr\u00e4ningsperioden.<\/p>\n<p>Faktum \u00e4r att guldfiskar har visat f\u00f6rm\u00e5gor som att k\u00e4nna igen sina \u00e4gare och komma ih\u00e5g v\u00e4gar i komplexa labyrinter. Dessa kognitiva f\u00f6rm\u00e5gor \u00e4r ett bevis p\u00e5 deras \u00f6verraskande intelligens och inl\u00e4rningskapacitet.<\/p>\n<p>S\u00e5 \u00e4ven om myten om tresekundersminnet lever kvar, visar vetenskapen att guldfiskar \u00e4r mycket mer kapabla \u00e4n vad man vanligtvis tror.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u00d6ppna \u00f6gon: Guldfiskar kan inte blunda eftersom de inte har n\u00e5gra \u00f6gonlock F\u00e4rg: Om du h\u00e5ller en guldfisk i ett m\u00f6rkt rum kommer den att f\u00f6rlora sin f\u00e4rg. P\u00e5 samma s\u00e4tt \u00e4r guldfiskar som lever utomhus vanligtvis mer f\u00e4rgstarka \u00e4n guldfiskar som lever inomhus (eftersom de f\u00e5r mer dagsljus) Minne: Guldfiskar kan minnas i minst 3 m\u00e5nader; inte ... <a title=\"Fakta om guldfiskar\" class=\"read-more\" href=\"https:\/\/www.123fakta.com\/se\/facts-about-goldfish\" aria-label=\"L\u00e4s mer om Fakta om guldfiskar\">L\u00e4s mer<\/a><\/p>","protected":false},"author":1,"featured_media":7522,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[67,74],"tags":[120],"class_list":["post-1647","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-animals","category-aquatic-animals","tag-adsense"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Goldfish - 16 fun facts about goldfish<\/title>\n<meta name=\"description\" content=\"Fact: Goldfish have a memory of at least 3 months. 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