{"id":1642,"date":"2014-05-18T10:59:53","date_gmt":"2014-05-18T10:59:53","guid":{"rendered":"http:\/\/www.123fakta.com\/da\/?p=1642"},"modified":"2026-03-24T16:26:11","modified_gmt":"2026-03-24T16:26:11","slug":"fakta-om-fisk","status":"publish","type":"post","link":"https:\/\/www.123fakta.com\/nb\/facts-about-fish","title":{"rendered":"Fakta om fisk"},"content":{"rendered":"<ol>\n<li><strong>Morsomt navn:<\/strong>\u00a0Det finnes en fiskeart som kalles \"slippery dick\" (Halichoeres bivittatus).<\/li>\n<li><strong>Sharks:<\/strong>\u00a0<a href=\"https:\/\/www.123fakta.com\/nb\/fakta-om-haier\/\">Haier<\/a> dreper 12 mennesker i \u00e5ret. Mennesker dreper 11 417 haier i timen.<\/li>\n<li><strong>Kj\u00f8nn:<\/strong>\u00a0Mange fiskearter skifter kj\u00f8nn i l\u00f8pet av livet<\/li>\n<li><strong>Jeg skal ut og sv\u00f8mme:<\/strong>\u00a0Noen fisk - som haier - har ingen luftbl\u00e6re og m\u00e5 derfor sv\u00f8mme for \u00e5 unng\u00e5 \u00e5 synke til bunns.<\/li>\n<li><strong>Ingen urin:<\/strong>\u00a0Fisk urinerer (tisser) ikke slik pattedyr gj\u00f8r, men skiller ut ammoniakk i vannet via gjellene.<\/li>\n<li><strong>Smakssans:<\/strong>\u00a0De fleste fisk kan smake uten \u00e5 \u00e5pne munnen<\/li>\n<li><strong>Giftig pinnsvinfisk:<\/strong>\u00a0\u00c9n pinnsvinfisk inneholder nok gift til \u00e5 drepe 30 mennesker.<\/li>\n<li><strong>Leppestift:<\/strong>\u00a0Noen typer leppestift inneholder fiskeskjell (spesielt de som gj\u00f8r leppene blanke eller glitrende).<\/li>\n<li><strong>Sidelinjeorganet:<\/strong>\u00a0Fisk har et spesielt organ som kalles \"sidelinjeorganet\" (eller \"sidelinjen\"), som fungerer p\u00e5 samme m\u00e5te som en radar og hjelper dem med \u00e5 finne veien i m\u00f8rkt eller gj\u00f8rmete vann. Det er ogs\u00e5 sidelinjeorganet som s\u00f8rger for at fisk ikke kolliderer n\u00e5r de for eksempel sv\u00f8mmer i stimer.<\/li>\n<li><strong>Eksistens:<\/strong>\u00a0Fisk har eksistert p\u00e5 jorden i mer enn 450 millioner \u00e5r, og de var der lenge f\u00f8r vi ble f\u00f8dt. <a href=\"https:\/\/www.123fakta.com\/nb\/fakta-om-dinosaurer\/\">dinosaurer<\/a> ankom. Pattedyr har bare eksistert p\u00e5 jorden i rundt 200 millioner \u00e5r.<\/li>\n<\/ol>\n<figure id=\"attachment_7524\" aria-describedby=\"caption-attachment-7524\" style=\"width: 990px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7524\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/lungefisk-fakta-2.jpg\" alt=\"Fakta: Afrikansk lungefisk kan leve opptil 2 \u00e5r p\u00e5 land.\" width=\"1000\" height=\"750\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/lungefisk-fakta-2.jpg 1000w, https:\/\/www.123fakta.com\/wp-content\/uploads\/lungefisk-fakta-2-300x225.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/lungefisk-fakta-2-768x576.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/lungefisk-fakta-2-16x12.jpg 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-7524\" class=\"wp-caption-text\">Attribusjon: Mathae - Wikipedia.org<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Fakta: Afrikansk lungefisk kan overleve p\u00e5 land i opptil to \u00e5r, der de g\u00e5r i dvale under jorden og venter p\u00e5 at vannstanden skal stige.<\/strong><\/em><\/p>\n<h2>Rekorder i fiskens verden<\/h2>\n<ul>\n<li><strong>Raskeste fisk:<\/strong>\u00a0Seilfisk kan sv\u00f8mme i hastigheter p\u00e5 opptil 110 km\/t.<\/li>\n<li><strong>Arter:<\/strong>\u00a0Det finnes mer enn 32 000 fiskearter, noe som gj\u00f8r fisk til den mest mangfoldige gruppen av alle virveldyr. Det finnes flere fiskearter enn amfibier, reptiler, fugler og pattedyr til sammen.<\/li>\n<li><strong>St\u00f8rste fisk:<\/strong>\u00a0Verdens st\u00f8rste fisk er\u00a0<a title=\"Fakta om hvalhaier\" href=\"https:\/\/www.123fakta.com\/da\/fakta-om-hvalhajer\">hvalhai<\/a>\u00a0(Rhincodon typus) . Den st\u00f8rste registrerte hvalhaien var 12,65 meter lang og veide 21,5 tonn.<\/li>\n<li><strong>St\u00f8rste fiskeegg:<\/strong>\u00a0Verdens st\u00f8rste fiskeegg var et hvalhaiegg som ble funnet i Mexicogolfen p\u00e5 1950-tallet, og som m\u00e5lte 35,6 cm.<\/li>\n<li><strong>Den minste fisken:<\/strong>\u00a0Verdens minste fisk er Paedocypris progenetica, der det minste registrerte eksemplaret var 7,9 mm langt. Hannene n\u00e5r en maksimal lengde p\u00e5 9,8 mm og hunnene 10,3 mm.<\/li>\n<li><strong>Den eldste fisken:<\/strong>\u00a0Noen av de eldste fiskene er underarten Koi (Cyprinus carpio haematopterus) og slekten Kingfish (Sebastes spp.), som begge kan bli over 200 \u00e5r gamle.<\/li>\n<li><strong>Flest egg:<\/strong>\u00a0En solabellhunn kan gyte opptil 300 millioner egg i l\u00f8pet av \u00e9n gytesesong.<\/li>\n<li><strong>F\u00f8rste akvarium:<\/strong>\u00a0I 1853 \u00e5pnet verdens f\u00f8rste offentlig tilgjengelige akvarium i London i Storbritannia. Allerede i 1856 ble det andre akvariet \u00e5pnet i New York i USA.<\/li>\n<li><strong>St\u00f8rste fiskefossil:<\/strong>\u00a0Verdens st\u00f8rste fiskefossil ble funnet i England i 2003 og m\u00e5lte hele 22 meter! Fossilet var av arten Leedsichthys problematicus, som levde for 150 millioner \u00e5r siden.<\/li>\n<\/ul>\n<figure id=\"attachment_7526\" aria-describedby=\"caption-attachment-7526\" style=\"width: 990px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7526\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/klumpfisk-fakta-2.jpg\" alt=\"Fakta: Solabbor kan gyte opptil 300 000 000 egg i l\u00f8pet av en sesong.\" width=\"1000\" height=\"815\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/klumpfisk-fakta-2.jpg 1000w, https:\/\/www.123fakta.com\/wp-content\/uploads\/klumpfisk-fakta-2-300x245.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/klumpfisk-fakta-2-768x626.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/klumpfisk-fakta-2-15x12.jpg 15w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-7526\" class=\"wp-caption-text\">Tildeling: Per-Ola Norman - Wikipedia.org<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Solabbor kan gyte flest egg av alle fisk; opptil 300 millioner i l\u00f8pet av en gytesesong.<\/strong><\/em><\/p>\n<h2>Mer fakta om fisk<\/h2>\n<ul>\n<li><strong>Sv\u00f8m baklengs:<\/strong>\u00a0Noen fisk kan sv\u00f8mme baklengs, for eksempel avtrekkerfisk (balistidae).<\/li>\n<li><strong>Land og luft:<\/strong>\u00a0Alle fisk sv\u00f8mmer, men noen kan ogs\u00e5 hoppe i vannet, fly og til og med g\u00e5 p\u00e5 land.<\/li>\n<li><strong>Lungefisk:<\/strong>\u00a0Den afrikanske lungefisken (Protopterus) kan leve p\u00e5 land i opptil 2 \u00e5r. De ligger i dvale under jorden og venter p\u00e5 at vannstanden skal stige.<\/li>\n<li><strong>Ferskvannsarter:<\/strong>\u00a040% av alle fiskearter lever i ferskvann, selv om mindre enn 0,1% av jordens vann er ferskvann.<\/li>\n<li><strong>Munngyting:<\/strong>\u00a0Banggaikardinalen (Pterapogon kauderni) holder b\u00e5de egg og yngel i munnen til yngelen er i stand til \u00e5 sv\u00f8mme p\u00e5 egen h\u00e5nd. Fordi denne prosessen varer i flere uker, spiser ikke banggaikardinalen noe f\u00f8r yngelen klekkes.<\/li>\n<li><strong>Bruskskjelett:<\/strong>\u00a0Noen fisk har et skjelett som utelukkende best\u00e5r av brusk (f.eks. haier).<\/li>\n<li><strong>Sanser:<\/strong>\u00a0Fisk kan f\u00f8le smerte og stress p\u00e5 samme m\u00e5te som fugler, pattedyr osv.<\/li>\n<li><strong>Truet fisk:<\/strong>\u00a0Det finnes mer enn 1 000 truede fiskearter.<\/li>\n<li><strong>Akvarievann:<\/strong>\u00a0Det var f\u00f8rst i 1853 (i London) at man inns\u00e5 at filtrering og oksygenering av akvarievann var n\u00f8dvendig for at fisk skulle kunne overleve i det. F\u00f8r den tid ble all fisk holdt utend\u00f8rs.<\/li>\n<li><strong>Iktyologi:<\/strong>\u00a0Studiet av fisk kalles \"iktyologi\", og en person som studerer fisk kalles \"iktyolog\".<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Morsomt navn: Det finnes en fiskeart som kalles \"slippery dick\" (Halichoeres bivittatus) Haier: Haier dreper 12 mennesker i \u00e5ret. Mennesker dreper 11 417 haier i timen Kj\u00f8nn: Mange fiskearter skifter kj\u00f8nn i l\u00f8pet av livet mens de sv\u00f8mmer: Noen fisk - som haier - har ingen luftbl\u00e6re og m\u00e5 derfor sv\u00f8mme for \u00e5 unng\u00e5 \u00e5 synke til bunns ... <a title=\"Fakta om fisk\" class=\"read-more\" href=\"https:\/\/www.123fakta.com\/nb\/facts-about-fish\" aria-label=\"Les mer om fakta om fisk\">Les mer<\/a><\/p>","protected":false},"author":1,"featured_media":7527,"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-1642","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>Fish facts - 29 fun and interesting facts about fish<\/title>\n<meta name=\"description\" content=\"Fact: Fish do not pee. Fish can taste without opening their mouths. Lipstick often contains fish scales. Get more facts about fish here.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.123fakta.com\/nb\/fakta-om-fisk\/\" \/>\n<meta property=\"og:locale\" content=\"nb_NO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fish facts - 29 fun and interesting facts about fish\" \/>\n<meta property=\"og:description\" content=\"Fact: Fish do not pee. Fish can taste without opening their mouths. Lipstick often contains fish scales. 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Fisk kan smake uten \u00e5 \u00e5pne munnen. Leppestift inneholder ofte fiskeskjell. 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