{"id":1660,"date":"2014-05-24T08:29:47","date_gmt":"2014-05-24T08:29:47","guid":{"rendered":"http:\/\/www.123fakta.com\/da\/?p=1660"},"modified":"2026-03-19T10:38:27","modified_gmt":"2026-03-19T10:38:27","slug":"tosiasioita-sinivalaista","status":"publish","type":"post","link":"https:\/\/www.123fakta.com\/fi\/facts-about-blue-whales","title":{"rendered":"Tietoja sinivalaista"},"content":{"rendered":"<ol>\n<li><strong>Suurin el\u00e4in:<\/strong>\u00a0Sinivalas on suurin el\u00e4in, joka on koskaan ollut olemassa maapallolla. Sinivalaat voivat kasvaa jopa 33 metri\u00e4 pitkiksi ja painaa jopa 200 tonnia. Sinivalaiden kieli voi painaa yht\u00e4 paljon kuin <a href=\"https:\/\/www.123fakta.com\/fi\/tosiasioita-norsuista\/\">norsu<\/a> - ja sen syd\u00e4n yht\u00e4 paljon kuin auton<\/li>\n<li><strong>Nis\u00e4kk\u00e4\u00e4t:<\/strong>\u00a0Vaikka sinivalaat ruokailevat meren syvyyksiss\u00e4, niiden, kuten kaikkien nis\u00e4kk\u00e4iden, on noustava pintaan haukkaamaan ilmaa. Veden pinnalla valaat uloshengitt\u00e4v\u00e4t ilmaa puhallusaukkonsa kautta paineistettuun vesih\u00f6yrypilveen (blowstone), joka nousee jopa 9 metrin korkeuteen ilmaan.<\/li>\n<li><strong>Uinti yksin:<\/strong>\u00a0Sinivalaat uivat yleens\u00e4 yksin, mutta toisinaan pareittain tai pieniss\u00e4 ryhmiss\u00e4.<\/li>\n<li class=\"no-mobile\"><strong>Nopeus:<\/strong>\u00a0Suuresta koostaan huolimatta sinivalaat voivat uida jopa 55 km\/h nopeudella.<\/li>\n<li><strong>Paritus:<\/strong>\u00a0Sinivalaiden naaraat parittelevat vain joka kolmas vuosi ja ovat tiinein\u00e4 11-12 kuukautta. Naaraat saavat yleens\u00e4 vain yhden vasikan kerrallaan.<\/li>\n<li><strong>Sinivalaiden vauvat:<\/strong>\u00a0Sinivalaan poikaset voivat olla jopa 8 metri\u00e4 pitki\u00e4 ja painaa syntyess\u00e4\u00e4n jopa 2700 kiloa. Sinivalaspoikaset imev\u00e4t emonsa kanssa ja kuluttavat yli 600 litraa maitoa p\u00e4iv\u00e4ss\u00e4. El\u00e4m\u00e4ns\u00e4 ensimm\u00e4isten 7 kuukauden aikana sinivalaan poikaset lihovat noin 90 kg p\u00e4iv\u00e4ss\u00e4.<\/li>\n<li><strong>Pienet aivot:<\/strong>\u00a0Sinivalaiden aivot ovat suhteellisen pienet; ne painavat tyypillisesti noin 6,92 kg ja muodostavat noin 0,007% valaan ruumiinpainosta.<\/li>\n<li><strong>S\u00e4ilytt\u00e4minen:<\/strong>\u00a0Kansainv\u00e4linen valaanpyyntikomissio suojeli sinivalaita vuonna 1966, mutta laitonta mets\u00e4styst\u00e4 on harjoitettu siit\u00e4 l\u00e4htien. Nyky\u00e4\u00e4n sinivalaita pidet\u00e4\u00e4n edelleen uhanalaisena lajina.<\/li>\n<li><strong>Viholliset:<\/strong>\u00a0Valtavan kokonsa vuoksi sinivalailla on hyvin v\u00e4h\u00e4n luonnollisia vihollisia - <a href=\"https:\/\/www.123fakta.com\/fi\/tosiasioita-haista\/\">hait<\/a> ja miekkavalaat ovat er\u00e4it\u00e4 ainoita (ja miekkavalas on sinivalaiden ainoa <a href=\"https:\/\/www.123fakta.com\/fi\/tosiasioita-petoelaimista\/\">saalistaja<\/a>). 25% kaikista aikuisista sinivalaista on saanut arpia tappajavalaan hy\u00f6kk\u00e4yksist\u00e4. Lis\u00e4ksi monet sinivalaat kuolevat ihmisen mets\u00e4styksen ja suurten alusten kanssa tapahtuvien t\u00f6rm\u00e4ysten seurauksena.<\/li>\n<li><strong>Numero:<\/strong>\u00a0Arvioiden mukaan maailmassa on nyky\u00e4\u00e4n 10 000-25 000 sinivalaita. Antarktista ymp\u00e4r\u00f6iviss\u00e4 meriss\u00e4 arvioitiin 1800-luvun lopulla olleen noin 220 000 sinivalaita. Lukum\u00e4\u00e4r\u00e4n suuri v\u00e4heneminen johtuu p\u00e4\u00e4asiassa ihmisen harjoittamasta liikakalastuksesta 1920- ja 1930-luvuilla, jolloin valaita pyydettiin jopa 30 000 vuodessa. Sinivalaiden m\u00e4\u00e4r\u00e4 oli todenn\u00e4k\u00f6isesti alhaisimmillaan vuonna 1990, jolloin kokonaiskannan arvioitiin olevan alle 10 000.<\/li>\n<\/ol>\n<figure id=\"attachment_7507\" aria-describedby=\"caption-attachment-7507\" style=\"width: 990px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7507\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/blaahval-fakta-2.jpg\" alt=\"Fakta: Sinivalas hengitt\u00e4\u00e4 tuulta veden pinnalla olevan puhallusaukkonsa kautta.\" width=\"1000\" height=\"1393\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/blaahval-fakta-2.jpg 1000w, https:\/\/www.123fakta.com\/wp-content\/uploads\/blaahval-fakta-2-215x300.jpg 215w, https:\/\/www.123fakta.com\/wp-content\/uploads\/blaahval-fakta-2-735x1024.jpg 735w, https:\/\/www.123fakta.com\/wp-content\/uploads\/blaahval-fakta-2-768x1070.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/blaahval-fakta-2-9x12.jpg 9w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-7507\" class=\"wp-caption-text\">Attribuutio: Andreas Tille - Wikipedia.org: NOAA + Andreas Tille - Wikipedia.org<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Tosiasia: Sinivalas on nis\u00e4k\u00e4s, joten sen on noustava pintaan haukkaamaan ilmaa. Pinnalle p\u00e4\u00e4sty\u00e4\u00e4n se hengitt\u00e4\u00e4 ilmaa puhallusaukkonsa kautta.<\/strong><\/em><\/p>\n<h2>Sinivalaan ruoka<\/h2>\n<ul>\n<li><strong>Barder:<\/strong>\u00a0Sinivalas on paaluvala, mik\u00e4 tarkoittaa, ett\u00e4 sill\u00e4 on 540-790 mustaa paalulevy\u00e4, jotka voivat kasvaa jopa metrin pituisiksi. Ne roikkuvat yl\u00e4leuasta alasp\u00e4in, ja niit\u00e4 k\u00e4ytet\u00e4\u00e4n suodattamaan ravintoa (planktonia, jota kutsutaan my\u00f6s \"kevytravuiksi\" tai \"krilliksi\") vedest\u00e4, joka virtaa sinivalaan suun l\u00e4pi.<\/li>\n<li><strong>Krilli:<\/strong>\u00a0Sinivalaat voivat sy\u00f6d\u00e4 jopa 4 tonnia krilli\u00e4 p\u00e4iv\u00e4ss\u00e4, ja niiden vatsaan mahtuu noin 1 tonni krilli\u00e4.<\/li>\n<li><strong>Kaloreita:<\/strong>\u00a0Yhdell\u00e4 suupalalla sinivalas kuluttaa l\u00e4hes puoli miljoonaa kilokaloria (kcal). Aikuinen sinivalas tarvitsee 1,5 miljoonaa kilokaloria (kcal) p\u00e4iv\u00e4ss\u00e4.<\/li>\n<\/ul>\n<figure id=\"attachment_7511\" aria-describedby=\"caption-attachment-7511\" style=\"width: 790px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7511\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/blue-whale.jpg\" alt=\"Fakta: Sinivalaat uivat tyypillisesti yksin\" width=\"800\" height=\"530\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/blue-whale.jpg 800w, https:\/\/www.123fakta.com\/wp-content\/uploads\/blue-whale-300x199.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/blue-whale-768x509.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/blue-whale-18x12.jpg 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-7511\" class=\"wp-caption-text\">Attribuutio: Gregory \"Slobirdr\" Smith<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Sinivalaat uivat yleens\u00e4 yksin, mutta voivat uida my\u00f6s pareittain tai pieniss\u00e4 ryhmiss\u00e4.<\/strong><\/em><\/p>\n<ul>\n<li><strong>V\u00e4rik\u00e4s jakkara:<\/strong>\u00a0Koska sinivalaiden ravinnossa on niin paljon krilli\u00e4, niiden ulosteet ovat sateenkaaren v\u00e4risi\u00e4.<\/li>\n<li><strong>Isoja paloja:<\/strong>\u00a0Sinivalaat voivat pit\u00e4\u00e4 suussaan jopa 110 tonnia vett\u00e4 kerrallaan.<\/li>\n<li><strong>Sukellus:<\/strong>\u00a0Koska krilli\u00e4 esiintyy p\u00e4\u00e4asiassa syv\u00e4ll\u00e4 meress\u00e4, sinivalaat sukeltavat yleens\u00e4 alle 100 metrin syvyyteen pyydyst\u00e4\u00e4kseen krilli\u00e4. Sukellus kest\u00e4\u00e4 yleens\u00e4 10 minuuttia, mutta my\u00f6s 20 minuutin sukellukset ovat yleisi\u00e4. Sinivalaat my\u00f6s yleens\u00e4 sukeltavat yksinomaan p\u00e4iv\u00e4ll\u00e4 ruokaa etsiess\u00e4\u00e4n ja ruokailevat y\u00f6ll\u00e4 pinnalla.<\/li>\n<\/ul>\n<p>Voit my\u00f6s tutustua <a href=\"https:\/\/www.123fakta.com\/fi\/tosiasioita-valaista\/\">artikkeli valaista t\u00e4\u00e4ll\u00e4<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Suurin el\u00e4in: Sinivalas on suurin el\u00e4in, joka on koskaan ollut olemassa maapallolla. Sinivalaat voivat kasvaa jopa 33 metri\u00e4 pitkiksi ja painaa jopa 200 tonnia. Sinivalaan kieli voi painaa yht\u00e4 paljon kuin norsu - ja sen syd\u00e4n yht\u00e4 paljon kuin auto Nis\u00e4kk\u00e4\u00e4t: Vaikka sinivalaat ruokailevat ... <a title=\"Tietoja sinivalaista\" class=\"read-more\" href=\"https:\/\/www.123fakta.com\/fi\/facts-about-blue-whales\" aria-label=\"Lue lis\u00e4\u00e4 aiheesta Faktoja sinivalaista\">Lue lis\u00e4\u00e4<\/a><\/p>","protected":false},"author":1,"featured_media":7509,"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-1660","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>Facts about blue whales - Size, weight, food, predators, etc.<\/title>\n<meta name=\"description\" content=\"Fact: Blue whales can grow up to 33 m long and weigh a maximum of 200 tons. 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