{"id":10184,"date":"2025-06-11T18:21:18","date_gmt":"2025-06-11T18:21:18","guid":{"rendered":"https:\/\/hurghada-today.com\/?p=10184"},"modified":"2025-10-26T18:42:09","modified_gmt":"2025-10-26T18:42:09","slug":"how-do-marine-creatures-breathe-underwater","status":"publish","type":"post","link":"https:\/\/hurghada-today.com\/sr\/how-do-marine-creatures-breathe-underwater\/","title":{"rendered":"Kako morska stvorenja di\u0161u pod vodom?"},"content":{"rendered":"<p>Voda u okeanima i morima sadr\u017ei zna\u010dajnu koli\u010dinu rastvorenog kiseonika. Pa ipak, ako bi \u010dovek poku\u0161ao da di\u0161e pod vodom, pre\u017eivljavanje bi bilo nemoguc\u0301e. <!--more-->U me\u0111uvremenu, <a href=\"https:\/\/hurghada-today.com\/sr\/sea-tours\/\">morska stvorenja<\/a> to rade prirodno i bez napora. Ovo postavlja fascinantno pitanje: <strong>kako ribe izvla\u010de kiseonik iz vode<\/strong>? I da li sve morske \u017eivotinje di\u0161u na isti na\u010din? U ovom \u010dlanku c\u0301emo istra\u017eiti kako razli\u010diti oblici morskog \u017eivota di\u0161u i klju\u010dne razlike izme\u0111u riba i morskih sisara, kao \u0161to su kitovi i delfini.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-10191\" src=\"https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/colorful-fish-swimming-in-crystal-clear-water.jpg\" alt=\"colorful fish swimming in crystal-clear water\" width=\"850\" height=\"450\" srcset=\"https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/colorful-fish-swimming-in-crystal-clear-water.jpg 850w, https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/colorful-fish-swimming-in-crystal-clear-water-300x159.jpg 300w, https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/colorful-fish-swimming-in-crystal-clear-water-768x407.jpg 768w, https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/colorful-fish-swimming-in-crystal-clear-water-18x10.jpg 18w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/p>\n<h2><strong>Disanje kao vitalni proces<\/strong><\/h2>\n<p>Kiseonik odr\u017eava \u017eivot. On pokrec\u0301e svaku c\u0301eliju, dajuc\u0301i \u017eivim bic\u0301ima moc\u0301 da se krec\u0301u, rastu i ostanu \u017eiva. Ljudi dobijaju kiseonik kroz pluc\u0301a, crpec\u0301i ga iz vazduha sa svakim udisajem. Pluc\u0301a ga \u0161alju u krv, koja ga prenosi do svakog dela tela. Zauzvrat, ugljen-dioksid izlazi kao otpad. Ali <em>za stvorenja pod morem, stvari funkcioni\u0161u druga\u010dije.<\/em>Nema vazduha za disanje, samo voda. Tokom miliona godina, morski \u017eivot je razvio neverovatne na\u010dine da upija kiseonik skriven u njemu.<\/p>\n<h3><strong>Kako ribe di\u0161u pod vodom?<\/strong><\/h3>\n<p>Ribe nemaju pluc\u0301a kao mi. Umesto toga, di\u0161u kroz posebne organe koji se zovu \u0161krge. Ove \u0161krge obavljaju vitalni zadatak razmene gasova - unos kiseonika i ispu\u0161tanje ugljen-dioksida. Svaka \u0161krga je napravljena <!--more-->od tankih, ne\u017enih filamenata ispunjenih sitnim krvnim sudovima. To im daje jarko crvenu boju. Vec\u0301ina riba ima \u010detiri para \u0161krga, ali neke, poput <strong>ajkula, mogu imati \u010dak sedam<\/strong>. Kada <a href=\"https:\/\/hurghada-today.com\/sr\/tour\/orange-bay\/\">riba otvori usta<\/a>, voda ulazi i preliva \u0161krge. Krv unutar filamenata sakuplja kiseonik rastvoren u vodi i zauzvrat osloba\u0111a ugljen-dioksid. Zatim, iskori\u0161c\u0301ena voda klizi kroz otvore \u0161krga - ba\u0161 kao \u0161to voda curi kroz cediljku.<\/p>\n<figure id=\"attachment_10192\" aria-describedby=\"caption-attachment-10192\" style=\"width: 687px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10192 size-full\" src=\"https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/A-mans-hand-shows-the-gills-of-a-fresh-carp-fish-close-up.jpg\" alt=\"A man's hand shows the gills of a fresh carp fish, close-up\" width=\"687\" height=\"363\" srcset=\"https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/A-mans-hand-shows-the-gills-of-a-fresh-carp-fish-close-up.jpg 687w, https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/A-mans-hand-shows-the-gills-of-a-fresh-carp-fish-close-up-300x159.jpg 300w, https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/A-mans-hand-shows-the-gills-of-a-fresh-carp-fish-close-up-18x10.jpg 18w\" sizes=\"auto, (max-width: 687px) 100vw, 687px\" \/><figcaption id=\"caption-attachment-10192\" class=\"wp-caption-text\">\u0420\u0438\u0431\u0435 \u043a\u043e\u0440\u0438\u0441\u0442\u0435 \u0448\u043a\u0440\u0433\u0435 \u0437\u0430 \u0434\u0438\u0441\u0430\u045a\u0435 \u043f\u043e\u0434 \u0432\u043e\u0434\u043e\u043c<\/figcaption><\/figure>\n<h2><strong>Izazovi disanja pod vodom<\/strong><\/h2>\n<p>Iako ribe deluju dobro prilago\u0111eno, podvodno disanje je zapravo zahtevan proces. Voda sadr\u017ei samo oko 8 miligrama kiseonika po litru, dok <em>vazduh sadr\u017ei skoro 210 miligrama po litru<\/em> \u2014 preko 25 puta vi\u0161e. \u0160tavi\u0161e, nivo kiseonika zna\u010dajno opada u dubljim vodama, \u0161to zna\u010di da ribe moraju da se oslanjaju na visoko efikasne sisteme za ekstrakciju kiseonika da bi pre\u017eivele u takvim uslovima.<\/p>\n<h2><strong>Dvostruko disanje kod odre\u0111enih vrsta<\/strong><\/h2>\n<p>Ne zavise sve ribe isklju\u010divo od \u0161krga. Vi\u0161e od <strong>450 vrsta riba<\/strong> mo\u017ee direktno da di\u0161e vazduh koristec\u0301i dvostruke respiratorne sisteme, koji kombinuju \u0161krge, pluc\u0301a ili \u010dak povr\u0161ine ko\u017ee.<\/p>\n<p>Primeri uklju\u010duju:<\/p>\n<ul>\n<li><strong>Blatnjava skakalica:<\/strong> Poreklom iz jugoisto\u010dne Azije, mo\u017ee da \u017eivi do \u0161est uzastopnih dana van vode, di\u0161uc\u0301i direktno kroz vazduh.<\/li>\n<li><strong>Morski som:<\/strong> Poznat u Egiptu kao <em>Karmut<\/em>, ova riba mo\u017ee da pre\u017eivi na kopnu sve dok joj je ko\u017ea vla\u017ena.<\/li>\n<\/ul>\n<h2><strong>Morski sisari \u2014 jedinstven slu\u010daj<\/strong><\/h2>\n<p>Kitovi i delfini nisu ribe, vec\u0301 morski sisari koji di\u0161u <em>vazduh pluc\u0301ima<\/em>. Imaju poseban otvor na vrhu glave koji se naziva otvor za disanje, koji se \u010dvrsto zatvara tokom ronjenja, a otvara se kada stignu do povr\u0161ine da bi udahnuli vazduh. Kitovi mogu da skladi\u0161te <a href=\"https:\/\/ugc.berkeley.edu\/background-content\/oxygen-levels\/\">velike koli\u010dine kiseonika<\/a> u svojim telima, \u0161to im omoguc\u0301ava da ostanu potopljeni do 60 minuta, dok delfini obi\u010dno mogu da zadr\u017ee dah 8-10 minuta.<\/p>\n<figure id=\"attachment_10193\" aria-describedby=\"caption-attachment-10193\" style=\"width: 850px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10193 size-full\" src=\"https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/Dolphin-underwater.jpg\" alt=\"mother and baby dolphin in the blue sea breathe underwater\" width=\"850\" height=\"450\" srcset=\"https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/Dolphin-underwater.jpg 850w, https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/Dolphin-underwater-300x159.jpg 300w, https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/Dolphin-underwater-768x407.jpg 768w, https:\/\/hurghada-today.com\/wp-content\/uploads\/2025\/10\/Dolphin-underwater-18x10.jpg 18w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><figcaption id=\"caption-attachment-10193\" class=\"wp-caption-text\">Jedan dah povezuje delfina sa morem i nebom<\/figcaption><\/figure>\n<h2><strong>Sada razumete kako morski svet di\u0161e pod vodom<\/strong><\/h2>\n<p>Disanje u morskom \u017eivotu jedan je od najzna\u010dajnijih primera biolo\u0161ke adaptacije. Dok ribe koriste \u0161krge za izvla\u010denje kiseonika iz vode, morski sisari se oslanjaju na pluc\u0301a za disanje vazduha, \u0161to ilustruje izuzetnu raznolikost i inteligenciju \u017eivota ispod talasa. Razumevanje ovih mehanizama produbljuje na\u0161e razumevanje morske biologije i doprinosi globalnim naporima za o\u010duvanje prirode usmerenim na za\u0161titu delikatne ravnote\u017ee okeanskih ekosistema. Ako ste inspirisani da <strong>sami istra\u017eite ovaj skriveni svet<\/strong>, Hurghada Today nudi nezaboravne izlete morem gde mo\u017eete izbliza da vidite lepotu morskog \u017eivota.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Voda u okeanima i morima sadr\u017ei zna\u010dajnu koli\u010dinu rastvorenog kiseonika. Pa ipak, ako bi \u010dovek poku\u0161ao da di\u0161e pod vodom, pre\u017eivljavanje bi bilo nemoguc\u0301e.<\/p>","protected":false},"author":4,"featured_media":10203,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[117,152],"tags":[162,167,165,161],"class_list":["post-10184","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-marine-flora-and-fauna","tag-dolphins","tag-fish","tag-red-sea","tag-whales"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How do marine creatures breathe underwater? | Hurghada today<\/title>\n<meta name=\"description\" content=\"Learn how sea creatures breathe underwater \u2014 from fish extracting oxygen with gills to mammals using lungs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hurghada-today.com\/sr\/how-do-marine-creatures-breathe-underwater\/\" \/>\n<meta property=\"og:locale\" content=\"sr_RS\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How do marine creatures breathe underwater? 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