[{"data":1,"prerenderedAt":297},["ShallowReactive",2],{"$fpfOwamMrE0WbaDAEVCRd67qOp2JD7O8c3IKDZ9iQ76Q":3,"footerItems":149},{"title":4,"slug":5,"url":6,"entryType":7,"date":8,"lastUpdated":8,"banner":9,"coverImage":10,"category":11,"author":14,"introduction":15,"tags":16,"articleContent":19,"featuredArticles":43,"flipsnackCode":14,"typeformCode":14,"seomatic":81},"Migrating turtles don’t really know where they’re going","migrating-turtles-dont-really-know-where-theyre-going","https:\u002F\u002Fwww.zubludiving.com\u002Farticles\u002Fzublu-insights\u002Fmigrating-turtles-dont-really-know-where-theyre-going","newArticle","31 May 2022","https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FSipadan_Turtle_Banner.jpg","https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FMyanmar\u002FMergui-Archipelago\u002FAwei-Pila\u002Fsea-turtle-awei-pila-resort-myanmar-min.jpg",{"title":12,"slug":13},"News & opinion","news-opinion",null,"The ability of animals such as sea turtles to migrate huge distances across the open ocean has long intrigued marine biologists. But, according to a recent article in The Guardian, some sea turtles may not be the expert navigators we once thought they were.",[17,18],"turtles","news",[20,23,28,30,35,37,41],{"type":21,"text":22},"paragraph","\u003Cp>\u003Cstrong>The ability of animals such as sea turtles to migrate huge distances across the open ocean has long intrigued marine biologists. But, according to a recent article in \u003Ca href=\"https:\u002F\u002Fwww.theguardian.com\u002Fworld\u002F2022\u002Fmay\u002F11\u002Fmigrating-turtles-dont-really-know-where-theyre-going-study-shows\">The Guardian\u003C\u002Fa>, some sea turtles may not be the expert navigators we once thought they were.\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>Conducted by an international team of scientists and published in the Journal of the Royal Society Interface, the research mapped the migrations of hawksbill turtles from nesting grounds in the Chagos Archipelago to foraging sites in the Indian Ocean.\u003C\u002Fp>\n\u003Cp>Analysis of the turtles’ movements found that they typically travelled twice the distance needed to reach their destination, often meandering here and there over shorter migrations, suggesting their sense of direction in open ocean is rather rudimentary. One particular turtle swam 1,306-kilometres to reach an island located 176-kilometres away - travelling more than seven times the direct distance.\u003C\u002Fp>",{"type":24,"image":25,"description":26,"size":27,"text":26},"image","https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FPhilippines\u002FVisayas\u002FMoalboal\u002FMoalboal_Sampaguita-turtle.jpg","","large",{"type":21,"text":29},"\u003Cp>To achieve these findings, the team tagged 22 hawksbill turtles after they had finished nesting and tracked them via satellite as they moved on to better foraging grounds. Sea turtles typically nest and forage in separate geographical locations, meaning the hawksbills tracked “most probably hadn’t eaten for four or five months,” according to Prof Graeme Hays, chair in marine science at Deakin University and the study’s first author.\u003C\u002Fp>\n\u003Cp>Previous research has suggested that sea turtles likely use an imprint of the earth’s magnetic field where they were born to help them navigate through the ocean, detecting changes as they move. According to Hays, the new study concludes that turtles “almost certainly are using a geomagnetic map, but it’s a fairly coarse resolution.” This means “it doesn’t allow pinpoint straight-line migration, but it does tell them when they’re getting a long way off route,” he said.\u003C\u002Fp>\u003Cp>Hawksbill turtles typically migrate distances of about 150-kilometres, far less than some of their relatives. “For green turtles that nest in the Chagos Archipelago … we’ve tracked them going almost 5,000km to their foraging grounds,” Hays said. “They’ll swim all the way across the Indian Ocean to the mainland African coast.”\u003C\u002Fp>\n",{"type":31,"text":32,"quotee":33,"year":34},"quote","Although it’s a long journey, in a sense it’s actually quite an easy navigational task because all the turtle has to do is swim vaguely westwards and it’ll eventually hit Africa.","Prof Graeme Hays, chair in marine science at Deakin University","2022",{"type":21,"text":36},"\u003Cp>But, while hawksbills certainly make shorter migrations than green turtles, they tend to seek out small, specific locations such as remote isolated islands, making the task all the more tricky. The new study suggests that the sea turtles’ geomagnetic map is not detailed enough to accurately locate such specific targets.\u003C\u002Fp>\n\u003Cp>Thankfully, their sense of direction is enough to get the turtles’ within a reasonable distance of their destination, after which, they likely rely on other senses such as sight and smell. According to Hays, turtles “can smell an island that they’re headed to” in the final stages of their journey.\u003C\u002Fp>\n\u003Cp>“As they get some sort of visual landmark, for example, the water starts to get a bit shallower and they can see the seabed, then they probably got some sort of cognitive map of that area. They could probably just recognise the seafloor, just like you would recognise visual landmarks in the area where you live,” he said.\u003C\u002Fp>\n",{"type":38,"heading":39,"text":40},"enquiry","Want to go diving with sea turtles?","Contact one of our dive travel experts today",{"type":42,"text":26},"subscribe",[44,53,63,72],{"title":45,"slug":46,"url":47,"entryType":48,"date":49,"lastUpdated":49,"banner":26,"coverImage":50,"category":51,"introduction":52},"Turtle Quiz","turtle-quiz","https:\u002F\u002Fwww.zubludiving.com\u002Farticles\u002Fzublu-insights\u002Fturtle-quiz","quiz","30 Apr 2021","https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FArticles\u002Fturtle-quiz\u002FTurtle-Banner-Insight.jpg","ZuBlu digital portal","Test your sea turtle knowledge with this 10 question quiz!",{"title":54,"slug":55,"url":56,"entryType":7,"date":57,"lastUpdated":58,"banner":59,"coverImage":60,"category":61,"introduction":62},"The world’s top destinations to scuba dive with turtles","worlds-top-turtle-diving-destinations","https:\u002F\u002Fwww.zubludiving.com\u002Farticles\u002Fzublu-insights\u002Fworlds-top-turtle-diving-destinations","20 Jan 2022","08 Sep 2024","https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FArticles\u002FScuba-Diving-During-COVID\u002FZuBlu-Bali-Diver-and-Turtle.jpg","https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FPhilippines\u002FVisayas\u002FCebu-Visayas-Diving-Apo-Turtle.jpg","Marine life","The best places in the world to scuba dive with turtles, including Sipadan in Malaysia, Bunaken in Indonesia, Belize and the Cayman Islands.",{"title":64,"slug":65,"url":66,"entryType":7,"date":67,"lastUpdated":68,"banner":69,"coverImage":70,"category":12,"introduction":71},"Thousands of sea turtles lay 60 million eggs in India, amid Covid-19 lockdown","thousands-of-sea-turtles-lay-60-million-eggs-in-india-amid-covid-19-lockdown","https:\u002F\u002Fwww.zubludiving.com\u002Farticles\u002Fzublu-insights\u002Fthousands-of-sea-turtles-lay-60-million-eggs-in-india-amid-covid-19-lockdown","03 Apr 2020","24 Jan 2024",false,"https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FOlive-ridley-turtle-arribada.jpg","​Much like most of the world, the human population in India remains on lockdown – and thousands of sea turtles have taken advantage of the unusually quiet beaches.",{"title":73,"slug":74,"url":75,"entryType":7,"date":76,"lastUpdated":77,"banner":78,"coverImage":79,"category":61,"introduction":80},"Learn about sea turtles","sea-turtles","https:\u002F\u002Fwww.zubludiving.com\u002Farticles\u002Fzublu-insights\u002Fsea-turtles","06 Feb 2018","25 Sep 2024","https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FArticles\u002FSea-Turtles\u002FLearn-About-Sea-Turtles-banner.jpg","https:\u002F\u002Fwww.zubludiving.com\u002Fimages\u002FArticles\u002FSea-Turtles\u002FLearn-About-Sea-Turtles.jpg","Learn more about marine turtles - their habitat, behaviour and the threats they are now faced with across Asia.\r\n\r\nThe ancient relatives of modern sea turtles first evolved over 100 million years ago and today, these charismatic animals can be found across all of our planet’s warmer oceans and seas. Their close connection to the land has meant humans have always had a relationship with turtle species - mostly as a source of food - but in modern times they have become icons of the seas, and high on the wish list of snorkelers and divers alike. However, all seven sea turtle species are now listed as critically endangered or vulnerable and it is our responsibility as divers, travellers or lovers of the oceans to do what we can to ensure that the future of these remarkable animals is in safe hands.",{"seomaticMeta":82,"seomaticHelper":102,"seomaticSiteMeta":107,"seomaticSocial":114,"seomaticIdentity":118,"seomaticCreator":124,"seomaticMainEntityOfPage":126,"seomaticTemplatePath":26},{"seoTitle":4,"seoDescription":83,"seoKeywords":84,"seoImage":10,"robots":26,"canonicalUrl":6,"twitter":85,"og":88,"breadcrumbs":100},"The ability of animals such as sea turtles to migrate huge distances across the open ocean has long intrigued marine biologists. 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