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Warming oceans mean smaller baby sharks struggle to survive
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Warming oceans mean smaller baby sharks struggle to survive
570news.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from 570news.com Daily Mail and Mail on Sunday newspapers.
A separate study also released today reveals for the first time the rich biodiversity of little-known habitats on the sea floor between reefs in the north of the Great Barrier Reef that have existed since the end of the last ice age.
Global heating is putting coral reef ecosystems around the world at risk, with Australia’s Great Barrier Reef going through three mass bleaching episodes since 2016.
Dr Andy Dietzel, who led the study estimating the numbers of corals, said the findings did not undermine concerns about the impacts of global heating on reef habitats, but did suggest concerns about the survival of individual coral species needed to be reconsidered.
Posted by Gauri Bhandari |
Wednesday 17 February 2021, 01:44 PM (AEDT) Gauri Bhandari is a Year 10 student who’s concerned about how climate change is affecting the economy, job opportunities and the future of young people in Cairns, Far North Queensland. In this opinion piece, she says she believes we all need to act now to save the Great Barrier Reef. The colourful world of the Great Barrier Reef is one of the most astounding and fascinating places on the planet, but it s dying, and so is the city that s the hub of all activity related to it: Cairns. The tourism industry has always been a strong part of the Cairns economy. It developed gradually after World War II, and since then the reef has directly (or indirectly) employed many Cairns residents.
Last modified on Sun 31 Jan 2021 01.11 EST
About four years ago, Colin Simpfendorfer was diving on reefs in Indonesia’s picture-perfect Raja Ampat region when he noticed the distinct absence of something.
“It’s a beautiful place to dive. We would have expected to see grey reef sharks and white tips,” says the veteran scientist. “But you don’t see sharks for days on end.”
Simpfendorfer, an adjunct professor at Queensland’s James Cook University and a global authority on sharks and rays, has been researching the marine animals since the mid-1980s.
Last week, a global team of shark researchers, including Simpfendorfer, found sharks and rays that live in the open ocean have been dwindling at an alarming rate.
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