Most young turtles caught off the coast of Queensland have ingested plastics, new research shows.
Around 83 per cent of green turtles and 86 per cent of loggerhead turtles found off the coast of Queensland were found to have plastics within them, a study from Deakin, James Cook and Murdoch universities found.
James Cook University Professor Mark Hamann said plastic pollution has become one of the most pressing threats to marine wildlife.
“Plastics now make up 80 per cent of all marine debris and can be found everywhere, from surface waters to deep-sea sediments,” Professor Hamann said.
“Plastic ingestion and entanglement, which can cause suffocation, has now been documented for every species of marine turtle.”
Researchers examined the contents of the stomach, intestines, cloaca and bladder of stranded or captured turtles collected from the Indian Ocean off Western Australia and the Pacific Ocean off Eastern Australia.
Professor Hamann said one turtle found in the Indian Ocean contained 343 pieces of plastic while another in the Pacific Ocean contained 144.
The proportion of turtles that had ingested plastic was much higher in the Pacific Ocean than in the Indian Ocean.
The research, which also involved the University of Exeter in the United Kingdom, has just been published in the peer-reviewed Frontiers in Marine Science .
Researchers suggested small juvenile turtles are most at risk, as this life stage is most prone to entanglement and plastics ingestion due to their feeding preferences, while the oceanic zones they inhabit overlap with areas of high plastic pollution.
-AAP
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