Warmer ocean temperatures due to climate change could attract invasive species that threaten native marine life, with knock-on impacts for fishing and biodiversity
WARMER OCEAN TEMPERATURES due to climate change could attract invasive species that threaten native marine life, according to an expert, with knock-on impacts for fishing and biodiversity.
In the North Atlantic near Ireland and the UK, a marine heatwave saw water temperatures up to four degrees higher last week than average for this time of year. As temperature patterns change, the profile of marine life that can and can’t survive in Irish waters will also likely shift. “We have a well-balanced ecosystem here that has been in tune with itself for thousands of years, but as the temperatures change, more invasive species might start to arise that could cause big disruption,” O’Donovan said.
“With warmer waters, potentially we could be seeing more species like that coming in and causing disruption.”Emissions One powerful way that oceans can limit greenhouse gas emissions is by storing carbon on the seafloor in the remnants of marine animals and plants – but human activities can dredge that carbon up and release it into the atmosphere as carbon dioxide, a greenhouse gas.“The ocean stores more carbon than anything else on the planet.
The average surface-level temperature off Ireland’s north coast has risen by half a degree over the last decade and the ocean off the southwest coast is expected to become warmer and less salty by 2035.
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