The Arctic Ocean is warming twice as fast as the rest of the planet, causing an alarming retreat of sea ice. Beneath this ice lies a hidden world of special marine species – tiny organisms that thrive in extreme conditions. A recent study by the University of Exeter, in collaboration with Canadian institutions, shows how seriously threatened these sub-ice communities are.
Arctic Crisis in Figures:
Warming Rate Doubles: Arctic Temperatures Are Rising at an Unprecedented Rate.
Loss of specialist species: These communities, unique to sub-ice ecosystems, are being replaced by generalist species as the ice shrinks.
Global impact: Changes in Arctic biodiversity are affecting global marine food webs.
“Every drop of ocean water is teeming with microscopic life,” says Dr. Vicki Jackson. “These communities form the backbone of marine ecosystems, directly and indirectly supporting ocean life.” However, as sea ice retreats, these species are faced with environments to which they may not adapt quickly enough, with wider implications for marine biodiversity.
This study highlights the urgent need to address climate change. Protecting Arctic ecosystems requires global cooperation, from reducing emissions to investing in ecological practices that reduce further damage.
For more information, see the full study, published in Scientific Reports: Vulnerability of Arctic Ocean Microbial Eukaryotes to Sea Ice Loss.
additional sources of information.
1. University of Exeter
2. Scientific Reports DOI: 10.1038/s41598-024-77821-9
3. ScienceDaily Arctic Studies
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