A pair of new studies has revealed 'highly unlikely' phytoplankton blooms appearing near the seafloor and under sea ice at both Earth's poles.
Logic-defying phytoplankton blooms have been discovered lurking beneath the ocean's surface in both of Earth's polar regions, two unrelated new studies have revealed. The highly unlikely"bottom blooms," which grow near the seafloor in the Arctic and below sea ice in Antarctica, could support hidden ecosystems that scientists know nothing about.
However, a pair of new studies published by two different research teams has revealed that some of these blooms are either surviving in deeper waters after the sea ice thickens, as is the case in the Arctic, or starting to bloom beneath the sea ice before it begins its seasonal melt, as seen in Antarctica.
The results, which were published Sept. 27 in the journal Global Change Biology , revealed that the bottom-dwelling phytoplankton were able to survive even when the light was only 1% as strong as it was at surface levels. The researchers suspect that because sea ice is forming later in the year as a result of climate change, the phytoplankton that sink to the seafloor still receive enough light to continue blooming.
Antarctic blooms More recently, a study published Nov. 17 in the journal Frontiers in Marine Science revealed that phytoplankton can also bloom beneath Antarctic sea ice. The researchers are confident that these types of blooms are widespread in the region."We found that 50% or more of the under-ice Antarctic might support under-ice blooms," Horvat said.
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