Editorial: Phytoplankton dynamics under climate change

Eker-Develi, Elif; Kideys, Ahmet E.; Mikaelyan, Alexander; Devlin, Michelle Jillian; Newton, Alice

http://hdl.handle.net/10400.1/17683

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Authors

Eker-Develi, Elif

Kideys, Ahmet E.

Mikaelyan, Alexander

Devlin, Michelle Jillian

Newton, Alice

Abstract(s)

Phytoplankton plays an important role in ocean processes, and is well-known to have an enormous positive impact on climate change or more specifically on global warming, by reducing atmospheric CO2 levels through the sinking of produced organic and inorganic matter to the deep ocean (Falkowski, 2012; Beardall and Raven, 2013). However, climate change, with consequences of elevated seawater temperatures and decreased pH levels (Beardall and Raven, 2013), influences phytoplankton dynamics, changing phytoplankton composition, geography and biomass in the oceans (Falkowski and Oliver, 2007; Boyd et al., 2015; Jonkers et al., 2019). Temperature increases could also drive temporal shifts in the onset of the regular annual blooms, their composition, duration and amplitude as well as mismatches in timing between trophic levels (Hinder et al., 2012; Mikaelyan et al., 2015). The overall impact of increased temperature on phytoplankton is not easy to assess due to variable and complex repercussions. For example, increasing temperatures can lead to more stratified waters, especially in summer months, and prevent nutrient replenishment at the ocean surface.