Phytoplankton dynamics in a changing Arctic Ocean

Mathieu Ardyna () and Kevin Robert Arrigo
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Mathieu Ardyna: Stanford University
Kevin Robert Arrigo: Stanford University

Nature Climate Change, 2020, vol. 10, issue 10, 892-903

Abstract: Abstract Changes in the Arctic atmosphere, cryosphere and Ocean are drastically altering the dynamics of phytoplankton, the base of marine ecosystems. This Review addresses four major complementary questions of ongoing Arctic Ocean changes and associated impacts on phytoplankton productivity, phenology and assemblage composition. We highlight trends in primary production over the last two decades while considering how multiple environmental drivers shape Arctic biogeography. Further, we consider changes to Arctic phenology by borealization and hidden under-ice blooms, and how the diversity of phytoplankton assemblages might evolve in a novel Arctic ‘biogeochemical landscape’. It is critical to understand these aspects of changing Arctic phytoplankton dynamics as they exert pressure on marine Arctic ecosystems in addition to direct effects from rapid environmental changes.

Date: 2020
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DOI: 10.1038/s41558-020-0905-y

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