English
norskBlar i forfatter "Delgado-Huertas, Antonio"
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Continuous daylight in the high-Arctic summer supports high plankton respiration rates compared to those supported in the dark
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-28)Plankton respiration rate is a major component of global CO2 production and is forecasted to increase rapidly in the Arctic with warming. Yet, existing assessments in the Arctic evaluated plankton respiration in the dark. Evidence that plankton respiration may be stimulated in the light is particularly relevant for the high Arctic where plankton communities experience continuous daylight in spring ... -
Episodic Arctic CO2 Limitation in the West Svalbard Shelf
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-06)The European Sector of the Arctic Ocean is characterized by low CO<sub>2</sub> concentrations in seawater during spring and summer, largely due to strong biological uptake driven by extensive plankton blooms in spring. The spring plankton bloom is eventually terminated by nutrient depletion and grazing. However, low CO<sub>2</sub> concentrations in seawater and low atmospheric resupply of CO<sub>2</sub> ... -
Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-02)Phytoplankton contribute half of the primary production (PP) in the biosphere and are the major source of energy for the Arctic Ocean ecosystem. While PP measurements are therefore fundamental to our understanding of marine biogeochemical cycling, the extent to which current methods provide a definitive estimate of this process remains uncertain given differences in their underlying approaches, and ...
