ReviewFrontiers in microbiology2020
Nitrogen Fixation in a Changing Arctic Ocean: An Overlooked Source of Nitrogen?
Review in Frontiers in microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Dietary records in cosmopolitan copepodScience advances · 2026Article
- Particle-associated diazotrophs drive nitrogen fixation in Arctic subsurface waters of the Barents Sea.Nature communications · 2026Article
- Sediments as Potential Sources of Non-Cyanobacterial Diazotrophs in Arctic Sea Ice and Seawater.Environmental microbiology reports · 2026Article
- Contrasting Nitrogen Fixation Between Arctic and Atlantic Waters in the Fram Strait.Microbial ecology · 2025Article
- Metabolic biochemical models of NmSystems · 2025Article
- Arctic Ocean virus communities and their seasonality, bipolarity, and prokaryotic associations.Nature communications · 2025Article
- Global importance of nitrogen fixation across inland and coastal waters.Science (New York, N.Y.) · 2025Article
- Article
- Particle-associated NScience advances · 2025Article
- Dynamics of diazotroph particle colonization in the Arctic Ocean.The ISME journal · 2025Article
- Nitrogen fixation under declining Arctic sea ice.Communications earth & environment · 2025Article
- Nitrogen fixation in the widely distributed marine γ-proteobacterial diazotrophScience advances · 2024Article
- Marine nitrogen-fixers in the Canadian Arctic Gateway are dominated by biogeographically distinct noncyanobacterial communities.FEMS microbiology ecology · 2023Article
- The response of aquatic ecosystems to the interactive effects of stratospheric ozone depletion, UV radiation, and climate change.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2023Article
- Seasonal Water Mass Evolution and Non-Redfield Dynamics Enhance COJournal of geophysical research. Oceans · 2022Article
- Dark Diazotrophy during the Late Summer in Surface Waters of Chile Bay, West Antarctic Peninsula.Microorganisms · 2022Article
- Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2021.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2022Article
- The polar night shift: seasonal dynamics and drivers of Arctic Ocean microbiomes revealed by autonomous sampling.ISME communications · 2021Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Arctic Ocean is the smallest ocean on Earth, yet estimated to play a substantial role as a global carbon sink. As climate change is rapidly changing fundamental components of the Arctic, it is of local and global importance to understand and predict consequences for its carbon dynamics. Primary production in the Arctic Ocean is often nitrogen-limited, and this is predicted to increase in some regions. It is therefore of critical interest that biological nitrogen fixation, a process where some bacteria and archaea termed diazotrophs convert nitrogen gas to bioavailable ammonia, has now been detected in the Arctic Ocean. Several studies report diverse and active diazotrophs on various temporal and spatial scales across the Arctic Ocean. Their ecology and biogeochemical impact remain poorly known, and nitrogen fixation is so far absent from models of primary production in the Arctic Ocean. The composition of the diazotroph community appears distinct from other oceans - challenging paradigms of function and regulation of nitrogen fixation. There is evidence of both symbiotic cyanobacterial nitrogen fixation and heterotrophic diazotrophy, but large regions are not yet sampled, and the sparse quantitative data hamper conclusive insights. Hence, it remains to be determined to what extent nitrogen fixation represents a hitherto overlooked source of new nitrogen to consider when predicting future productivity of the Arctic Ocean. Here, we discuss current knowledge on diazotroph distribution, composition, and activity in pelagic and sea ice-associated environments of the Arctic Ocean. Based on this, we identify gaps and outline pertinent research questions in the context of a climate change-influenced Arctic Ocean - with the aim of guiding and encouraging future research on nitrogen fixation in this region.
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