ArticleNPJ biofilms and microbiomes2017
Hidden biofilms in a far northern lake and implications for the changing Arctic.
Article in NPJ biofilms and microbiomes, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Bacterial divergence among the interconnected habitats of a High Arctic Lake.FEMS microbiology ecology · 2025Article
- An astrobiological perspective on microbial biofilms: their importance for habitability and production of detectable and lasting biosignatures.Applied and environmental microbiology · 2025Review
- Arctic cyanobacterial mat community diversity decreases with latitude across the Canadian Arctic.FEMS microbiology ecology · 2024Article
- Polar lake microbiomes have distinct evolutionary histories.Science advances · 2023Article
- Modeling Virus and Bacteria Populations in Europa's Subsurface Ocean.Life (Basel, Switzerland) · 2022Article
- Local Habitat Filtering Shapes Microbial Community Structure in Four Closely Spaced Lakes in the High Arctic.Frontiers in microbiology · 2022Article
- Water column gradients beneath the summer ice of a High Arctic freshwater lake as indicators of sensitivity to climate change.Scientific reports · 2021Article
- Changes in the Community Structure of Under-Ice and Open-Water Microbiomes in Urban Lakes Exposed to Road Salts.Frontiers in microbiology · 2021Article
- Warming Climate Is Reducing the Diversity of Dominant Microbes in the Largest High Arctic Lake.Frontiers in microbiology · 2020Article
- A simple method to produce Synechocystis PCC6803 biofilm under laboratory conditions for electron microscopic and functional studies.PloS one · 2020Article
- Microbial connectivity and sorting in a High Arctic watershed.The ISME journal · 2018Article
- Physicochemical Drivers of Microbial Community Structure in Sediments of Lake Hazen, Nunavut, Canada.Frontiers in microbiology · 2018Article
- Multiple Strategies for Light-Harvesting, Photoprotection, and Carbon Flow in High Latitude Microbial Mats.Frontiers in microbiology · 2018Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Shallow lakes are common across the Arctic landscape and their ecosystem productivity is often dominated by benthic, cyanobacterial biofilms. Many of these water bodies freeze to the bottom and are biologically inactive during winter, but full freeze-up is becoming less common with Arctic warming. Here we analyzed the microbiome structure of newly discovered biofilms at the deepest site of a perennially ice-covered High Arctic lake as a model of polar microbial communities that remain unfrozen throughout the year. Biofilms were also sampled from the lake's shallow moat region that melts out and refreezes to the bottom annually. Using high throughput small subunit ribosomal RNA sequencing, we found more taxonomic richness in Bacteria, Archaea and microbial eukaryotes in the perennially unfrozen biofilms compared to moat communities. The deep communities contained both aerobic and anaerobic taxa including denitrifiers, sulfate reducers, and methanogenic Archaea. The water overlying the deep biofilms was well oxygenated in mid-summer but almost devoid of oxygen in spring, indicating anoxia during winter. Seasonally alternating oxic-anoxic regimes may become increasingly widespread in polar biofilms as fewer lakes and ponds freeze to the bottom, favoring prolonged anaerobic metabolism and greenhouse gas production during winter darkness.
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Registered trials
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