ArticleNature communications2021
Anoxic chlorophyll maximum enhances local organic matter remineralization and nitrogen loss in Lake Tanganyika.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Seasonality of lake microbial denitrification and its sensitivity to climate warming.Nature microbiology · 2026Article
- Size fractionation informs microbial community composition and interactions in the eastern tropical North Pacific Ocean.FEMS microbes · 2024Article
- Hydrodynamic regimes modulate nitrogen fixation and the mode of diazotrophy in Lake Tanganyika.Nature communications · 2023Article
- Nitrite accumulation and anammox bacterial niche partitioning in Arctic Mid-Ocean Ridge sediments.ISME communications · 2023Article
- Isotopic signatures induced by upwelling reveal regional fish stocks in Lake Tanganyika.PloS one · 2023Article
- Article
- Changes of endophytic microbial community inFrontiers in microbiology · 2022Article
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Authors and funding
5 authors.
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Abstract
In marine and freshwater oxygen-deficient zones, the remineralization of sinking organic matter from the photic zone is central to driving nitrogen loss. Deep blooms of photosynthetic bacteria, which form the suboxic/anoxic chlorophyll maximum (ACM), widespread in aquatic ecosystems, may also contribute to the local input of organic matter. Yet, the influence of the ACM on nitrogen and carbon cycling remains poorly understood. Using a suite of stable isotope tracer experiments, we examined the transformation of nitrogen and carbon under an ACM (comprising of Chlorobiaceae and Synechococcales) and a non-ACM scenario in the anoxic zone of Lake Tanganyika. We find that the ACM hosts a tight coupling of photo/litho-autotrophic and heterotrophic processes. In particular, the ACM was a hotspot of organic matter remineralization that controlled an important supply of ammonium driving a nitrification-anammox coupling, and thereby played a key role in regulating nitrogen loss in the oxygen-deficient zone.
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