International Journal of Life Science and Agriculture Research

Archaea are influenced by environmental conditions in various ecosystems and are essential to global biogeochemical cycles. By contrasting healthy and dead lakes, this study examines the vertical stratification of archaeal populations in lake sediments. Archaea play a role in the breakdown of organic matter, the oxidation of ammonia, and the formation of methane. The study investigates the effects of temperature variations, nutrition availability, redox conditions, and oxygen gradients on archaeal diversity and distribution. The study highlights the importance of archaea in preserving ecosystem health, especially in sedimentary contexts, using DNA sequencing, community analysis, and environmental characterization. The results demonstrate that although dead lakes, which are defined by oxygen depletion and changed redox gradients, show decreased diversity and ecological services, healthy lakes sustain a variety of archaeal populations. Gaining knowledge of these microbial communities can help us better understand how resilient aquatic ecosystems are to environmental stresses like eutrophication and climate change, as well as the potential for ecological restoration. The study emphasizes how crucial archaea are to preserving the health of ecosystems and how their dispersion affects the maintenance of aquatic environments. 

Archaeal communities, Sediment stratification, Biogeochemical cycles, Ecosystem resilience

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