Investigating Marine Microbial Diversity: Metagenomic Perspectives on Ecosystem Functionality and Environmental Adaptation Dynamics

The marine environment, encompassing over 70% of the Earth's surface, hosts diverse microbial communities vital for nutrient cycling, carbon assimilation, and organic matter decomposition. Despite their ecological significance, the diversity and functionality of these microorganisms remain underexplored, particularly in the face of global environmental changes. This study employs metagenomic sequencing combined with bioinformatics tools, Kraken and Bracken, to analyze marine microbial communities. These methods provide rapid and accurate taxonomic classification and abundance estimation, overcoming the limitations of traditional approaches. Taxonomic profiling and comparative analysis were conducted across various marine settings, revealing patterns of microbial diversity and abundance. The results highlight the ecological roles of marine microbes and their responses to environmental changes, offering insights into addressing global issues such as climate change, pollution, and biodiversity loss. This research contributes to advancing our understanding of marine microbiomes, supporting efforts in ocean conservation and sustainable resource management.