Phytoplankton serve as the foundation of aquatic ecosystems by performing photosynthesis and producing a significant portion of the Earth's oxygen. These microscopic organisms are critical for the food web, supporting various marine species, including fish and zooplankton. Phytoplankton also absorb carbon dioxide, helping to regulate atmospheric CO2 levels and combat climate change. Their abundance and diversity impact overall ecosystem health and productivity. Consequently, monitoring phytoplankton populations is essential for understanding changes in marine environments and assessing the impacts of climate change.