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Nutrient Dynamics Of The San Francisco Estuary, Kirsten Wong, Rhea Quezon

Creative Activity and Research Day - CARD

Over the last few decades, the San Francisco Estuary has experienced a decline in primary productivity that has resulted in the scarcity of food at higher trophic levels. Previous literature has attributed this decline in primary productivity to the increased grazing of the invasive clam, Potamocorbula amurensis. However, there have been occasions of phytoplankton blooms during times of high P. amurensis abundance. This conundrum has been deemed the “clam paradox.” Through a literature review, we have investigated that increased clam grazing is not solely responsible for the decline of primary productivity. Rather, the NH4 excreted from P. amurensis combined with …