meth_2.18 Porewater nutrients from marine sediment Marine Microbes Coastal Project

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1. Collect a 20 mL pore water sample by centrifuging sediment for nutrients analysis (phosphorus, ammonia, nitrate + nitrite).
2. Analyse phosphorus, ammonia, nitrate + nitrite in 20 mL of pore water using AutoAnalyzer and standard spectrophotometric methods (Strickland & Parsons, 1972; Grasshoff, 1976; Oudot & Montel, 1988).