Nutrients
The analysis of nutrients – ammonium (NH4
þ), oxidised nitrogen
(NOx ¼ NO2
þ NO3
), nitrite (NO2
), soluble reactive phosphorus
(SRP), soluble reactive silicate (SRSi), total nitrogen (TN) and total
phosphorus (TP) – was performed using a Bran þ Luebbe QuAAtro
flow analyser in accordance with the methods described in