Replication was five-fold per treatment in experiments 3 and 4. Due to the loss of some plates from the rope in the field, experiments 1 and 2 had 4 replicates per treatment (except in the 5 psu×2 μmol l−1 PO4–P treatment — experiment 1, wherein n=3).
Replication was five-fold pertreatment in experiments 3 and 4. Due to the loss ofsome plates from the rope in the field, experiments 1 and2 had 4 replicates per treatment (except in the5 psu×2 μmol l−1 PO4–P treatment — experiment 1,wherein n=3).