Moreover, previous studies have shown that phytoplanktonand submerged macrophytes can rapidly remove nutrients from
the water column (Zhang et al., 2011), and the over-enrichmentof coastal ecosystems can rarely be detected through direct measurementsof the water column nutrient concentrations. Thus, itis necessary to identify proper bioindicators for the evaluation ofthe influence of nutrient loading originating from human activities
on seagrass meadows.