3.2. Biotic variables
The statistical results show that the differences in most of the biological parameters, with the exception of the FAA content in the root and rhizome tissues and the chlorophyll content (Table 2), are pronounced between the sites. Moreover, significant differences were found in the N and P contents of the different tissues, the leaf length, and the epiphytic algae biomass between the transects and/or intertidal zones (Table 3). We present the variation trends with arrows in Fig. 3.