This index was chosen as it is less affected by the
abundance of common species (Magurran 2004). Biodiversity
Pro version 2 (The National History Museum and The Scottish
Association for Marine Science) and EstimateS software version
9.1.0 (Robert K. Colwell, University of Connecticut) [http://
viceroy.eeb.uconn.edu/estimates] were the two statistical
programs used for deriving various ecological parameters.