Table 1.

Indicator value (IndVal) analyses based on sediment and seawater samples collected at 14 sites in Okinawa, Japan and 18 S rRNA sequences for low, medium, and high anthropogenic pressure sites.

	Low pressure			Medium pressure			High pressure
	Family	Common name	stat/P	Family	Common name	stat/P	Family	Common name	stat/P
Sediment				Capitellidae	Polychaete worms	0.89/0.050	Capitellidae	Polychaete worms	0.89/0.050
							Chitonidae	Chitons	0.87/0.022
							Macrostomidae	Free-living flatworms	0.87/0.016
							Naididae	Sewage worms	0.87/0.018
Water	Agalmatidae	Siphonophores	0.82/0.021	Veneridae	Venus clams	1.00/0.003	Veneridae	Venus clams	1.00/0.003
	Kareniaceae	Dinoflagellates	0.82/0.046	Dictyotaceae	Brown algae	0.93/0.017	Dictyotaceae	Brown algae	0.93/0.017
	Prymnesiaceae	Siliceous haptophytes	0.82/0.037	Sargassaceae	Marine algae	0.87/0.011	Sargassaceae	Marine algae	0.87/0.011
	Ceratiaceae	Siliceous haptophytes	0.80/0.049	Callyspongiidae	Demosponges	0.79/0.047	Callyspongiidae	Demosponges	0.79/0.047
	Petrosiidae	Demosponges	0.80/0.046	Haminoeidae	Bubble snails	0.79/0.029	Haminoeidae	Bubble snails	0.79/0.029
							Rhodellaceae	Marine algae	0.89/0.012
							Bicosoecidae	Unicellular flagellates	0.87/0.030
							Labyrinthula	Marine slime molds	0.87/0.025
							Fragilariaceae	Marine algae	0.84/0.035

P-values were selected at a 0.05 significance level.