Table 3. Pearson correlation coefficients between biotic response variables and environmental factors (water depth, light supply PAR and current velocity).

	Low nase density (I)			Intermediate nase density (II)			High nase density (III)
	Water depth	PAR	Current velocity	Water depth	PAR	Current velocity	PAR	Current velocity
Exclosure
Chl a	0.89*	−0.31	0.58	0.02	−0.36	0.75*	0.60	0.24
AFDM	0.62	0.03	0.60	−0.07	−0.12	0.72*	0.62	0.23
Grazer biomass	−0.36	0.75*	0.44	−0.57	0.48	0.58	0.57	0.18
Control
Chl a	0.72*	−0.15	0.50	−0.23	0.44	−0.22	0.45	0.51
AFDM	0.64	0.03	0.51	−0.03	0.21	−0.36	0.44	0.44
Grazer biomass	−0.83*	0.68*	0.73*	−0.32	0.41	0.40	−0.02	0.48

Notes.

^*Significant (p < 0.05).