Positive responses of benthic macroinvertebrates to spatial and temporal reductions in water pollution downstream from a trout farm outlet | Knowledge and Management of Aquatic Ecosystems

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Table 3

Pearson's correlation coefficients (n = 8) between physicochemical parameters and biological metrics and indices.

	Diversity	Density	Biomass	OC%	EPT%	t-BMWQ	a-BMWQ
Water velocity	0.924^*	0.435	0.157	−0.839^*	0.807	0.871^*	0.830
Temperature	0.529	−0.425	−0.683	−0.692	0.683	0.626	0.705
pH	0.738	−0.146	−0.417	−0.824	0.794	0.793	0.856^*
Conductivity	−0.215	0.598	0.650	0.491	−0.376	−0.334	−0.378
Dissolved oxygen	0.883^*	−0.112	−0.429	−0.964^*	0.942^*	0.936^*	0.967^*
Total ammonia	−0.584	0.362	0.608	0.724	−0.703	−0.675	−0.769
Phosphate	−0.721	0.241	0.534	0.829	−0.817	−0.801	−0.877^*
Turbidity	−0.839^*	−0.105	0.178	0.843^*	−0.809	−0.835^*	−0.874^*

Significant (P < 0.01) coefficients are indicated by asterisk.

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