The Relationship between Benthic Macroinvertebrate Assemblages and Water Quality Parameters in the Sanyati Basin, Lake Kariba, Zimbabwe

Table 6

Spearman rank correlation coefficients (r) between physicochemical variables and macroinvertebrate metrics in Sanyati Basin, with significant correlations highlighted as () and ().

	Temperature (°C)	pH	Conductivity (μScm^−1)	Turbidity (NTU)	DO (mg/L)	NH4-N (mg/L)	NO3-N (µ/L)	TN (mg/L)	PO4-P (µ/L)	TP (mg/L)
%Ephemeroptera	−0.14	−0.37	−0.31	−0.15	0.31	−0.30	−0.34	−0.27	−0.41	−0.37
%Trichoptera	−0.19	−0.46	−0.57	−0.36	0.35	−0.45	−0.47	−0.38	−0.40	−0.48
%Diptera	0.50	0.17	0.76	0.45	−0.82	0.70	0.60	0.71	0.78	0.73
%EPT	−0.18	−0.10	−0.60	−0.23	0.39	−0.41	−0.44	−0.32	−0.48	−0.52
Taxa richness	−0.70	0.04	−0.58	−0.48	0.57	−0.47	−0.42	−0.39	−0.55	0.55
Dominance (D)	0.51	−0.04	0.70	0.47	−0.69	0.63	0.62	0.59	0.70	−0.69
Shannon-Wiener (H)	−0.60	0.32	−0.67	−0.45	0.67	−0.56	−0.54	−0.54	−0.67	−0.67
Pielou evenness (J)	0.27	0.32	−0.21	0.14	0.25	−0.26	−0.31	−0.47	−0.29	−0.17
Margalef (Dmg)	−0.68	−0.05	−0.57	−0.47	0.55	−0.46	−0.39	−0.033	−0.54	−0.57
SASS	0.34	0.79	−0.67	−0.64	0.87	−0.56	−0.61	−0.62	−0.56	−0.58
ASPT	0.33	0.79	−0.66	−0.67	0.84	−0.55	−0.63	−0.66	−0.52	−0.56