Water Physicochemistry and Zooplankton Fauna of Aiba Reservoir Headwater Streams, Iwo, Nigeria

Table 8

Relationships of water physicochemical parameters with zooplankton fauna in Aiba Reservoir headwater streams (May 2013–March 2014).

Parameter	Pearson’s correlation with number of species		Pearson’s correlation with abundance		Pearson’s correlation with species diversity,
	Aiba stream ( = 12)	Onikan stream ( = 12)	Aiba stream ( = 12)	Onikan stream ( = 12)	Aiba stream ( = 12)	Onikan stream ( = 12)
Water temperature (°C)	0.3247	0.0767	0.7052	0.4206	0.0927	−0.3132
Water depth (m)	0.2341	0.4530	0.4322	0.4717	0.2251	0.3366
Secchi depth (m)	0.5967	0.3613	0.4162	0.4703	0.4331	0.1469
Channel width (m)	0.1029	0.4597	0.0530	0.4528	0.3319	0.2586
Flow velocity (m/s)	−0.0627	−0.4299	0.4801	−0.4065	0.0795	−0.2110
Discharge (m^3/s)	−0.0876	−0.3910	0.5273	−0.4080	−0.0170	−0.0283
TS (mg/L)	−0.5998	−0.7316	−0.3196	−0.6635	−0.5276	−0.3429
TSS (mg/L)	−0.6013	−0.5421	−0.4144	−0.6810	−0.4700	−0.0211
TDS (mg/L)	−0.3528	−0.3216	0.2980	−0.0739	−0.6570	−0.4187
pH	0.5288	−0.1543	−0.1446	−0.2174	0.7457	0.0242
Electrical conductivity (S/cm)	−0.1503	−0.1138	−0.1056	0.0408	−0.3848	−0.0356
Total alkalinity	0.1440	−0.1706	−0.2277	−0.5160	0.3882	0.3406
(mg/L)	0.0909	−0.0139	0.2387	0.2556	−0.0894	−0.1299
(mg/L)	0.2873	−0.0028	0.3064	0.2801	−0.0918	−0.1353
Dissolved oxygen (mg/L)	0.5436	−0.0024	0.8219	0.3985	0.2962	−0.4751

= 12; = 0.5324, ; = 0.6614, < 0.01; = 0.7800, < 0.001.
Significant; highly significant; very highly significant.