Table 3. Mean water quality parameters of Terrie River in dry and wet seasons

Parameter	Season	Mean	SE	t-test	df	p-value
DO (mg/L)	Dry	5.13	0.21	5.117	14	0.000***
	Wet	3.91	0.12
pH	Dry	8.79	0.06	0.033	14	0.974
	Wet	8.79	0.09
Tem (°C)	Dry	28.08	0.20	2.810	14	0.014**
	Wet	27.16	0.25
Trans (cm)	Dry	11.75	0.59	7.333	14	0.000***
	Wet	7.00	0.27
Cond (µS/cm)	Dry	301.88	6.20	3.620	14	0.003**
	Wet	345.00	10.18
PO4 (mg/L)	Dry	0.9212	0.15	1.302	14	0.214
	Wet	1.1250	0.05
NO3 (mg/L)	Dry	3.2575	0.28	0.838	14	0.416
	Wet	3.5262	0.16
NH3 (mg/L)	Dry	1.8038	0.19	2.654	14	0.019**
	Wet	2.4288	0.13
TDS (mg/L)	Dry	171.62	1.57	0.506	14	0.621
	Wet	170.00	2.80

significant;
highly significant;
very highly significant.