Table 2.

Single and combined effect of MPs and Pb on the electrolyte balance parameters of African catfish (Clarias gariepinus).

	Control	Pb	MPs	MPs + Pb
HCO3(μg/mL)	19.8 ± 1.1a	18 ± 0.4a	14.5 ± 0.3b	13.3 ± 0.5b
Na+ (μg/mL)	126 ± 1.5a	138 ± 3.9b	120 ± 1.3ac	117 ± 0.5c
K+ (μg/mL)	4.1 ± 0.1a	3.7 ± 0.1b	4.1 ± 0.1a	4.4 ± 0.1c
Cl− (μg/mL)	93 ± 2.6a	99 ± 1.8a	82 ± 3.3b	84 ± 2.1b
Fe+2 (μg/mL)	15.5 ± 0.4a	17 ± 0.6b	15.6 ± 0.5a	17.2 ± 0.4b
Ca+2 (μg/mL)	51.4 ± 0.7a	55 ± 0.6b	49 ± 0.5c	47 ± 0.4d
Anion gap	14 ± 2.8a	22 ± 5a	24.2 ± 4a	20.4 ± 2.6a

Data are represented as means ± SE. Values with different superscript letters in the same row for each parameter are significantly different (P < 0.05).