. 2020 Jun 22;10:10014. doi: 10.1038/s41598-020-66003-y

Table 1.

Physico-chemical parameters at the Bizerte Lagoon and Bay water. Values are means ± SD; n = 9 for physical parameters and n = 18 for chemical parameters. Means in same row followed by same superscript letter are not significantly different according to the Duncn’s test (P > 0.05).

	BL	BB
Chemical parametres
Nitrate (μ mol L⁻¹)	21.87^a ± 2.17	1.64^b ± 0.59
Ammonium (μ mol L⁻¹)	13.32^a ± 2.80	11.73^a ± 1.91
Orthophosphate (μ mol L⁻¹)	4.53^a ± 0.49	3.54^a ± 0.71
Physical parametres
Secchi depth (m)	2.37^a ± 0.25	4.50^b ± 0.50
Salinity (psu)	35.86^a ± 0.04	36.90^b ± 0.36
Temperature (°C)	17.45^a ± 3.57	19.43^a ± 1.25
Dissolved oxygen (mgL⁻¹)	7.98^a ± 0.02	8.28^a ± 0.71
pH	8.18^a ± 0.07	8.36^a ± 0.16

BL: the Bizerte lagoon; BB: the Bizerte bay; Means in same row followed by same superscript letter are not significantly different (P > 0.05).