Nutrient and Phytoplankton Dynamics along the Ocean Road Sewage Discharge Channel, Dar es Salaam, Tanzania

Table 2

Comparison of the environmental parameters among stations (Dunn’s multiple comparison).

Sites	Dunn’s multiple comparison test results
	Clarity (𝑃=0.0001)	Conductivity	Dissolved oxygen
OR I versus OR II	Na	Ns	Ns
OR I versus OR III	Na	*	Ns
OR I versus MJ I	Na	Ns	Ns
OR I versus MJ II	Na	Ns	***
OR II versus OR III	*	Ns	Ns
OR II versus MJ I	**	Ns	Ns
OR II versus MJ II	Na	Ns	**
OR III versus MJ I	***	**	**
OR III versus MJ II	Na	*	***
MJ I versus MJ II	Na	Ns	Ns

Na: not applicable shallow sites; Ns: not significant; 𝑃>0.05; *significant; 𝑃<0.05; **very significant; ***extremely significant.