Tidal Influence on Nutrients Status and Phytoplankton Population of Okpoka Creek, Upper Bonny Estuary, Nigeria

Table 2

Variations of water nutrients in relation to tide in Okpoka Creek.

Tide	Ammonia (mg/L)	Nitrate (mg/L)	Phosphate (mg/L)	Sulphate (mg/L)
Low	0.17±0.01^a	0.68±0.02^a	0.77±0.05^a	586.11±36.42^a
High	0.19±0.02^a	0.48±0.04^b	0.29±0.07^b	459.09±33.89^a

Means with the same letter in the same column are not significantly different (𝑃>0.05).