Seasonal variability of nitrate, phosphate, and silicate (μM) of the averaged surface and averaged depth waters in the Arabian Gulf, Hormuz, and the Sea of Oman extracted from the monthly climatology of the World Ocean Atlas Data (WOA) for the year 2018.

The WOA data are climatological data collected from the periods 1900–2017. The calculation of the average depth waters is based on the average of several depths. Summer (June, July, August); winter (December, January, February).