Chemical Observations in the Arabian Gulf and the Gulf of Oman PDF

Keywords

Arabian Gulf, salinity, nutrient species

Abstract

Salinity and nutrient species were measured in the Arabian Gulf and the Gulf of Oman during the period 1984-1986. Statistical analysis in the results showed clearly three distinct types of seawater in the area. First is the proper water of the Arabian Gulf with salinity ≥ 40%, silicate from 2.6 to 9.3 µmole l^-1, phosphate 0.14 ± 0.02 µmole l^-1 and nitrate 0.21 ± 0.02 µmole l^-1. Second is the seawater of the Gulf of Oman with salinity ≤ 37%, silicate 3.1 ± 0.3 µmole l^-1, phosphate 0.47 ± 0.05 µmole l^-1 and nitrate 0.41 ± 0.05 µmole l^-1. Third is a mixed water, which has intermediate values of the measured elements. The calculated ratios P:N:Si indicate the nitrogen in the Arabian Gulf.