Sediment oxygen demand and benthic foraminiferal faunas in the Arabian Gulf: A test of the method on a siliciclastic substrate |
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| Authors: | Thomas F Garrison Michael A Kaminski Bassam Tawabini Fabrizio Frontalini |
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| Institution: | 1. Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;2. Geosciences Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;3. Department of Pure and Applied Sciences, University of Urbino, 61029 Urbino, Italy |
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| Abstract: | In this study, we investigated the relationship between environmental parameters (water and sediment) and benthic foraminiferal assemblages found in nearshore siliciclastic sediment in the Arabian Gulf. Nearshore marine water and sediment samples were collected from a beach on the Gulf of Bahrain located south of Al Khobar, Saudi Arabia. The water samples were analyzed for biochemical oxygen demand (BOD5) and other chemical analyses. The sediment samples were tested for sediment oxygen demand (SOD) and heavy metal analysis. Results showed the BOD5 levels were below the detection limit (<1 ppm), while the mean SOD value was 0.97 ± 0.08 g/m2·day. The water and sediments were unpolluted and free of eutrophic enrichment, while the sediment was anoxic. The two most common genera in the benthic foraminiferal assemblage, Ammonia and Elphidium, are typical of shallow water sandy substrates. This is the first reported comparison between SOD and benthic foraminiferal assemblages. |
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| Keywords: | Foraminifera Sediment oxygen demand Biochemical oxygen demand Arabian Gulf |
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