Water Quality Dynamics in Arabian Gulf Coastal Ecosystems
Summary
The coastal waters of the Arabian Gulf exhibit marked variability in water quality driven by a combination of natural processes and intensive human activities. Extreme temperature and salinity gradients interact with seasonal monsoons and tidal regimes to regulate the distribution of nutrients, dissolved oxygen and suspended particles. Rapid coastal urbanisation, desalination discharges and oil and gas production introduce elevated loads of nutrients, organic matter and chemical contaminants, while episodic events such as dust storms and storm surges resuspend sediments and alter light penetration. These dynamics influence key habitats—including coral reefs, mangroves and seagrass meadows—by modifying primary productivity, altering microbial communities and shifting trophic interactions. Advances in in situ monitoring, remote sensing and numerical modelling have begun to unravel the spatial and temporal patterns of these interacting stressors. A holistic understanding of water quality dynamics is essential to inform adaptive management, protect biodiversity and sustain fisheries in this semi-enclosed, climatically sensitive region.
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Water Quality Dynamics in Arabian Gulf Coastal Ecosystems publication trend
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Technical terms
Eutrophication: Enrichment of water by nutrients, especially nitrogen and phosphorus, leading to excessive algal growth.
Turbidity: Cloudiness of water caused by suspended particles, which can reduce light penetration and affect photosynthesis.
Biological Oxygen Demand (BOD): Amount of dissolved oxygen consumed by microorganisms in decomposing organic matter over a specified period.
Total Suspended Solids (TSS): Concentration of undissolved particles suspended in water, indicative of sediment load and water clarity.
Trophic State: Nutrient status of a water body, ranging from oligotrophic (low productivity) to eutrophic (high productivity).
References
- Development of standards for assessing water quality in marine coastal waters of Bahrain. Marine Pollution Bulletin (2023).
- Environmental Impact of Sewage Discharge on Shallow Embayment and Mapping of Microbial Indicators. Frontiers in Environmental Science (2022).
- Seasonal and Temporal Drivers Influencing Phytoplankton Community in Kuwait Marine Waters: Documenting a Changing Landscape in the Gulf. Frontiers in Marine Science (2019).
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