Sites - Important Bird and Biodiversity Areas (IBAs)
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50o 34.33' East 26o 10.39' North
0 - 5m
Year of IBA assessment
Bahrain Natural History Society (Affiliate)
Site description A shallow, sheltered bay in an urban/industrial area, with saltmarsh vegetation, extensive mudflats (mainly on the east side) and a large area of mangrove Avicennia (the last remaining area in the country) in the south-west corner of the bay at Sanad. Tidal amplitude is up to 2.5 m and salinity exceeds 4.0%. There are many freshwater springs offshore and onshore, the latter associated with Phragmites reedbeds and date-palm gardens. The bay is an important spawning and nursery area for fish and prawns. It receives irrigation run-off from the date gardens and also fully treated sewage effluent.
Key Biodiversity The most important site in the country for migrating and wintering coastal waterbirds. See box for key species. Other wintering species include Egretta garzetta (100), Charadrius hiaticula (300), Calidris minuta (1,000), Arenaria interpres (250), Larus ichthyaetus (150) and Larus ridibundus (2,000).
Non-bird biodiversity: None known to BirdLife International.
Notes: Albeit the decline in fisheries stocks, fishing with traditional methods (e.g. barrier-traps, hemisphere wire traps as well as hocks and line) are still practiced in Tubli Bay. Drifted filamentous green macro-algae are regularly collected for baiting purposes. Three mooring sites used by small and medium vessels are located in Tubli Bay.
nature conservation and research
Notes: Tubli Bay is regularly researched by college students and immature scientists, particularly Ras Sanad mangrove swamp. Opportunistic physiochemical and ecological monitoring studies are often carried out by specialized scientists.
Notes: Tubli Bay attracts a number of families on weekends. Boat trips to the eastern boundaries of Ras Sanad mangrove swamp are organized by local fishermen. Artisanal line fishing from Sitra Causeway peaks during weekends and school holidays. Opportunistic bird watching is practiced at selected intertidal sites.
Notes: The coastline is bordered by a number of small villages as well as steadily-spreading recently-developed private villas. Sitra Causeway crosses Tubli Bay from north to south. Constructed on a reclaimed land, a major highway passes along the northern coastline.
energy production and mining
Notes: Five sandwashing, a major sewage and a power/desalination plants are situated along the eastern, southern and western coasts of Tubli Bay.
Notes: Large farms are sited along the western, eastern and southern coasts. The farms are cultivated with date palms inter-cropped with introduced vegetable crops and alfalfa.
Acknowledgements Data-sheet compiled by Dr S. A. Mohamed and E. Hirschfeld.
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BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Tubli Bay. Downloaded from
http://www.birdlife.org on 31/05/2016
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