Which species of marine mangrove tree is native to Bahrain, forming critical intertidal wetland ecosystems in Tubli Bay?

Answer and explanation

Correct answer: A. Black mangrove (Avicennia marina)

  1. Step 1: Avicennia marina (known locally as Qurm) is the only native mangrove species occurring naturally in Bahrain and the Arabian Gulf.
  2. Step 2: It possesses remarkable tolerance to high salinity and extreme temperatures, using pneumatophores to absorb oxygen at low tide.
Answer
Black mangrove (Avicennia marina).
Why not the others: 'Red mangrove (Rhizophora mangle)' is native to the Americas and West Africa; 'White mangrove (Laguncularia racemosa)' grows in the Caribbean and West Africa; 'Buttonwood (Conocarpus erectus)' is a terrestrial associate.

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