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The Journal of the Royal Institute of Thailand Volume IV - 2012 66  Mangrove Fauna Mangrove forests provide food and habitats for faunistic populations including fresh water, marine and terrestrial populations which are of considerable size and variety. The diversity of fauna within the mangroves is high due to ample food, resources and a wide range of microhabitats. These encompass shrimps, fi shes, crabs, molluscs, birds, reptiles, amphibians and mammals. Mangrove Shrimps There are approximately 15 species of shrimps that are found in mangroves. There are four important families of shrimp species, namely Penaeidae, Pelaemonidae, Alpheidae and Ogyridae. The genera Penaeus and Metapenaeus are found in abundance, especially Penaeus merguiensis , Penaeus monodon , Penaeus indica, Metapenaeus ensis and Metapenaeus hungerfordi . Other shrimp species like Palaemon semmelinkii , Alpheaus euphrosyne and Ogyrides sp are also found in mangrove forests. However, species of banana prawn ( Penaeus merguiensis) and giant tiger prawn ( Penaeus monodon) have the highest commercial value. There are Rhizophora Bruguiera Xylocarpus Figure 8: Some important tree species in mangrove forests; Rhizophora, Bruguiera and Xylocarpus. Mangroves … Coastal Treasure of Thailand