Mangrove (Hara) forests: Mangrove species the scientific name of the Iranian philosopher Hakim and Abu Ali Sina (Avicennia Marina) is attributed. Mangrove trees are habitats saltwater. Mangrove forests in Iran to begin from the East Sea of Oman in Gwadar Port and it end In the West of the Persian Gulf with increase latitude in the habitats of the Naiband in Bushehr Province. Time of the flow sea go down the forest in to the water. Sea water is purified by the organism that is in the skin of the trees. The trees, salt water of the sea absorb and disposal salt of it. Mangrove trees in fact are the natural factory fresh water.

Morphological features: Height of the Mangrove (Hara) tree is 4 meter and more. In Iran is different height that has seen height of 8 meter. The trunk of a tree is high and smooth. The bark of it is simple, thick. The flowers are white inclined to yellow.Height of the Mangrove tree is 4 meter and more. In Iran is different height that has seen height of 8 meter. The trunk of a tree is high and smooth. The bark of it is simple, thick. The flowers are white inclined to yellow. Types of the Clams, Invertebrate, Vertebrate, Gastropods are animal communities in Hara forests Iran.