Mangroves are a multifunctional and unique component of marine ecosystem as it provide nursery to marine animal, protection from high waves, floods, cyclone, as store blue carbon. Mangrove forest support diversified macroalgae in their community. Typically mangrove occurs near shoreline, in intertidal zone of coast, deltas, estuaries, lagoons and muddy flats. This study conducted to assess the habitat characteristics of mangrove macroalgae at Gopnath coast Bhavnagar District, Gujarat, India. Coast of Gopnath contains 1 true mangrove species Avicennia marina (Forsk.) Vierh. One group of macroalgae were recorded to be growing on mangrove root and mangrove field, total 4 species of green algae recorded during this study.

Keywords : Macroalgae, Mangroves, Habitat characteristic, Diversity