Density and biomass of most important macrobenthos taxa and families and nematoda genera for monthly samples of the upper layer of a <i>Ceriops tagal</i> sediment at Gazi Bay. Additionally sediment granulometry and abiotic parameters were measured. The data were digitized by VLIZ from the original report: Pratiwi, R. (1995). Community structure and seasonal fluctuation of macrobenthos of Ceriops tagal mangrove sediments at Gazi Bay, Kenya. MSc Thesis. Universiteit Gent - Faculteit Wetenschappen, Vakgroep Biologie: Gent. 106 pp.