A portion of a database (DB) provided by the COBIONET Project team (e.g. Niza et al., 2021). Data sources included biodiversity repositories such as the Global Biodiversity Information Facility (GBIF), museum collections and scientific literature. The DB was already georeferenced (with every entry associated with a latitude and longitude), standardized according to a Darwin Core format, and validated. The original DB was cut for only accounting entries lying between the physical/ geomorphological boundaries of Maputo Bay (MB). The latitudes considered were between -26.10083 and -25.86053, whereas the longitudes ranged between 32.48915 and -25.86053. These resulting DB encompasses the following information for each occurrence: taxonomic level to genus or species; local (name and georeferences) and date of sampling; ecosystem type (e.g. mangrove, seagrass, etc.); habitat occupation; and trophic guild.