No CrossRef data available.
Published online by Cambridge University Press: 05 June 2025
Coastal ecosystems have been subject to anthropogenic environmental stressors. Although exposed to different environmental pressures and susceptible to bioinvasion events, Todos-os-Santos Bay (TSB) (12oS, Bahia State, Brazil) has great ecological importance. Among the bioinvasive organisms, Tubastraea corals (the ‘sun corals’) are widespread in artificial and natural environments of the TSB less frequently. Given the lack of baseline information characterizing the original biofouling communities, surveys approaching the malacofauna under the influence of sun corals are essential to the knowledge of local biodiversity and future losses due to possible environmental changes. To provide information on the diversity of the malacofauna, the gastropods, bivalves, and polyplacophorans in the presence of sun corals at 10 sampling stations in the TSB were investigated. Eighty-one taxa of different size classes (micro- and macromolluscs) and mobility (mobile and sessile) were recorded. These species belong to distinct trophic groups (carnivorous, herbivorous, grazers, parasites, and suspensivorous/passive filtering) and life modes (endolithic, epifauna, infauna, and ectoparasitic). Gastropoda had the highest number of species, followed by Bivalvia and Polyplacophora. Cerithiopsidae and Pyramidellidae were the most representative families. Three exotic species and seven new records were identified for the bay. The malacofauna associated with artificial substrates with the presence of sun coral proved to be complex and diverse.