Long-term data on species richness (exotic species richness in parenthesis), density (1915–2012, m−2± standard error), and biomass (g m−2, ± standard error, lakewide 2012 only) of Oneida Lake molluscs in Lower South Bay (LSB) and lakewide (LW).

Note: Density data for Lower South Bay is the mean density (m−2) across all samples collected in each study; lakewide densities and biomass for 2012 represent averages weighted by substrate and depth areas. Sphaeriid species richness was not determined, and is excluded from the total number of species. For species-specific data, see Table S1.