Appendix/Supplementary material. Table and reference list of ecological observations for Greenwich Bay, Rhode Island, used in the assembly for the habitat structure biological condition gradient. Data were assigned to one of ten categories: benthic community, eelgrass extent, hydrodynamics, nutrients, primary productivity, sediment metals concentrations, shellfish, storms, temperature, or water quality. Data were also cataloged by year of observation, duration of observation, a formal citation and whether the data were qualitative or quantitative in nature. The table is organized by time; the reference list is organized alphabetically. Acronyms used in Appendix aRPD apparent Redox Potential Discontinuity BHQ Benthic Habitat Quality (index) DIN Dissolved Inorganic Nitrogen DO Dissolved Oxygen GB Greenwich Bay MSY Maximum Sustainable Yield OSI Organism-Sediment Index PCB Polycyclic Aromatic Hydrocarbon RIDEM Rhode Island Department of Environmental Management SOD Sediment Oxygen Demand SSW South-southwesterly WWTF Waste Water Treatment Facility Appendix references Abdelrhman, MA (2005) Simplified modeling of flushing and residence times in 42 embayments in New England, USA, with special attention to Greenwich Bay, Rhode Island. Estuar Coast Shelf S 62:339-351. Boothroyd JC, August PV (2008) Geologic and contemporary landscapes of the Narragansett Bay ecosystem, in: Desbonnet A, Costa-Pierce BA (Eds), Science for Ecosystem-based Management: Narragansett Bay in the 21st Century. Springer, New York, pp. 1-33. 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