caa a22 4500 465792715 CHVBK 20180323112029.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.2307/1351786 doi (NATIONALLICENCE)springer-10.2307/1351786 Control of nutrient concentrations in the Seekonk-Providence River region of Narragansett Bay, Rhode Island [Elektronische Daten] [P. Doering, C. Oviatt, M. Pilson] Six synoptic samplings of nutrient concentrations of the water column and point-source inputs (rivers, sewage treatment plants) were conducted in the Seekonk-Providence River region of Narragansett Bay. Concentrations of nutrients (NH4 +, NO2 −+NO3 −, PO4 −3, dissolved silicon, particulate N, particulate C) were predicted using a conservative, two-layer box model in order to assess the relative influence of external inputs and internal processes on observed concentrations. Although most nutrients were clearly affected by processes internal to the system, external input and mixing explained most of the variability in and absolute magnitude of observed concentrations, especially for dissolved constituents. In the bay as a whole, two functionally distinct regions can now be identified: the Seekonk-Providence River, where dissolved nutrient concentrations are externally controlled and lower Narragansett Bay where internal processes regulate the behavior of nutrients. A preliminary nitrogen budget suggests that the Seekonk-Providence River exports some 95% of the nitrogen entering the system via point sources and bottom water from upper Narragansett Bay. Estuarine Research Federation, 1990 Doering P. Marine Ecosystems Research Laboratory Graduate School of Oceanography, University of Rhode Island, 02882-1197, Narragansett, Rhode Island aut Oviatt C. Marine Ecosystems Research Laboratory Graduate School of Oceanography, University of Rhode Island, 02882-1197, Narragansett, Rhode Island aut Pilson M. Marine Ecosystems Research Laboratory Graduate School of Oceanography, University of Rhode Island, 02882-1197, Narragansett, Rhode Island aut Estuaries Springer-Verlag 13/4(1990-12-01), 418-430 0160-8347 13:4<418 1990 13 12237 https://doi.org/10.2307/1351786 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.2307/1351786 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Doering P. Marine Ecosystems Research Laboratory Graduate School of Oceanography, University of Rhode Island, 02882-1197, Narragansett, Rhode Island aut NATIONALLICENCE 700 1- Oviatt C. Marine Ecosystems Research Laboratory Graduate School of Oceanography, University of Rhode Island, 02882-1197, Narragansett, Rhode Island aut NATIONALLICENCE 700 1- Pilson M. Marine Ecosystems Research Laboratory Graduate School of Oceanography, University of Rhode Island, 02882-1197, Narragansett, Rhode Island aut NATIONALLICENCE 773 0- Estuaries Springer-Verlag 13/4(1990-12-01), 418-430 0160-8347 13:4<418 1990 13 12237 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer