uid=PIE,o=lter,dc=ecoinformatics,dc=org all public read BEN-PR-Flux.04 Plum Island Ecosystems LTER Program Anne Giblin

Ecosystems Center MBL 7 MBLSt Woods Hole MA 02543 USA

Plum Island Ecosystems LTER Program Chuck Hopkinson

University of Georgia 229 Marine Sciences Athens GA 30602 USA

Plum Island Ecosystems LTER Program

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Jane Tucker additional investigator Hap Garritt additional investigator Nat Weston additional investigator Josh Goldstein additional investigator Greg Peterson additional investigator Sam Kelsey additional investigator Dave Vasiliou additional investigator Ishi Buffam additional investigator John Logan additional investigator Corey Lawrence additional investigator Emily Gaines additional investigator William Lee additional investigator Christina Maki additional investigator Aaron Strong additional investigator Rebecca Prosser additional investigator Colin Millar additional investigator 2000 Rates of benthic metabolism and nutrient cycling in the Parker and Rowley Rivers of the Plum Island Sound estuary. Measurements are conducted throughout the estuary over a variety of salinities and seasons. Seasons include Spring (high river discharge) and Fall (low discharge). LTER PIE Plum Island Ecosystems Massachusetts Parker River Rowley River inorganic nutrients disturbance sediment benthos metabolism respiration nutrient cycling sediment-water exchange flux ammonium nitrate phosphate methane nitrous oxide dissolved inorganic carbon oxygen Acceptance and utilization of PIE-LTER data requires that: The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions. The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications A copy of any resultant publications should be sent to: Principal Investigator Ecosystems Center Marine Biological Laboratory Woods Hole, MA 02543 http://ecosystems.mbl.edu/PIE/data/BEN/BEN-PR-Flux.html Parker R, ~22 km upstream of reference -70.917329 -70.917329 42.749889 42.749889 ParkerR, ~22 km upstream of reference, intertidal bank -70.917329 -70.917329 42.749889 42.749889 Pond above the Parker R. dam, or 24.2 km upstream of reference -70.929096 -70.929096 42.749722 42.749722 Parker R., ~24 km upstream of reference, just downstream of the Parker R. dam -70.92756 -70.92756 42.75085 42.75085 Parker R., ~14 km upstream of reference, just downstream of the mouth of the Mill R. -70.872904 -70.872904 42.754838 42.754838 Parker R., ~11 km upstream of reference, just downstream of the Route 1A Town Landing -70.83861 -70.83861 42.7613 42.7613 Rowley R., ~5.5 km upstream of reference, at the mouth of the Rowley R; Hog Island Pt. -70.813637 -70.813637 42.727187 42.727187 Parker R.,~23.5 km upstream of reference -70.924641 -70.924641 42.751378 42.751378 Parker R.,~23.5 km upstream of reference, intertidal bank -70.924641 -70.924641 42.751378 42.751378 Eagle R., upstream fork of Rowley River, ~13 km from reference -70.862546 -70.862546 42.707363 42.707363 Eagle R., upstream fork of Rowley River, ~13.5 km from reference -70.864021 -70.864021 42.704942 42.704942 Eagle R., upstream fork of Rowley River, ~14 km from reference -70.866069 -70.866069 42.702635 42.702635 1993-06-15 2009-08-26 Version 01 contained data through 29 Sept 2003. Version 02 updates the dataset through 12 Sept 2006. Version 03 updated/edited latitude and longtitude locations Version 04 21Jan2010 updated metadata and data Data Manager

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Plum Island Ecosystems LTER

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Benthic respiration and nutrient fluxes were measured in sediment cores incubated in the dark and at in situ temperatures in the laboratory. Incubation duration was determined by the time required for oxygen concentrations to fall by 2 to 5 mg O2 L-1 but remain above 50% of saturation (generally 6 to 48 hrs). Dissolved inorganic nitrogen and phosphorus were measured at at least 4 time points concurrent with O2 measurements. At the beginning and end of the incubation period, samples were taken for total CO2 (TCO2 or DIC) analyses. Dissolved organic carbon (DOC), total dissolved nitrogen (TDN), N2O, and methane (CH4) were also measured during some fluxes. See ANALYTICAL METHODS. Benthic respiration [based on O2, CO2 or CH4] and nutrient flux across the sediment-water interface were calculated as the slope of the constituent concentration versus time. Respiration values were corrected for changes in the water overlying the cores by subtracting constituent consumption measured in BOD bottles. Values are means of 2 to 4 cores. NOTES AND COMMENTS: As indicated above, the benthic flux dataset is a derived dataset. That is, the values presented may be several calculation steps away from the raw data. Potential users are advised to contact one of the principle investigators for details. 1. At Stations BEN-PR-P22 and BEN-PR-P14, some flux incubationswere run to look at the differences between fluxes during high versus low tides. These parallel fluxes began in October, 1999 for Station BEN_PR_P22 and in April 2001 for BEN_PR_P14 and were discontinued after September, 2004. Sediment cores were incubated with overlying water collected to represent high tide and low tide conditions at each site. In the data, the parallel fluxes are distinguished by the salinity value listed. 2. To look at the duration of a salinity effect on fluxes, cores from Station BEN_PR_P22 in May, 2000, were incubated twice, with the second incubation starting 5 days after the first. During the second incubation, only O2, TCO2, and NH4 fluxes were measured. 3. Data for 2007-2009 have not received final QA/QC review and are subject to being updated. 4. The BEN-PR-Flux file is scheduled to be modified to include error estimates from replicate cores. 5. TBA in data cell refers to "to be analyzed". Site (Current Name) , Site (Previous Name) BEN-PR-P22, BEN-PR-P2 BEN-PR-P22 (Intertidal), BEN-PR-P2 (Intertidal) BEN-PR-P24.2, BEN-PR-P0 BEN-PR-P24 , BEN-PR-P1 BEN-PR-P14 , BEN-PR-P5 BEN-PR-P11 , BEN-PR-TL BEN-RO-R5.5 , BEN-SO-Row BEN-PR-P23.5 , BEN-PR-E0 BEN-PR-P23.5 (Intertidal), BEN-PR-E0 (Intertidal) BEN-EG-E13, BEN-RO-R13 BEN-EG-E13.5, BEN-RO-R13.5 BEN-EG-E14, BEN-RO-R14 Anne Giblin

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7488 agiblin@mbl.edu Lead PI Hap Garritt

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu Information Manager The Plum Island Ecosystems (PIE) LTER is an integrated research, education and outreach program whose goal is to develop a predictive understanding of the long-term response of watershed and estuarine ecosystems at the land-sea interface to changes in climate, land use and sea level. The principal study site is the Plum Island Sound estuary, its coupled Parker, Rowley and Ipswich River watersheds and the adjacent coastal ocean, the Gulf of Maine. The PIE LTER focuses on how several aspects of global change influence organic matter and inorganic nutrient biogeochemistry and estuarine foodwebs. The inputs of organic matter and nutrients from land, ocean and marshes interact with the external drivers (climate, land use, river discharge, sea level) to dictate the extent and degree of nutrient and organic matter processing and determine the spatial patterns of estuarine productivity and trophic structure. This material is based upon work supported by the National Science Foundation under Grants OCE-9726921, OCE-0423565. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. The Plum Island Ecosystems (PIE) LTER site, is located in northeastern Massachusetts, 42.72 N, 70.85 W. The PIE LTER lies at the interface of a thinly soiled, formerly glaciated New England land mass and the highly productive Gulf of Maine. Three watersheds comprise the estuarine drainage basin: Parker (155 km2), Rowley (26 km2) and Ipswich (404 km2). The Ipswich River watershed is highly urbanized with Boston "bedroom" communities encroaching in the headwater region while the Parker is less urbanized and retains a higher proportion of forest. -71.2198 -70.7568 42.8276 42.4965 0 100 meter BEN-PR-Flux.csv Rates of benthic metabolism and nutrient cycling in the Parker and Rowley Rivers of the Plum Island Sound estuary. BEN-PR-Flux.csv 1 \r\n column , http://ecosystems.mbl.edu/PIE/data/BEN/data/BEN-PR-Flux.csv DATE DATE date of sample collection dd-mmm-yyyy STATION-CURRENT STATION-CURRENT current name of sampling station, following naming protocol current name of sampling station, following naming protocol STATION-PREVIOUS STATION-PREVIOUS name of sampling station prior to establishment of naming protocol name of sampling station prior to establishment of naming protocol River Km River Km kilometer distance, mid-channel, upstream from mouth of Plum Island Sound (RK= 0) kilometer real STATE X STATE X x coordinates (meters) in MA state plane NAD 83 meter real STATE Y STATE Y y coordinates (meters) in MA state plane NAD 83 meter real LAT LAT Latitude in NAD 83 geographic coordinates (decimal degrees) degree real LON LON Longitude in NAD 83 geographic coordinates (decimal degrees) degree real SAL SAL salinity (ppt) partPerThousand real TEMP-F TEMP-F temperature field (Celsius) celsius real TEMP-I TEMP-I temperature incubation (Celsius) celsius real O2_E O2_E oxygen flux (mmole O2 m-2 d-1) as measured by oxygen electrode millimolePerMeterSquaredPerDay real O2_W O2_W oxygen flux (mmole O2 m-2 d-1) as measured by Winkler titration millimolePerMeterSquaredPerDay real DIC DIC dissolved inorganic carbon, or total CO2 flux (mmole C m-2 d-1) millimolePerMeterSquaredPerDay real NH4 NH4 ammonium flux (mmole N m-2 d-1) millimolePerMeterSquaredPerDay real NO3 NO3 nitrate + nitrite flux (mmole N m-2 d-1) millimolePerMeterSquaredPerDay real DIN DIN dissolved inorganic nitrogen (NH4+ + NO3- + NO2-) flux (mmole N m-2 d-1) millimolePerMeterSquaredPerDay real PO4 PO4 dissolved phosphate flux (mmole P m-2 d-1) millimolePerMeterSquaredPerDay real DOC DOC dissolved organic carbon flux (mmole C m-2 d-1) millimolePerMeterSquaredPerDay real DON DON dissolved organic nitrogen (TDN - DIN) flux (mmole N m-2 d-1) millimolePerMeterSquaredPerDay real CH4 CH4 methane flux (mmole C m-2 d-1) millimolePerMeterSquaredPerDay real N2O N2O nitrous oxide flux (mmole N m-2 d-1) millimolePerMeterSquaredPerDay real COMMENTS COMMENTS information pertaining to individual data points information pertaining to individual data points ratio of two quantities as parts per thousand (1:1000) millimoles per square meter perday (areal flux or diffusion of a substance)