uid=PIE,o=lter,dc=ecoinformatics,dc=org all public read MAR-PR-Porewater.02 Plum Island Ecosystems LTER Program Anne Giblin

Ecosystems Center MBL 7 MBLSt Woods Hole MA 02543 USA

Plum Island Ecosystems LTER Program Charles Hopkinson

Georgia Sea Grant College Program 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/ Emily Gaines additional investigator William Lee additional investigator Christina Maki additional investigator Aaron Strong additional investigator Rebecca Prosser additional investigator Colin Millar additional investigator Catherine Caruso additional investigator Samuel Kelsey additional investigator 2010 Marsh sediment porewater nutrient concentrations [NH4+, NO3-, DOC, TDN] and salinity are reported from Spartina sp. and Typha sp. sites along the Parker River, MA. Porewater peeper ploes are used for collection and the poles are located in the vicinity of the marsh water table sites for the Railroad and Typha sites. PIE LTER inorganic nutrients organic matter Spartina alterniflora Spartina patens Typha macrophyte ammonium sediment marsh salinity porewater 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/MAR/MAR-PR-Porewater.html Railroad Site -70.858873525 -70.858873525 42.7616032888889 42.7616032888889 Typha site -70.9148603083333 -70.9148603083333 42.7508503277778 42.7508503277778 2004-09-28 2010-11-15 Organisms Studied Genus Spartina Species alterniflora Genus Spartina Species patens Genus Typha Species sp. Porewater is sampled monthly from May through December Version 01, 20Jan2009 metadata and data online Version 02: January 24, 2012, updated data and metadata through 2010. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 1/18/12 4:51 PM for QA/QC to EML 2.1.0 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/ Porewater is sampled monthly from May through December. Samples are retrieved from four diffusion sampling poles at two sites, Railroad and Typha, along the Parker River. At each site, one pole is located 4 m from creek edge and another pole is 10 m from creek edge. Samples are retrieved at depths of 10, 25, 50, 75, and 100 cm, and are filtered and partitioned for analysis. Nitrate, NH4, DOC, and TDN concentrations are measured in each sample according to standard laboratory protocols, and salinity is measured using a conductivity probe. Analyses are conducted according to PIE-LTER protocols (http://ecosystems.mbl.edu/pie/data/method.htm). The Railroad site is dominated by Spartina sp and the Typha site is dominated by Typha sp. NOTES AND COMMENTS: Phosphate was only measured for some 2004 samples. 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 MAR-PR-Porewater.csv Marsh sediment porewater nutrient concentrations from Spartina sp. and Typha sp. sites along the Parker River, MA. MAR-PR-Porewater.csv 1 \r\n column , http://ecosystems.mbl.edu/PIE/data/MAR/data/MAR-PR-Porewater.csv Date Date Date of sample collection DD-MMM-YYYY Location Location Sample location Typha 4m Typha site 4m from creek edge Typha 10m Typha site 10 m from creek edge RR 4m Railroad site 4m from creek edge RR 10m Railroad site 10 m from creek edge Depth Depth Sample depth (10, 25, 50, 75, 100) 10 = 10 cm below marsh surface centimeter real Sal Sal Salinity partPerThousand real NO3 NO3 Nitrate concentration as NO3-N micromolePerLiter real NH4 NH4 Ammonium concentration as NH4-N micromolePerLiter real DOC DOC Dissolved organic carbon concentration as C micromolePerLiter real TDN TDN Total dissolved nitrogen concentration as N micromolePerLiter real PO4 PO4 Soluble reactive phosphate concentration as PO4-P micromolePerLiter real ratio of two quantities as parts per thousand (1:1000) µM = µmoles per liter of solution