Porewater is sampled monthly from May through November and bi-monthly from December though April using diffusion samplers. Samples are retrieved from triplicate poles at depths of 10, 25, 50, 75, and 100 cm. Soluble reactive phosphorus, NH4, S2, and chloride concentrations are measured in each sample according to standard laboratory protocols (SRP and NH4 – Strickland and Parson (1972); S2 – Otte and Morris (1994)).
NOTES AND COMMENTS:
MAR-RO-MorrisTr discontinued on 7/1/99.
LTE-MP-LPP began in May 99.
LTE-MP-ORT began in May 00. TYC1 and TY11 are the same sampling pole.
REFERENCE CITATIONS:
Otte, M. L. and J. T. Morris (1994). Dimethylsulphoniopropionate (DMSP) in Spartina alterniflora Loisel. Aquatic Botany 48:239-259.
Strickland, T. D. and T. R. Parsons. 1972. A Practical Handbook of Seawater Analysis. Fisheries Research Board of Canada, Ottawa, Ontario, Canada.
Locations of Porewater Peepers. (Please note that stations were renamed to fit with the PIE-LTER station naming protocol. Previous names are listed in the table below for reference.)
LTE-MP-LPA = Law’s Point low marsh (Spartina alterniflora dominated) plot-level marsh fertilization experimental site
LTE-MP-LPP = Law’s Point high marsh (Spartina patens dominated) plot-level marsh fertilization experimental site
LTE-MP-ORT = Upper Parker River Typha sp. dominated marsh plot-level marsh fertilization experimental site
MAR-RO-LawTr = Law’s Point transect, 100 m from creekbank inland, Loc for this site corresponds to meters from creekbank
MAR-RO-MorrisTr = Morris Island transect
MAR-PR-PD = Freshwater marsh immediately behind the Parker River Dam
MAR-WM-Little = Wells, ME NEER site along Little River
CURRENT STATION NAME Previous Name LAT LON
LTE-MP-LPA LPA 42.731742 - 70.842472
LTE-MP-LPP LPP 42.730954 - 70.842915
LTE-MP-ORT TY 42.756738 - 70.917717
MAR-RO-LawTr LP
MAR-RO-MorrisTr MI
MAR-PR-PD PD
MAR-WM-Little WM
