Plum Island Ecosystem LTER Database

http://ecosystems.mbl.edu/PIE

 

 

 

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

 

 

PLUM ISLAND ECOSYSTEM LTER DATABASE

 

DATA FILE: Data file is available as both an Excel spreadsheet (version 2000) and a text (tab-delimited) file.

            MAR-VA-Porewater.xls, MAR-VA-Porewater.txt

 

DOCUMENTATION FILE:    MAR-VA-Porewater.doc

 

YEAR: 1998-2001

 

PI: James T. Morris

 

OTHERS: Robert J. Daoust

 

BRIEF DESCRIPTION OF DATA FILE: Porewater nutrient concentration data [SRP, NH4+, S-2, Cl-] from several sites along the Rowley and Parker Rivers, MA and Wells NEER, ME.

 

KEYWORDS: Spartina, alterniflora, patens, macrophyte, ammonium, chloride, sediment, marsh, phosphorus, sulfide, salinity, porewater, LTE-MP-LPP, LTE-MP-LPA, LTE-MP-ORT, MAR-RO-LawTr, MAR-RO-MorrisTr, MAR-PR-PD, MAR-WM-Little

 

SITE TYPE: marsh, long-term experiments

 

RESEARCH LOCATION: 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

42.73174171

70.84247191

LTE-MP-LPP

LPP

42.75673837

70.91771675

LTE-MP-ORT

TY

42.73095384

70.84291486

MAR-RO-LawTr

LP

 

 

MAR-RO-MorrisTr

MI

 

 

MAR-PR-PD

PD

 

 

MAR-WM-Little

WM

 

 

 

 

EXPERIMENTAL DESIGN AND METHODS:

 

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.

VARIABLE DESCRIPTION:

 

VARIABLE

VARIABLE DESCRIPTION

UNITS

MTH

Month of sample collection

 

DAY

Day of sample collection

 

YR

Year of sample collection

 

SIT

Site of sample collection:

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

LTE-MP-ORT: Orchard Road Typha sp. brackish marsh site

MAR-PR-PD: Freshwater marsh immediately behind the Parker River Dam

LTE-MP-LPA: Law’s Point S. alterniflora  low marsh fertilization experiment

LTE-MP-LPP: Law’s Point S. patens high marsh fertilization experiment

MAR-WM–Little: Wells, ME NEER site along Little River

Assigned code

LOC

Sample location, in many cases this depends completely on sample site

CK – creek surface water sample

RT – water collected while draining from creekbank

PD – pond surface water sample

Numbers > 3 indicate a distance in meters along a transect with 0 m located at the creekbank

Numbers (1,2,3) indicate a position along an unsurveyed transect

C – samples collected at experimental sites from control, unfertilized plots

F – samples collected at experimental sites from N+P fertilized plots

Assigned code

REP

Replicate number, in some case diffusion sampler are set alone (1 rep), in pairs (2 reps), or in triplicates (3 reps)

Assigned number

DPT

Sample depth (10, 25, 50, 75, 100) 0 = surface water sample

cm

SRP

soluble reactive phosphorus concentration

µM

NH4

ammonium concentration

µM

S2

sulfide concentration

µM

Cl

chloride concentration

g l-1

SAL

salinity

ppt

 

 

CALCULATIONS:

 

FOR MORE INFORMATION, CONTACT:

Robert J. Daoust

Department of Biological Sciences

University of South Carolina

Columbia, SC 29208

Phone #: (803) 777-9051

mailto:daoust@biol.sc.edu

OTHER DATA FILES TO REFERENCE:

 

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.

 

DATA AVAILABILITY STATUS:

Type 3

ARCHIVE INFORMATION:

Date of entry: July 24, 2001

Data entered by: Robert J. Daoust

Comments: