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: LTE-TC-BenChl.txt

DOCUMENTATION FILE: LTE-TC-BenChl.doc

YEAR: 1998-2002

PI: Linda Deegan

OTHERS: Hap Garritt, Amy Chiuchiolo, John Logan, Sallie Sheldon, Sarah Twichell

BRIEF DESCRIPTION OF DATA FILE:

Tidal creek benthic chlorophyll

KEYWORDS: tidal, creek, benthic, sweeney, club head, nelson, sand, shad, sawyer, west, mud, greenwood, chlorophyll

SITE TYPE: Long-term Experiment

RESEARCH LOCATION:

Site	LAT	LON
LTE-TC-Club	42.73982372	70.83803847
LTE-TC-MudEast	42.74877201	70.84647231
LTE-TC-MudWest	42.74853814	70.84842171
LTE-TC-Nelson	42.74176001	70.83285442
LTE-TC-Sand	42.7301556	70.85447212
LTE-TC-Sawyer	42.74552775	70.84061535
LTE-TC-Shad	42.73656507	70.8432702
LTE-TC-Sweeney	42.72196912	70.8472624
LTE-TC-West	42.73782419	70.8491177
LTE-TC-Greenwood

EXPERIMENTAL DESIGN AND METHODS:

Benthic sediments were collected at low tide using 60 cc syringe corers with 2.65 cm diameters. Surface to 2 cm depths were sectioned and placed in 60 cc polypropylene centrifuge tubes and frozen for later chlorophyll extraction (see ANALYTICAL METHODS).Total volume of sediment is 11.03 cc.

NOTES AND COMMENTS:

VARIABLE DESCRIPTION:

NAME	DESCRIPTION	UNIT	PRECISION
Date	Date of sampling	dd-mmm-yyyy	1
Creek	Name of creek
Branch	Name of creek branch
New Branch	Name of new creek branch
Distance	Distance in creek	meter	5
New Distance	New distance in creek	meter	5
Habitat	Sediment habitat type, marsh or plant type
Chla areal	Areal concentration of benthic chlorophyll a	Milligrams per square meter	1
Phaeo areal	Areal concentration of phaeophytin	Milligrams per square meter	1
Chla conc	Volumetric concentration of benthic chlorophyll a	Milligrams per cubic meter	1
Phaeo conc	Volumetric concentration of benthic phaeophytin	Milligrams per cubic meter	1
%loss	% loss on ignition of sediment weight	percent	.01
Porosity	Porosity of sediments	fraction	.001
Bulk Density	Bulk density of sediment	Grams per cubic centimeter of sediment	.001
Comments	Comments about specific data
Comments	Comments about specific data
Comments	Comments about specific data

CALCULATIONS:

% loss on ignition = (dry wt – ash wt)/dry wt

Porosity = (wet wt – dry wt)/wet wt

Bulk density = dry wt(g)/sediment volume (cc)

Mg/m2 = mg/m3 x depth (.02m)

FOR MORE INFORMATION, CONTACT:

Hap Garritt

OTHER DATA FILES TO REFERENCE:

REFERENCE CITATIONS:

DATA AVAILABILITY STATUS:

Type 2

ARCHIVE INFORMATION:

Date of original entry: April 29, 2003

Data entered by: Hap Garritt

Updated:

Updated by:

Comments: