Plum Island Ecosystems LTER Database

Acceptance and utilization of LTER data requires that:

(1) The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
(2) 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.
(3) A copy of any resultant publications should be sent to:

Principal Investigator
Ecosystems Center
Marine Biological Laboratory
7 MBL St.
Woods Hole, MA 02543

Dataset URLs:	METADATA: HTML, Rich Text, XML(EML compliant) DATA: Comma Delimited, Excel file with Metadata and data
Dataset ID:	LTE-TIDE-MelampusIndividBiomass.01
Dataset Title:	Melampus bidentatus length and biomass measurements for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA.
Investigator 1:
First Name:	David
Last Name:	Johnson
Address line 1:	The Ecosystems Center
Address line 2:	Marine Biological Laboratory
Address line 3:	7 MBL St.
City:	Woods Hole
State:	MA
Zip Code:	02543
Country:	USA
Investigator 2:
First Name:	Linda
Last Name:	Deegan
Address line 1:	The Ecosystems Center
Address line 2:	Marine Biological Laboratory
Address line 3:	7 MBL St.
City:	Woods Hole
State:	MA
Zip Code:	02543
Country:	USA
Associate Investigators:
Keywords:	PIE LTER, TIDE, population dynamics, nutrients, salt marsh, snails, creek
Abstract:	Melampus bidentatus (coffee bean snail) length and biomass measurements for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA. The TIDE project aims to simulate eutrophication on a large scale by the addition of NO3- aiming to reach 70µM concentrations from May to September every year during the growing season. This fertilization of the marsh has been going on at Sweeney Creek since the 2004 growing season through 2011 and at Clubhead Creek in 2005 and from 2009 till 2011.
Contact:	Plum Island Ecosystems LTER Information Manager The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole, MA 02543 Phone (508) 289 7485 Email: pie_im@mbl.edu Online URL: http://ecosystems.mbl.edu/PIE/
DATA FILE INFORMATION:
Data File URL	http://ecosystems.mbl.edu/PIE/data/LTE/data/LTE-TIDE-MelampusIndividBiomass.csv
Data File Name	LTE-TIDE-MelampusIndividBiomass
Beginning Date	8/1/2009
End Date	9/30/2010
Number of Data Records	1091
Other Files to Reference
Availability Status	Type 1
Quality Control Information
Maintenance Description
Log of Changes:	Version 01: January 27, 2012, updated data and metadata. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 1/18/12 4:51 PM for QA/QC to EML 2.1.0

RESEARCH LOCATION:	MAR-LTE-RO-TC-MF-SW	MAR-LTE-RO-TC-MF-WE	MAR-LTE-RO-TC-MF-CL	MAR-LTE-RO-TC-MF-NE
Geographic Description	"Sweeney Creek", off Rowley River, Ipswich, MA	West Creek, off Rowley River, Rowley, MA.	Clubhead Creek off Rowley River, Rowley, MA.	Nelson Island Creek, off Rowley River, Rowley,
Location Bounding Box
West Bounding Coordinate	-70.851	-70.852	-70.842	-70.836
East Bounding Coordinate	-70.845	-70.846	-70.836	-70.831
North Bounding Coordinate	42.724	42.741	42.742	42.744
South Bounding Coordinate	42.719	42.736	42.738	42.74
OR if single point location
Latitude
Longitude
Elevation


TAXONOMIC COVERAGE:
Taxonomic Protocols
Organisms studied	Melampus bidentatus

Methods:	Methods All samples taken in late August(2009) and early September(2010). 10 snails were randomly selected from field-collected snails and measured for shell height (from the spire to the tip of operculum). In the field, 10 quadrats were haphazardly tossed in the high marsh (dominated by Spartina patens) of each creek branch. Data can be paired with high-marsh invertebrate density file. Creeks- Reference creeks are West and Nelson Nutrient Enriched creeks are Sweeney and Clubhead. Sweeney has been fertilized every summer from 2004-2011. Clubhead had been fertilized in 2005 and then from 2009-2011. All creeks have two branches determined by direction at confluence while facing upstream (Left or Right).

Data Table

Variable Name	Variable Description	Units	Measurement Scale	Code Information	Number Type	DateTime Format	Missing Value Code	Missing Value Code Explanation
Date	Year Sampled		datetime			YYYY		blank cell
Creek	Creek Sampled		nominal	Sweeney= Nutrient Enriched \|Nelson= Nutrient Enriched\| West= Reference\| Clubhead= Reference				blank cell
Nutrient Level	Nutrient Level of Creek		nominal	Fertilized= Nutrient Enriched\| Reference= Reference				blank cell
Branch	Branch Sampled		nominal	R=Right \| L=Left				blank cell
Habitat	Habitat Sampled		nominal	SP= Spartina patens dominated habitat				blank cell
Quadrat	Quadrat Sampled		nominal					blank cell
Snail Rep	Number of Replicates		nominal					blank cell
Shell height	Height of Shell	millimeter	ratio		real			blank cell
Biomass-g	Mass of Snail in grams	gram	ratio		real			blank cell
Biomass-mg	Mass of Snail in miligrams	milligram	ratio		real			blank cell