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-FiddCrabMollusk-Survey.02
Dataset Title:Fiddler crab and mollusk density in tidal creeks off the Rowley River, (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
Associate Investigators:
Keywords:PIE LTER; population dynamics; climate change; salt marsh; decapods
Abstract:Climate change is predicted to shift or extend the range of warm-water species poleward. In 2014, the fiddler crab was observed for the first time at the PIE LTER site in Northeast Massachusetts, which is north of its historical range. Beginning in 2014, density estimates were collected.
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://pie-lter.ecosystems.mbl.edu
DATA FILE INFORMATION:
Data File URL http://ecosystems.mbl.edu/PIE/data/LTE/data/LTE-TIDE-FiddCrabMollusk-Survey.csv
Data File Name LTE-TIDE-FiddCrabMollusk-Survey
Beginning Date 6/1/2014
End Date 8/1/2015
Number of Data Records 360
Other Files to Reference
Availability Status Type 1
Quality Control Information
Maintenance Description Survey ongoing
Log of Changes: Version 01: August 28, 2015, data and metadata updates to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2015.xlsm 1/15/15 4:26 PM for QA/QC to EML 2.1.0
Version 02: November 20, 2015, file name change, no data changes from previous file, HTL-MAR-FiddCrabMollusk-Survey.01. Data and metadata comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2015.xlsm 1/15/15 4:26 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 Uca pugnax; Geukensia demissa; Nassarius obsoletus; Ilyanassa obsoleta; Melampus bidentatus; Littorina littorea
 
Methods:Data are collected from 10-20 randomly selected points along a 200 m transect. 0 mark is frequently the confluence of tidal creeks, except WE-L. At each point, a 25 cm x 25 cm (.0625m2) quadrat is placed within the creek bank Spartina alterniflora and on the vertical surface of the creek wall. Within each quadrat, the number of burrows are quantified, in addition to any other macro-invertebrates (snails, mussels, etc). Burrowing activity is determined by the presence of fecal pellets in front ofburoow opening.

Measurements are made in the TIDE experimental creeks, Nelson, Clubhead, Sweeney, and West.

Data Table

Variable Name Variable Description Units Measurement Scale Code Information Number Type DateTime Format Missing Value Code Missing Value Code Explanation
Year Calendar year of measurement   datetime     YYYY NA NA = data not available
Date Date of measurement   datetime     DD-MON-YYYY NA NA = data not available
Creek Creek name   nominal       NA NA = data not available
Branch Creek branch based on standing at the confluence and facing upstream (landward)   nominal L=Left | R=Right     NA NA = data not available
Side Side of the creek channel based on facing upstream   nominal L=Left | R=Right     NA NA = data not available
Nutrient Nutrient level for TIDE experimental creeks   nominal       NA NA = data not available
PlotLocation Random meter point along 200 m transect meter interval   real   NA NA = data not available
Habitat Type of habitat   nominal Spartina = Spartina alterniflora | Creek wall = vertical surface of creek bank     NA NA = data not available
UcaDensity Density of Uca pugnax based on total burrows numberPerMeterSquared ratio   real   NA NA = data not available
GeukensiaDensity Density of Geukensia demissa - bivalve numberPerMeterSquared ratio   real   NA NA = data not available
NassariusDensity Density of Nassarius obsoletus - gastropod numberPerMeterSquared ratio   real   NA NA = data not available
LittorinaDensity Density of Littorina littorea - gastropod numberPerMeterSquared ratio   real   NA NA = data not available
MelampusDensity Density of Melampus bidentatus - gastropod numberPerMeterSquared ratio   real   NA NA = data not available