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.
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.
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
Version 03: March 1, 2019, data and metadata (keywords for snails) updates to comply with importation to DEIMS7 and LTER Data Portal. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2018.xlsm 6/21/18 3:53 PM for QA/QC to EML 2.1.0