Snail, Melampus bidentatus, length and biomass measurements for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA.

Summary

Short name: 

LTE-TIDE-MelampusIndividBiomass

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 2016 and at Clubhead Creek in 2005 and from 2009 till 2016. Invertebrates were sampled after fertilization ended to look at recovery.

Data set ID: 

198

EML revision ID: 

4
Published on EDI/LTER Data Portal

Citation Suggestion: 

Johnson, D., Deegan, L. 2021. Snail, Melampus bidentatus, length and biomass measurements for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/61d3139fd6d0a0cc1a4568eb9d3bc45c
Categories

Core Areas: 

Keywords: 

Dates

Date Range: 

Saturday, August 1, 2009 to Saturday, August 1, 2020

Publication Date: 

Wednesday, November 10, 2021
People

Owner/Creator: 

David Johnson
Linda Deegan

Contact: 

David Johnson
Related
Downloads

Data sources: 

LTE-TIDE-MelampusIndividBiomass_csv
LTE-TIDE-MelampusIndividBiomass_xls
Methodology

Purpose: 

 

Methods: 

Methods

Methods

All samples taken in summer no sooner than late June and no later than mid-September. In the field, 10 quadrats (0.01 m2) (in either Spartina patens or stunted Spartina alterniflroa habitats) of each creek branch. Data can be paired with high-marsh invertebrate density file. For 2010/2009 data, only 10 of randomly selected snails in a quadrat were measured for shell length. Shell-free biomass determined using allometric equation in Johnson 2011 Marine Ecology Progress Series 438:143-152.

Nutrients
Reference creeks are West and Nelson
Nutrient Enriched creeks are Sweeney and Clubhead. Sweeney has been fertilized every summer from 2004-2016 . Clubhead had been fertilized in 2005 and then from 2009-2016.

All creeks have two branches determined by direction at confluence while facing upstream (Left or Right). Samples were not collected in West-Left after 2019 due to restricted access.

Maintenance: 

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
Version 02: June 20, 2013 data and metadata updated to comply with importation to Drupal and LTER PASTA. Research location name and description updated.Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 3/14/13 12:02 PM for QA/QC to EML 2.1.0
Version 03: January 21, 2015, data and metadata updates to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 1/15/15 4:26 PM for QA/QC to EML 2.1.0
Version 04: 05 November 2021, New data and metadata. Used MarcrosExportEML_HTML (working)pie_excel2007_Jul2021.xlsm 7/26/2021 9:04 AM for QA/QC to EML 2.1.0.