Dataset Available

Plant decomposition rates in Terrebonne Bay and LUMCON area salt marshes, 2013-2014

Authors: Roberts, Brian
Published On: Nov 21 2016 19:41 UTC
DOI: https://doi.org/10.7266/N72R3PM3
UDI: R1.x139.143:0031
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Project Information

Funded By:
Gulf of Mexico Research Initiative

Funding Cycle:
RFP-I

Research Group:
Coastal Waters Consortium (CWC)

Point of Contact

Jason Weick
Louisiana Universities Marine Consortium (LUMCON) / Data Management
jweick@lumcon.edu

Data Collection Period
2013-04-23
to
2014-11-12
Theme keywords

salt marsh, plant, Spartina alterniflora, decomposition, Juncus roemarianus, shoots, roots

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Abstract:

Decomposition rates of Spartina alterniflora and Juncus roemerianus shoots and S. alterniflora roots were determined for six Louisiana salt marshes. Two marshes in Cocodrie, LA (LUMCON) served as reference sites and were compared to two pairs of marshes in a region of Terrebonne Bay (TB) impacted by the Deepwater Horizon oil spill (one unoiled and one oiled marsh per pair). Decomposition bags were deployed at 5 and 20m from the marsh edge on 22 April 2013 and collected at decreasing frequency starting at 2 weeks after deployment until the material was gone.

Suggested Citation:

Roberts, Brian. 2016. Plant decomposition rates in Terrebonne Bay and LUMCON area salt marshes, 2013-2014. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N72R3PM3

Purpose:

This dataset was developed as part of a research project investigating the effects of the Deepwater Horizon oil spill on salt marsh biogeochemistry. This component of the CWC research effort focused on determining whether decomposition rates of marsh plants varied based on marsh position and/or oil status.

Data Parameters and Units:

Region- -Region of collection (TB- Terrebonne Bay or LUMCON) Site--Site identifier Latitude (decimal degrees) Longitude (decimal degrees) Oil status--indicator of whether marsh site was in reference region (LUMCON) or whether it received oil (Oiled) or not (Unoiled) following the Deepwater Horizon oil spill Sampling date--date on which decomposition bag was retrieved (MM/DD/YYYY) Days since deployment--number of days since initial deployment that bag was retrieved Distance from marsh edge (m)--location on marsh platform that bags were deployed Spartina alterniflora shoots--mass remaining (dry grams) of S.a. shoots deployed at this site and location at time of collection Juncus roemarianus shoots--mass remaining (dry grams) of J.r. shoots deployed at this site and location at time of collection Spartina alterniflora roots--mass remaining (dry grams) of S.a. roots deployed at this site and location at time of collection

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