|Spivak, Amanda||Woods Hole Oceanographic Institution (WHOI)||Principal Investigator|
|Ake, Hannah||Woods Hole Oceanographic Institution (WHOI BCO-DMO)||BCO-DMO Data Manager|
Raw benthic chlorophyll and phaeophytin data from each experimental time point in June, August, and October 2013.
Sediment samples for organic matter composition were collected by placing a hard plastic sleeve around a polyvinyl chloride (PVC) corer (5 cm diameter x 15 cm deep) and then removing the corer. The plastic sleeve remained in place to maintain the integrity of the sediment column and mark the core location (Spivak 2015). The top 0.5 cm of each core was collected into pre-combusted vials and frozen (-80 deg C) until analysis for total organic carbon and nitrogen content and stable isotopes (d13C, d15N) and lipid biomarker composition. Adjacent samples for benthic chlorophyll were collected with smaller cores (1.5 cm diameter x 1 cm deep) into glass vials and frozen (-20 deg C) until analysis. Additional sediment cores for organic matter composition and benthic chlorophyll were collected 4, 8, 24, and 48 h after the 13C-labeled NaHCO3 was applied in June, August, and October and 4, 8, 24, and 144h after the 13C-labeled S. alterniflora was applied in August. Benthic chlorophyll was determined per methods described by Neubauer et al. (2000).
Spivak, AC and J Ossolinski. 2016. Limited effects of nutrient enrichment on bacterial carbon sources in salt marsh tidal creek sediments. Marine Ecology Progress Series. 544:107-130.10.3354/meps11587
The file includes raw and log10-transformed benthic chlorophyll and phaeophytin data.
BCO-DMO Data Processing Notes:
-reformatted column names to comply with BCO-DMO standards.
-displayed months numerically
|month||Samping month; mm||unitless|
|estuary||Estuary where sampling occurred||unitless|
|timepoint||Timepoint refers to when the sample was collected before (PL) or after the 13C-isotope label was added||unitless|
|experiment||Experiment refers to whether the 13C label was applied as benthic microalgae (BMA) or Spartina alterniflora (salt) detritus.||unitless|
|sampleID||Sample ID number||unitless|
|chla||Benthic chlorophyll concentration||ug cm-2|
|phaeo||Phaeophytin concentration||ug cm-2|
|logchla||Log 10 benthic chlorophyll concentration||log|
|logphaeo||Log 10 phaeophytin concentration||log|
|chla_phaeo||Ratio of chlorphyll to phaeophytin concentrations||ug cm-2|
|Dataset-specific Instrument Name|| |
|Generic Instrument Name|| |
|Dataset-specific Description|| |
Used to collect core samples
|Generic Instrument Description|| |
Capable of being performed in numerous environments, push coring is just as it sounds. Push coring is simply pushing the core barrel (often an aluminum or polycarbonate tube) into the sediment by hand. A push core is useful in that it causes very little disturbance to the more delicate upper layers of a sub-aqueous sediment. Description obtained from: http://web.whoi.edu/coastal-group/about/how-we-work/field-methods/coring/
|Start Date|| |
|End Date|| |
This document is created by info v 4.1f 5 Oct 2018 from the content of the BCO-DMO metadata database. 2020-02-23 10:47:30