This readme file was generated on 2022-08-27 by Shelby Rinehart GENERAL INFORMATION Title of Dataset: Stratified vertical sediment profiles enhance burrowing crab effects on salt marsh edaphic conditions Author/Principal Investigator Information Name: Shelby Rinehart ORCID:0000-0001-9820-1350 Institution: University of Alabama Email: srinehart@ucdavis.edu OR sarinehart@ua.edu Author/Associate or Co-investigator Information Name: Jacob M. Dybiec Institution: University of Alabama Email: jmdybiec@crimson.ua.edu Author/Alternate Contact Information Name: Julia A. Cherry Institution: University of Alabama Email: cherr002@ua.edu Date of data collection: 2021-09 through 2021-10 Geographic location of data collection: West Fowl River, Coden, Alabama, USA CON-1: 30°22’02.3” N, 88°09’06.8” W CON-2: 30°22’03.5” N, 88°09’02.6” W NAT: 30°22’02.5” N, 88°09’37.2” W Information about funding sources that supported the collection of the data: University of Alabama, Department of Biological Sciences SHARING/ACCESS INFORMATION Licenses/restrictions placed on the data: None Links to publications that cite or use the data: Please see the publication associated with these data in XXXXXXXX (doi: XXXXXX) Recommended citation for this dataset: Rinehart, Shelby; Dybiec, Jacob; Mortizavi, Behzad; Cherry, Julia A (2022), Stratified vertical sediment profiles enhance burrowing crab effects on salt marsh edaphic conditions, Dryad, Dataset, https://doi.org/XXXXXXXXX DATA & FILE OVERVIEW File List: Sediment Profiles: Bulk density (g/cm3) and sediment organic matter (SOM) (%) at depths of 0-5 cm, 5-10 cm, 10-15 cm, and 15-20 cm in CON-1, CON-2, and NAT. Pellet SOM & BD: Bulk density (g/cm3) and SOM (%) of excavated sediments (pellets) found adjacent to crab burrows at CON-1, CON-2, and NAT. Pellet pH: The change in dionized water pH caused by excavated sediments/pellets (per gram sediment) found adjacent to crab burrows at CON-1, CON-2, and NAT. Sediments that decrease dionized water pH should be rich in clays. Pellet v Cores: Bulk density (g/cm3) and SOM (%) of excavated sediments (pellets) found adjacent to crab burrows and sediments collected from depths of 0-2.5 cm, 2.5-5 cm, 5-7.5 cm, and 7.5-10 cm depths at CON-1, CON-2, and NAT. Mimic Sediment Deposition: Total sediment deposition (mg/day) and SOM deposition (mg/day) into crab burrow mimics deployed along creek edges at CON-1 and NAT. Field Survey Crabs Plants PW: Burrow Density (m2), Mean Burrow Diameter (cm), Juncus Cover (%),Juncus Stem Density (m2), Mean Juncus Height (cm), Pore water Salinity (ppt), Pore water pH, and Pore water nutrients (NOx, PO4, and NH4) in areas with High and Low crab burrow densities at CON-1, CON-2, and NAT. Field Survey Sediment Cores: Mean Bulk density (g/cm3), SOM (%), water content (g/cm3), C Stocks (mg/cm3), and N Stocks (ug/cm3) of sediments collected from depths of 0-2.5 cm, 2.5-5 cm, 5-7.5 cm, and 7.5-10 cm in areas with High and Low crab burrow densities at CON-1, CON-2, and NAT. Core CV: Calculated coefficients of variation for bulk density and SOM across the four sub-sections of sediment cores at CON-1, CON-2, and NAT. This data is meant to highlight crab homogenization of sediments across the 0-10cm sediment profile. METHODOLOGICAL INFORMATION Description of methods used for collection/generation of data: Please see the publication associated with these data in XXXXXXXX (doi: XXXXXX) Methods for processing the data: In the Field Survey Sediment Cores data set, all plot-level variables represent the average of three, 0-10 cm deep sediment cores collected in every High and Low crab density plot at CON-1, CON-2, and NAT. Instrument- or software-specific information needed to interpret the data: Excel Environmental/experimental conditions: CON-1 and CON-2 are ~35 year old salt marshes created for mitigation, NAT is a natural salt marsh. See the publication associated with these data in XXXXXXXX (doi: XXXXXX) for more details regarding site descriptions. Describe any quality-assurance procedures performed on the data: General QA/QC People involved with sample collection, processing, analysis and/or submission: Shelby Rinehart was involved in sample collection, processing, analysis, and submission. Jacob Dybiec was involved in sample collection, processing, and submission. Behzad Mortizavi and Julia A Cherry were involved in submission DATA-SPECIFIC INFORMATION FOR: Sediment Profiles Number of variables: 5 Number of cases/rows: 66 Variable List: Marsh- Indicates which marsh (CON-1, CON-2, NAT) the data was collected from. Core Replicate- Identifes which sediment core the section depth data comes from. There were 6 cores taken per marsh. Section Depth (cm)- Identified what depth the sediment was collected from. The units are cm. Sediment cores were sub-sectioned into four sections: 0-5 cm, 5-10 cm, 10-15 cm, and 15-20 cm. Organic Matter (%)- The organic matter content (as a percent) of the sediment collected at a specific depth along the sediment core. Bulk Denisty (g/cm3)- The bulk denisty (grams per cm3) of sediment collected at specific depths along the sediment cores. Missing data codes: NA DATA-SPECIFIC INFORMATION FOR: Pellet SOM & BD Number of variables: 3 Number of cases/rows: 22 Variable List: Marsh- Indicates which marsh (CON-1, CON-2, NAT) the data was collected from. SOM (%)- The sediment organic matter (SOM) content (as a percent) of excavated material/pellets collected adjacent to crab burrows at CON-1, CON-2, and NAT. Bulk Density (g/cm3)- The bulk density (grams of sediment oer cm3) of excavated material/pellets collected adjacent to crab burrows at CON-1, CON-2, and NAT. Missing data codes: No missing data Specialized formats or other abbreviations used: SOM = Sediment organic matter DATA-SPECIFIC INFORMATION FOR: Pellet pH Number of variables: 2 Number of cases/rows: 9 Variable List: Marsh- Indicates which marsh (CON-1, CON-2, NAT) the data was collected from. Change in pH (per g sediment)- Change in dionized water pH resulting from addition of excavated material/pellets collected from adjacent to crab burrows at CON-1, CON-2, and NAT. The more negative this value, the more clays present in the excavated material/pellets. Missing data codes: No missing data DATA-SPECIFIC INFORMATION FOR: Pellet v Cores Number of variables: 6 Number of cases/rows: 165 Variable List: Marsh- Indicates which marsh (CON-1, CON-2, NAT) the data was collected from. Crab Density- The relative density (High or Low) of crab burrows per 0.25m2 plot. High plots had >/= 4 crab burrows, Low plots had /= 4 crab burrows, Low plots had /= 4 crab burrows, Low plots had /= 4 crab burrows, Low plots had