The survey data may be freely used by others for research purposes as long as its source is acknowledged. Please use the following reference:
Abundance and size data
The data files are text files organized to allow import into ODV [1] or Microsoft Excel®. Each file is organized as a tab-separated table with a header line describing the variables in the table (and their units of measurement) as well as rows containing data. Comments are present in the data files as rows that start with the characters "//".
| Variable | Unit | Description |
| Cruise | n/a | Cruise label. Used within ODV. Calculated using the formula 10000*(year-2000)+100*mon+day for this data |
| Station | n/a | Location of survey plot. One of "DPL": Davenport Landing "FMR": Fitzgerald Marine Reserve "DUX": Duxbury Reef |
| Type | n/a | Station type. Used within ODV. Marked as type "C" for all data |
| mon/day/year | n/a | month/date/year of survey in format mm/dd/yyyy |
| hh:mm | n/a | hours:minutes for start of survey in format hh:mm |
| Longitude | degrees_east | Longitude of plot (degrees east) |
| Latitude | degrees_north | Latitude of plot (degrees north) |
| Bot. Depth | m | bottom depth in meters (required by ODV, is set to 0 in data) |
| Transect Location | m | transect location (meters) from the NE corner of the plot along the edge joining NE/SE corners of survey plot |
| Quadrat Location | m | quadrat location (meters) from the Eastern (shore) side of the plot towards the ocean. Note that Quadrat location = Quadrat number - 0.5, i.e., quadrat 1 spans the distance (0 m,1 m) and is centered at 0.5 m along the transect |
| Topographical Height | m | measured topographical height in meters |
| Reference Height | m | measured topographical height at center of plot (location of the reservoir). Relative Height = Topographical Height - Reference Height |
| Density | Count/m2 | Measured count within a 1mx1m quadrat |
| Count | number | Count of A. sola within quadrat whose sizes were measured |
| Size | cm | Average size (diameter) of A. sola within the quadrat (computed as sum(s1:s10)/count, rounded to 2 decimal points) |
| S1 - S10 | cm | Individual diameter size measurements for sola within a quadrat |
Note: In many instances, the sizes were measured in inches. If so, the units are labeled accordingly. Each data file is a tab-separated file containing column labels in the format "Variable_Name [measurement_unit]."
Baseline Abundance data (Winter 2004 - Spring 2005)
- Topographical Data for all three sites
- Abundance data (04-05 survey) for Davenport Landing, Fitzgerald Marine Reserve, and Duxbury Reef
Abundance data (Winter 2005)
- Abundance data for Davenport Landing, Fitzgerald Marine Reserve, and Duxbury Reef
Temperature data
Ocean and Atmospheric temperatures from NOAA buoys [2]. Use text files available at these sites. Columns of interest are date/time, "ATMP" (air temperature) and "WTMP" (water temperature).
- Duxbury Reef: Buoy 46026
- Fitzgerald Marine Reserve: Buoy 46012
- Davenport Landing: Buoy 46042
Intertidal temperatures measured using iButton® Thermochron data loggers [3]
Temperature data is recorded in text files using the same format as in the NOAA data files. Each file is a tab separated file with year, month, day, hour, minute (UTC), and intertidal temperature (degrees celsius). Note there are gaps in the data.
| Fitzgerald Marine Reserve | Davenport Landing | Duxbury Reef |
| 2004 data 2005 data 2006 data |
2004 data 2005 data 2006 data |
2005 data 2006 data |
| References |