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GCE-LTER Data Set Summary
Accession:
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PHP-GCEM-0511c
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Research Theme:
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Phytoplankton Productivity (Monitoring)
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Contributors:
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Robert E. Hodson, Jen Mou, Ed Sheppard
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Title:
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March 2004 surface water phytoplankton productivity for 10 Georgia Coastal Ecosystems LTER sampling sites
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Abstract:
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Water samples were collected by Niskin bottle or by hand from just beneath the surface during low tide surveys at or near 10 GCE-LTER sampling sites in March 2004. The incorporation of radiolabelled bicarbonate in response to varying levels of illumination was measured using a photosynthetron apparatus. Photosynthesis-irradiance (P-I) curves constructed from these measurements will be used in conjunction with algal biomass and PAR versus depth measurements to estimate instantaneous gross primary production in the water at each GCE sampling site. This study was part of the GCE-LTER hydrographic monitoring program, and will be repeated quarterly.
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DOI:
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10.6073/pasta/78594dea4e3caedbf5d18316bac02815
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Key Words:
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algae, bicarbonate, carbon, light, photosynthesis, photosynthetically active radiation, phytoplankton, productivity, water column
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LTER Core Area:
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Primary Production
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Research Themes:
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Phytoplankton Productivity |
Study Period:
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11-Mar-2004 to 16-Mar-2004
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Study Sites:
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GCE1 -- Eulonia, Georgia, USA
GCE2 -- Four Mile Island, Georgia, USA
GCE3 -- North Sapelo, Sapelo Island, Georgia, USA
GCE4 -- Meridian, Georgia, USA
GCE5 -- Folly River, Georgia, USA
GCE6 -- Dean Creek, Sapelo Island, Georgia, USA
GCE7 -- Carrs Island, Georgia, USA
GCE8 -- Alligator Creek, Georgia, USA
GCE9 -- Rockdedundy Island, Georgia, USA
GCE10 -- Hunt Camp, Sapelo Island, Georgia, USA
GCE-SP -- Sapelo River, Georgia, USA
GCE-DB -- Doboy Sound, Georgia, USA
GCE-AL -- Altamaha River, Georgia, USA
GCE-DP -- Duplin River, Georgia, USA
GCE-IC -- Intracoastal Waterway, Georgia, USA
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Downloads:
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Data Table: PHP-GCEM-0511c (Main data table for data set PHP-GCEM-0511c, 240 records)
Access: Public (released 09-Nov-2005)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [30.31kb], Text File [24.88kb], MATLAB (GCE Toolbox) [385.05kb], MATLAB (Variables) [277.02kb], Text Report [58.85kb]
Column List:(hide)
Column |
Name |
Units |
Type |
Description |
1 |
Cruise |
none |
string |
GCE-LTER research cruise identifier (LTER[MM][YY]) |
2 |
Date |
yyyy-mm-dd |
string |
Sample collection date |
3 |
Time |
hh:mm GMT |
string |
Sample collection time (GMT) |
4 |
Latitude |
decimal degrees |
floating-point |
Geographic latitude of sampling location |
5 |
Longitude |
decimal degrees |
floating-point |
Geographic longitude of sampling location |
6 |
Station |
none |
string |
Nearest nominal GCE-LTER CTD profiling station (1km geo-reference tolerance for station matching) |
7 |
Site |
none |
integer |
Nearest GCE-LTER sampling site number |
8 |
Vessel |
none |
string |
Vessel used to obtain the sample |
9 |
CTD_Cast |
none |
string |
Corresponding CTD cast |
10 |
Depth_Sampled |
none |
string |
Nominal sampling depth |
11 |
Temperature |
°C |
floating-point |
Water temperature at the sampling location |
12 |
Flag_Temperature |
none |
string |
QA/QC flags for Water temperature at the sampling location (flagging criteria, where "x" is Temperature: x<10="Q", x>35="Q", x<-2="I") |
13 |
Salinity |
PSU |
floating-point |
Salinity at the sampling location |
14 |
Flag_Salinity |
none |
string |
QA/QC flags for Salinity at the sampling location (flagging criteria, where "x" is Salinity: x<0="Q", x>35="Q", x<0="I") |
15 |
Position |
none |
integer |
Position of the tube in the Photosynthetron |
16 |
PAR_Intensity |
µE/m^2/s |
floating-point |
Light intensity at the photosynthetron position |
17 |
Flag_PAR_Intensity |
none |
string |
QA/QC flags for Light intensity at the photosynthetron position (flagging criteria, where "x" is PAR_Intensity: x<0="Q", x>1330="Q", x<0="I", x>16600="I") |
18 |
DPM_Added |
DPM |
floating-point |
Amount/activity of 14C added to the tube (mean of 3 replicate measurements) |
19 |
Flag_DPM_Added |
none |
string |
QA/QC flags for Amount/activity of 14C added to the tube (mean of 3 replicate measurements) (flagging criteria, where "x" is DPM_Added: x<3500000="Q", x>8500000="Q", x<0="I") |
20 |
DPM_Incorporated |
DPM |
floating-point |
Amount/activity of 14C incorporated during 1 hour incubation |
21 |
Flag_DPM_Incorporated |
none |
string |
QA/QC flags for Amount/activity of 14C incorporated during 1 hour incubation (flagging criteria, where "x" is DPM_Incorporated: x<250="Q", x>3500000="Q", x<0="I", x>=DPM_Added="I", manual) |
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Statistics:
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Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS |
Citation:
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Hodson, Robert E. 2005. March 2004 surface water phytoplankton productivity for 10 Georgia Coastal Ecosystems LTER sampling sites. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/78594dea4e3caedbf5d18316bac02815
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