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GCE-LTER Data Set Summary
Accession:
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INV-GCEM-0502a1
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Research Theme:
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Aquatic Invertebrate Ecology (Monitoring)
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Contributors:
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Thomas Dale Bishop, Merryl Alber, Ken Helm, Monica Watkins
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Title:
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Mollusc population abundance monitoring: Fall 2003 mid-marsh and creekbank infaunal and epifaunal mollusc abundance based on collections from GCE marsh, monitoring sites 1-10
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Abstract:
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This data set is the Fall 2003 estimate of infaunal and epifaunal mollusc abundance at the GCE-LTER marsh sites used for population monitoring. Species abundance was determined by hand-collecting all the infaunal and epifaunal molluscs from within quadrats of known area in mid-marsh and creekbank zones (n = 4 quadrats per zone) at all sites. The molluscs were returned to the lab, fixed in fomalin, transferred to and preserved in ethanol, counted and measured (size data is reported separately). The counts were converted to number per square meter. Gastropod species are listed first, followed by bivalve species. Size distribution data for these collections may be found in the GCE-LTER data set INV-GCEM-0502a2.
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DOI:
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10.6073/pasta/81e9040300e43666830c20098c551310
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Key Words:
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abundance, Aquatic Invertebrate Monitoring, community composition, creek bank, density, Detracia, epifauna, fall, Geukensia, Ilyanassa, infauna, intertidal, Littoraria, Littorina, marshes, Melampus, mid-marsh, mollusks, monitoring, permanent plots, Polymesoda, species diversity, Succineidae
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LTER Core Area:
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Population Studies
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Research Themes:
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GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Aquatic Invertebrate Ecology |
Study Period:
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17-Oct-2003 to 21-Oct-2003
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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
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Species References:
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Detracia floridana,
Geukensia demissa,
Ilyanassa obsoleta,
Littoraria irrorata,
Melampus bidentatus,
Polymesoda caroliniana,
Succineidae |
Data References:
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INV-GCEM-0502a2 (corresponding size data set)
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Project References:
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Invasive species, Marine invertebrate monitoring |
Publications:
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Wisnoski, N., Andrade, R., Castorani, M., Catano, C.P., Compagnoni, A., Lamy, T., Lany, N.K., Marazzi, L., Record, S., Smith, A.C., Swan, C.M., Tonkin, J.D., Voelker, N.M., Zarnetske, P.L. and Sokol, E.R. 2023. Diversity–stability relationships across organism groups and ecosystem types become decoupled across spatial scales. Ecology. (DOI: 10.1002/ecy.4136)
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Downloads:
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Data Table: INV-GCEM-0502a1 (Main data table for data set INV-GCEM-0502a1, 560 records)
Access: Public (released 09-Feb-2006)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [62.59kb], Text File [51.98kb], MATLAB (GCE Toolbox) [713.39kb], MATLAB (Variables) [481.20kb], Text Report [154.32kb]
Column List:(hide)
Column |
Name |
Units |
Type |
Description |
1 |
Year |
YYYY |
integer |
Calendar year of observation |
2 |
Month |
MM |
integer |
Calendar month of observation |
3 |
Day |
DD |
integer |
Calendar day of observation |
4 |
Site |
None |
integer |
GCE-LTER sampling site number |
5 |
Zone |
None |
integer |
Marsh zone code (1=Creekbank, 2=Mid-marsh) |
6 |
Plot |
None |
integer |
GCE-LTER permanent plot number |
7 |
Location |
none |
string |
Geographic location code in the GCE Metadata Database for the sampling plot |
8 |
Flag_Location |
none |
string |
QA/QC flags for Geographic location code in the GCE Metadata Database for the sampling plot (flagging criteria, where "x" is Location: manual) |
9 |
Location_Notes |
none |
string |
Notes on location assignments and geographic accuracy |
10 |
Longitude |
degrees |
floating-point |
Geographic longitude in decimal degrees |
11 |
Flag_Longitude |
none |
string |
QA/QC flags for Geographic longitude in decimal degrees (flagging criteria, where "x" is Longitude: x<-180="I", x>180="I", manual) |
12 |
Latitude |
degrees |
floating-point |
Geographic latitude in decimal degrees |
13 |
Flag_Latitude |
none |
string |
QA/QC flags for Geographic latitude in decimal degrees (flagging criteria, where "x" is Latitude: x<-90="I", x>90="I", manual) |
14 |
Species |
None |
string |
Latinized name of the mollusc species collected |
15 |
Mollusc_Count |
Count |
integer |
Number of individuals collected in the specified quadrat |
16 |
Flag_Mollusc_Count |
none |
string |
QA/QC flags for Number of individuals collected in the specified quadrat (flagging criteria, where "x" is Mollusc_Count: x<0="I", x<0="Q", x>75="Q") |
17 |
Quadrat_Area |
m^2 |
floating-point |
Number of square meters in the quadrat sampled |
18 |
Flag_Quadrat_Area |
none |
string |
QA/QC flags for Number of square meters in the quadrat sampled (flagging criteria, where "x" is Quadrat_Area: x<0.0625="I", x<0.0625="Q", x>0.5="Q", x>0.5="I") |
19 |
Mollusc_Density |
Count/m^2 |
floating-point |
Calculated number of individuals per meter squared |
20 |
Flag_Mollusc_Density |
none |
string |
QA/QC flags for Calculated number of individuals per meter squared (flagging criteria, where "x" is Mollusc_Density: x<0="I", x<0="Q", x>896="Q") |
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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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Bishop, Thomas Dale. 2005. Mollusc population abundance monitoring: Fall 2003 mid-marsh and creekbank infaunal and epifaunal mollusc abundance based on collections from GCE marsh, monitoring sites 1-10. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/81e9040300e43666830c20098c551310
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