Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

INV-GCEM-0704b2

Research Theme:

Aquatic Invertebrate Ecology (Monitoring)

Contributors:

Thomas Dale Bishop, Ken Helm, Jacob Shalack, Caroline McFarlin, Becky Greene, Wayne Listing, Josh Avitan, Jennifer Lindell, Jenny Fenton

Title:

Mollusc population size distribution monitoring: Spring 2004 mid-marsh and creekbank infaunal and epifaunal mollusc size distributions based on collections from GCE marsh, monitoring sites 1-10

Abstract:

This data set is the Spring 2004 report of infaunal and epifaunal mollusc species' size distributions at the GCE-LTER marsh sites used for population monitoring. Infaunal and epifaunal molluscs were hand-collected from within quadrats of known area from 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, measured and counted (count data is reported separately). Length of each measurable individual was determined using calipers or small etched rulers under a stereomicroscope. Species abundance and density data for these collections may be found in the GCE-LTER data set INV-GCEM-0704b1. Numbers of individuals of each species in the abundance data file may not correspond exactly to the numbers of individuals in the size data file because some individuals may not have been measureable.

DOI:

10.6073/pasta/4354213d026645b30e8ac9851f7c22bb

Key Words:

Aquatic Invertebrate Monitoring, community composition, creek bank, Detracia, epifauna, Geukensia, Hydrobiidae, infauna, intertidal, length, Littoraria, Littorina, marshes, Melampus, mid-marsh, mollusks, monitoring, permanent plots, Polymesoda, size distribution, species diversity, spring, Succineidae

LTER Core Area:

Population Studies

Research Themes:

GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Aquatic Invertebrate Ecology

Study Period:

09-May-2004 to 12-May-2004

Study Sites:

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

» Download Geographic Coverage: Google Earth

Species References:

Detracia floridana, Geukensia demissa, Hydrobiidae, Littoraria irrorata, Melampus bidentatus, Polymesoda caroliniana, Succineidae

Data References:

INV-GCEM-0704b1 (Corresponding abundance data set)

Project References:

Invasive species, Marine invertebrate monitoring

Downloads:

Data Table: INV-GCEM-0704b2 (Main data table for data set INV-GCEM-0704b2, 1915 records)

Access: Public (released 27-Apr-2007)

Metadata: Text (ESA FLED), XML (Ecological Metadata Language)

Data Formats: Spreadsheet (CSV) [165.64kb], Text File [141.61kb], MATLAB (GCE Toolbox) [1060.44kb], MATLAB (Variables) [822.05kb], Text Report [247.79kb]

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_Length	mm	floating-point	Length of measurable individuals collected from each plot
16	Flag_Mollusc_Length	none	string	QA/QC flags for Length of measurable individuals collected from each plot (flagging criteria, where "x" is Mollusc_Length: x<0="I", x<1.4="Q", x>126.3="Q")
17	Condition	none	integer	Binary code to indicate shell condition of the individual specimen.

Statistics:

Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS

Citation:

Bishop, Thomas Dale. 2007. Mollusc population size distribution monitoring: Spring 2004 mid-marsh and creekbank infaunal and epifaunal mollusc size distributions 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/4354213d026645b30e8ac9851f7c22bb

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