Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

INV-GCEM-2307a

Research Theme:

Aquatic Invertebrate Ecology (Monitoring)

Contributors:

Steven C. Pennings, John Williams

Title:

Mollusc population size distribution monitoring: Fall 2022 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 Fall 2022 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, preserved in ethanol, measured and counted (count data is reported separately). Length of each measurable individual was determined using calipers or an ocular micrometer mounted in a stereomicroscope. Species abundance and density data for these collections may be found in the GCE-LTER data set INV-GCEM-2307. 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:

(not assigned)

Key Words:

abundance, creekbank, density, Detracia, epifauna, fall, Geukensia, Hydrobiidae, Ilyanassa, infauna, intertidal, Littoraria, Littorina, marsh, Melampus, mid-marsh, Molluscs, monitoring, Odostomia, Polymesoda, population, Succineidae, vegetated

LTER Core Area:

Population Studies

Research Themes:

Aquatic Invertebrate Ecology

Study Period:

17-Oct-2018 to 28-Oct-2018

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, Ilyanassa obsoleta, Littoraria irrorata, Melampus bidentatus, Polymesoda caroliniana, Succineidae

Data References:

INV-GCEM-2307 (Corresponding Mollusc Abundance Data Set)

Downloads:

Data Table: INV-GCEM-2307a (Main data table for data set INV-GCEM-2307a, 2677 records)

Access: GCE Members only (public release on 08-Nov-2024)

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

Data Formats: Spreadsheet (CSV) [253.04kb], Text File [210.62kb], MATLAB (GCE Toolbox) [86.62kb], MATLAB (Variables) [91.06kb], Text Report [318.81kb]

Column List:(hide)

Column	Name	Units	Type	Description
1	Year	YYYY	integer	Calendar year of observation
2	Month	M	integer	Calendar month of observation
3	Day	D	integer	Calendar day of observation
4	Site	none	integer	Nominal GCE-LTER sampling site
5	Site_Name	none	string	GCE LTER sampling site name
6	Zone	none	integer	Marsh zone (creekbank or mid-marsh)
7	Plot	none	integer	Replicate plot number
8	Location	none	string	Geographic location code in the GCE Metadata Database for the sampling plot
9	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)
10	Location_Notes	none	string	Notes on location assignments and geographic accuracy
11	Longitude	degrees	floating-point	Geographic longitude in decimal degrees
12	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)
13	Latitude	degrees	floating-point	Geographic latitude in decimal degrees
14	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)
15	Species	none	string	Species Name
16	Mollusc_Length	mm	floating-point	Length of measurable individuals collected from each plot
17	Condition	none	integer	Binary code to indicate shell condition of the individual specimen
18	Notes	none	string	Field sampling notes

Citation:

Pennings, Steven C. 2023. Mollusc population size distribution monitoring: Fall 2022 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. https://gce-lter.marsci.uga.edu/data/INV-GCEM-2307a

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