Dataset: LTR - Vermetid Counts

Name: LTR - Vermetid Counts
Published: 2016-05-23
Keywords: oceans

Project:

Cryptic density dependence: the effects of spatial, ontogenetic, and individual variation in reef fish (CDD_in_Reef_Fish)

Principal Investigator:

Craig Osenberg (University of Georgia, UGA)

Co-Principal Investigator:

Thomas Frazer (University of Florida, UF)

International Collaborator:

Jeffrey Shima (Victoria University of Wellington)

Contact:

Craig Osenberg (University of Georgia, UGA)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

23 May 2016

Version Date:

2016-05-23

Restricted:

Current State:

Preliminary and in progress

LTR - Vermetid Counts

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Description

Vermetid gastropods were counted were calculated on the 192 reefs in 2007, 2009, 2012 and 2014. Beginning in 2012, reefs 129-144 and 193-198 were manipulated for a project studying the effects of Vermetid removals; information pertaining to this manipulation can be found in the project “Spatial patterns of coral-vermetid interactions: short-term effects and long-term consequences”. All data collected on reefs 129-144 and 193-198 beginning in 2012 can also be found under that project. For each reef, the number of Ceraesignum maximum were counted. These data are meant to begin a census of the vermetids present in each site and on each reef to examine spatial and temporal variation in vermetid abundances.

Location: Moorea, French Polynesia (17.48 degrees S, 149.82 degrees W)

Methods & Sampling

Sampling and Analytical Methodology:
A diver swims up to one of the patch reefs and counts all of the vermetids present on each of the 192 reefs; starting in 2007, Dendropoma maximum (vermetid snail) were counted.

Materials: snorkel gear and dive slate

Data Processing Description

Data Processing:
(NA)

BCO-DMO Processing Notes
- Generated from original file "LTR_VermetidCounts.csv" contributed by Rebecca Atkins
- Parameter names edited to conform to BCO-DMO naming convention found at Choosing Parameter Name
- Any blank rows removed

Data Files

File
LTR_VermetidCounts.csv (Comma Separated Values (.csv), 21.19 KB) MD5:90da6e321378cbc68f839d3b1d8d38b4 Primary data file for dataset ID 645222

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0242312

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Osenberg_et_al_Moorea		2003-05-19	Osenberg et al Moorea	Craig Osenberg (Principal Investigator)	data info

Instruments

Diving Mask and Snorkel

Supplied Name: Mask and snorkel

Supplied Description:

Instrument Type

Generic Name: Diving Mask and Snorkel

Generic Description:

A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows underwater divers, including, scuba divers, free-divers, and snorkelers to see clearly underwater.

Snorkel: A breathing apparatus for swimmers and surface divers that allows swimming or continuous use of a face mask without lifting the head to breathe, consisting of a tube that curves out of the mouth and extends above the surface of the water.

Measuring Tape

Supplied Name: Transect Tape

Supplied Description:

Materials: transect tape and slates

Instrument Type

Generic Name: Measuring Tape

Generic Description:

A tape measure or measuring tape is a flexible ruler. It consists of a ribbon of cloth, plastic, fibre glass, or metal strip with linear-measurement markings. It is a common tool for measuring distance or length.

Underwater Writing Slate

Supplied Name: Slate

Supplied Description:

Materials: transect tape and slates

Instrument Type

Generic Name: Underwater Writing Slate

Generic Description:

Underwater writing slates and pencils are used to transport pre-dive plans underwater, to record facts whilst underwater and to aid communication with other divers.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
DATE	Date data collected	DD-MMM-YYYY	date
LATITUDE	Latitude (South is negative)	decimal degrees	lat
LONGITUDE	Longitude (West is negative)	decimal degrees	lon
REEF	Reef # (1-198)	dimensionless	site
TREATMENT	Does not apply to this dataset	NA	treatment
C_maximum_counts	Counts of D. maximum by JS (0-230)	number of individuals	number
OBSERV	Initials of observer (Craig Osenberg; Jeff Shima) (CWO; JS )	text	person
SITE	Site name (VOW; VIW; VOM; VIM; VOE; VIE; MOE; MIE; TOW; TIW; TOE; TIE)	text	site
NOTES	Notes	text	comment

Status message

Database

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Dataset: LTR - Vermetid Counts