Dataset: LTR - Vermetid Counts
Deployment: Osenberg_et_al_Moorea

Long Term Reefs Vermetid Counts

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)

Project:

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

Current State:

Preliminary and in progress

Version:

23 May 2016

Version Date:

2016-05-23

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/645230/data

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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

Dataset acquisition description

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

Dataset 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

More information about this dataset deployment

Funding

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

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

Supplied Name	Supplied description	Supplied Units	Standard Name
DATE	Date data collected	DD-MMM-YYYY	date
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
REEF	Reef # (1-198)	dimensionless	site
LATITUDE	Latitude (South is negative)	decimal degrees	lat
LONGITUDE	Longitude (West is negative)	decimal degrees	lon
TREATMENT	Does not apply to this dataset	NA	treatment
C_maximum_counts	Counts of D. maximum by JS (0-230)	number of individuals	number
NOTES	Notes	text	comment

Database

Contribute Data

Dataset: LTR - Vermetid Counts
Deployment: Osenberg_et_al_Moorea

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: LTR - Vermetid CountsDeployment: Osenberg_et_al_Moorea

Dataset acquisition description

Dataset Processing Description

Dataset: LTR - Vermetid Counts
Deployment: Osenberg_et_al_Moorea