Dataset: LTVR - Percent Visual Cover
Deployment: Osenberg_et_al_Moorea

Percent Visual Cover on the Long Term Vermetid Removal Reefs

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)

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Spatial patterns of coral-vermetid interactions: short-term effects and long-term consequences (Vermetids_Corals)

Current State:

Preliminary and in progress

Version:

23 May 2016

Version Date:

2016-05-23

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/645782/data

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Description

Coral, algae, and invertebrates were observed, and their percent cover on each of the patch reefs used in the vermetid removal study (both vermetid removal and non-removal reefs were assessed). These data were collected beginning in 2012 at each reef. These data are meant to provide contextual information for how vermetids affect reef communities.

Long Term Vermetid Removal (LTVR) Reef sites in this project are manipulated reefs characterized in the Long Term Reef Physical Characteristics dataset.

Reefs labeled "TOW" in this dataset, numbered 129-144, are a subset of a larger number of Long Term Reefs (LTR) that were monitored as part of the project "Cryptic density dependence: the effects of spatial, ontogenetic, and individual variation in reef fish" beginning in 2003. This long term study continues to monitor those reefs in addition to reefs 193-198 starting in 2012. Data for these reefs between the years 2003 and 2009 can be found on the project site http://www.bco-dmo.org/project/540423.

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

Other associated LTVR datasets:
LTVR - Fate of Reefs - Contains latitude and longitude of reefs used in this dataset
LTVR - Physical Characteristics - Contains characteristics of reefs used in this dataset.
LTVR - Fish Survey
LTVR - Percent Cover Point Contact
LTVR - Pomacentrids
LTVR - Thalasssoma
LTVR - Vermetid Counts
LTVR - Vermetid Removal
LTVR - Vermetid Sizes in Quadrat

Methods & Sampling

Dataset acquisition description

Sampling and Analytical Methodology:
One person swims around the reef and visually estimates the relative cover of different substrates. Divers ignored taxa that covered less 2% of the benthos. The investigators also completed point contact surveys to verify their estimates, see “LTVR_PercentCoverPointContact” sheet for more details.

Materials: diver and slates

Data Processing Description

Dataset Processing Description

Data Processing:
To obtain “TOTALPOINTS”: Sum across all species columns, should sum to close to 100.

NA- Not applicable (never recorded) to this data set
NR- Not recorded at certain times throughout the data set

BCO-DMO Processing Notes
- Generated from original file "LTVR_PercentVisualCover.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 version 2: 2017-12-20 replaces data version 1: 2016-05-23 and extends the dataset time range to 2016.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1130359	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 (CWO-Craig Osenberg; JS-Jeff Shima)	text	person
Reef_let	Reef_let (does not apply to this data set)	NA	site
SITE	Location of reefs (TOW)	text	site
REEF	Reef # (129-144; 193-198)	dimensionless	site
TREATMENT	Indicates removal versus control for each reef (Control; Removal)	text	treatment
PSPSMOO	Porites sp. (Smooth) (Range: 0-100)	number of individuals	number
PSPRIDG	Porites sp. (Ridged) (Range: 0-100)	number of individuals	number
PSPCOLUM	Porites sp. (Columnar) (Range: 0-100)	number of individuals	number
PRUS	Porites rus (Range: 0-100)	number of individuals	number
MONTIP	Montipora spp. (Range: 0-100)	number of individuals	number
POC	Pocillopora spp. (Range: 0-100)	number of individuals	POC
ACROP	Acropora spp. (Range: 0-100)	number of individuals	number
OTHCORAL	Total coverage of other live coral (Range: 0-100)	number of individuals	number
TURF	Stegastes sp. turf (Range: 0-100)	number of individuals	number
TURF_steg	Turf in Stegastes territories (Range: 0-100)	number of individuals	number
TURF_surg	Turf grazed by Acanthurids (Range: 0-100)	number of individuals	number
TURBINAR	Turbinaria sp. (Range: 0-100)	number of individuals	number
Bare	Bare substrate; including coralline algae (Range: 0-100)	number of individuals	number
PIRREG	Porites irregularis (Range: 0-100)	number of individuals	number
LEPTASTR	Leptastrea spp. (Range: 0-100)	number of individuals	number
PAVONA	Pavona cactus (Range: 0-100)	number of individuals	number
FUNGIA	Fungia spp. (Range: 0-100)	number of individuals	number
MUSSIDAE	other corals (Range: 0-100)	number of individuals	number
CAULERPA	Caulerpa spp. (Range: 0-100)	number of individuals	number
DICTYOTA	Dictyota spp. (Range: 0-100)	number of individuals	number
HALIMEDA	Halimeda spp. (Range: 0-100)	number of individuals	number
PADINA	Padina spp. (Range: 0-100)	number of individuals	number
CYANO	Various growth forms of cyanobacteria (Range: 0-100)	number of individuals	number
GALAXAUR	Galaxaura sp. (Range: 0-100)	number of individuals	number
AMANSIA	Amansia rhodantha (Range: 0-100)	number of individuals	number
SPONGE	Fleshy grey sponge (Range: 0-100)	number of individuals	number
CCA	CCA (crustose coraline algae) (Range: 0-100)	number of individuals	number
OTHER	Total coverage of other dominant substrate: algae; sponges; etc. (Range: 0-100)	number of individuals	number
TOTAL_POINTS	sum of points (Range: 0-100)	number of individuals	number
NOTES	Notes	text	comment

Database

Contribute Data

Dataset: LTVR - Percent Visual Cover
Deployment: Osenberg_et_al_Moorea

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: LTVR - Percent Visual CoverDeployment: Osenberg_et_al_Moorea

Dataset acquisition description

Dataset Processing Description

Dataset: LTVR - Percent Visual Cover
Deployment: Osenberg_et_al_Moorea