Dataset: Diadema mexicanum population densities in Pacific Panama 2016-2018

Name: Sea urchin (Diadema mexicanum) counts from video transects of reefs off Pacific Panama collected between 2016 and 2018
Published: 2022-11-17
Keywords: Sea Urchin, bioerosion, oceans

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Cite This Dataset

Spatial Extent: N:8.63174 E:-79.0284 S:7.40309 W:-81.7588

Temporal Extent: 2016 - 2018

Project:

Collaborative Research: Climate Change, Mesoscale Oceanography, and the Dynamics of Eastern Pacific Coral Reefs (Coral Climate ETP)

Principal Investigator:

Dr Richard B. Aronson (Florida Institute of Technology, FIT)

Co-Principal Investigator:

Dr Lauren T. Toth (United States Geological Survey, USGS)

Scientist:

Victor Rodriguez-Ruano (Florida Institute of Technology, FIT)

BCO-DMO Data Manager:

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

Version:

Version Date:

2022-11-17

Restricted:

Validated:

Current State:

Data not available

Sea urchin (Diadema mexicanum) counts from video transects of reefs off Pacific Panama collected between 2016 and 2018

Abstract:

These data include counts of the sea urchin Diadema mexicanum for reefs off Pacific Panamá that were collected between 2016 and 2018. D. mexicanum individuals were counted for video transects that encompassed an area of 25 x 1 m. These data provide insight into the status of the sea urchin population and the amount of bioerosion pressure that these reefs are experiencing. The video transects were collected by students from Northeastern University's Three Seas Program and processed by Victor Rodriguez-Ruano.

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Methods & Sampling

Six 25 x 1 m video belt-transects were haphazardly captured at each site for each sampling period by SCUBA divers with a GoPro camera, which was pointed down and positioned 1 m from the reef surface as they travelled along the transect at a constant speed. The abundance of sea urchins, which were predominantly Diadema mexicanum, were then used to estimate sea urchin density (ind. m-2).

Organism scientific name and Lifesciences Identifier (LSID):
Diadema mexicanum (urn:lsid:marinespecies.org:taxname:513223)

Data Processing Description

BCO-DMO Data Manager Processing Notes:
* Sheet name "Sheet2" of source file "Diadema_VideoT_Master_BCO.xlsx" was imported into the BCO-DMO data system as the main data table for this dataset.
* Geospatial bounds were calculated from latitudes and longitudes within the data table.
* "Date" column containing Spring|Fall and year broken into separate "Season" and "Year" columns.
* lat/lon values rounded to 5 decimal places.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1535007

Deployments

None available yet

Instruments

Camera

Supplied Name: GoPro Hero 4

Supplied Description:

Instrument Type

Generic Name: Camera

Acronym: camera

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/311/

Generic Description:

All types of photographic equipment including stills, video, film and digital systems.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Season	Time of the year when the data were collected (Spring or Fall)	unitless	season
Year	Year the data were collected Format: %Y	unitless	date
Gulf	Specifies whether the data were collected in the Gulf of Panama or Chiriqui	unitless	site_descrip
Site	Experimental site	unitless	site
Longitude	Longitude	decimal degrees	lat
Latitude	Latitude	decimal degrees	lon
Transect	Transect number	unitless	transect
Diadema	Abundance of Diadema spp. sea urchins	number of individuals	abundance
Area	Area covered by the video transect	square meters (m2)	area_measured
Density	Population density of Diadema spp. for each transect	individuals per square meter (ind/m2)	density

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Database

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Dataset: Diadema mexicanum population densities in Pacific Panama 2016-2018