<div><p>Location: Caribbean Sea, Southwest Puerto Rico, Lat. 17.8849 Long. -67.01546</p>
<p>Quantitative benthic surveys were made during 2018-2019 at two mesophotic sites El Hoyo (672.460 W, 1752.530 N) and Hole-in-the-Wall (671.330 W, 1753.070N). The two sites are located along the insular slope 11 km south of La Parguera, 44 km to the west. The benthic surveys followed the methodology in Appeldoorn et al. (2015). Diving operations involved a team of three technical divers using closed-circuit rebreathers. Dives were made to target depths of 50 and 70 m at each site. Upon reaching the target depth, divers conducted a continuous high-resolution benthic phototransect 10 m long by 40 cm wide. The photo-transect consisted of 16 sequential quadrat photographs, each 40 x 60 cm. For each 40 x 60 cm digital photograph, benthic taxa (e.g. algae and scleractinian corals) were recorded.</p>
<p>For each 40 x 60 cm digital photograph, percent cover was calculated by overlaying 100 random points using Coral Point Count with an Excel extension (CPCe) (Kohler and Gill 2006). Identifications associated with the random points were classified into 29 ‘‘taxa’’ that focused primarily on the algae and scleractinian corals as follows: corals (13 spp.), gorgonians, sponges, algae (12 taxa including cyanobacteria), sand and pavement.</p></div>
Mesophotic benthic organism counts
<div><p>BCO-DMO Data Manager Processing Notes:<br />
* Zip files containing 37 Excel files were unzipped, converted to csv and imported into the BCO-DMO data system. After communication with the submitter the files starting with "Copy of..." were not imported. <br />
* Columns for site latitude and longitude added from coordinates in the metadata.<br />
* Columns added to dataset from information in the file names (Site, Direction, Transect, Depth, Date). Inconsistencies between filename information and metadata written inside the files were discussed with the submitter.<br />
* Data reformatted from 16 Quadrat columns containing cover values to one column for Quadrat number and one column for Cover value (unpivot operation).<br />
* Statistics calculated below the data table in the Excel files were not imported when the data tables were imported into the BCO-DMO data system. Formulas calculating Total" "Mean" and "Standard deviation" of cover for each quadrat were removed.<br />
* Some date values were corrected after communicating with the submitter and the format made consistent (in ISO 8601 format yyyy-mm-dd).<br />
* Redundant data from a source file Total_Hoyo_70m_W142_080219(1).xlsx removed from the dataset.<br />
* Montastrea faveolata in this dataset changed to the accepted synonym Orbicella faveolata which was already used in some files.</p></div>
846964
Mesophotic benthic organism counts
2021-03-29T15:22:40-04:00
2021-03-29T15:22:40-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:846964
Organism counts from photo-transects collected during quantitative benthic surveys in Southwest Puerto Rico at 50 and 70 m during 2018 and 2019
Organism counts from photo-transects collected during quantitative benthic surveys in Southwest Puerto Rico at 50 and 70 m during 2018 and 2019.
false
Schizas, N. V., Sherman, C. E., Cruz-Motta, J., Schmidt, W. E., Weil, E. F. (2021) Organism counts from photo-transects collected during quantitative benthic surveys in Southwest Puerto Rico at 50 and 70 m during 2018 and 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-04-13 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.846964.1 [access date]
true
1
10.26008/1912/bco-dmo.846964.1
false
Caribbean
Puerto Rico
benthic surveys
MCEs
2021-04-13
Datapackage.json
Frictionless Data Package
https://www.bco-dmo.org/dataset/846964/datapackage.json
application/vnd.datapackage+json
PDF
https://www.bco-dmo.org/dataset/846964/Dataset_description.pdf
application/pdf
ISO 19115-2 (NOAA Profile)
https://www.bco-dmo.org/dataset/846964/iso
application/xml
http://www.isotc211.org/2005/gmd-noaa
Dublin Core
https://www.bco-dmo.org/dataset/846964/dublin-core
application/xml
http://purl.org/dc/elements/1.1/
846964
http://lod.bco-dmo.org/id/dataset/846964
2018-08-21 - 2019-10-31
2018-08-21
2018-08-21
---21
232
--08
2018
2019-10-31
2019-10-31
---31
303
--10
2019
OSPREY
http://www.opengis.net/def/crs/OGC/1.3/CRS84
<http://www.opengis.net/def/crs/OGC/1.3/CRS84> POLYGON((-67.041 17.8755, -67.0222 17.8755, -67.0222 17.8755, -67.0222 17.8845, -67.041 17.8845, -67.041 17.8755))
-67.041
17.8755
-67.0222
17.8845
17.879999989420
-67.031599960326