Dataset: Light intensity (lux) of downwelling light upon the benthos along differing conditions of octocoral canopy formation in East Cabritte, in Grootpan Bay, St. John U.S. Virgin Islands in March of 2019

Final no updates expectedDOI: 10.26008/1912/bco-dmo.892300.1Version 1 (2023-03-21)Dataset Type:Other Field Results

Principal Investigator: Peter J. Edmunds (California State University Northridge)

Student: John Girard (California State University Northridge)

BCO-DMO Data Manager: Amber D. York (Woods Hole Oceanographic Institution)

Project: Collaborative Research: Pattern and process in the abundance and recruitment of Caribbean octocorals (Octocoral Community Dynamics)

Project: RUI: Pattern and process in four decades of change on Caribbean reefs (St John Coral Reefs)

Abstract

These data represent the light intensity (lux) of downwelling light upon the benthos along differing conditions of octocoral canopy formation. Measurements were recorded every second from 05:00:00 to 15:38:00 (Local Time, Atlantic Standard Time, GMT-04:00) on March 10th, 2019 using HOBO light loggers (model UA-0002-64). Loggers were placed at ~9-m depth at East Cabritte, in Grootpan Bay, St. John U.S. Virgin Islands. These data were used to evaluate the potential creation of differential light r...

Show more
Cite Dataset

XXX

Views

XX

Downloads

X

Citations

Location:
East Cabritte, Grootpan Bay St. John, U.S. Virgin Islands at 9-m depth.
Research conducted from the University of the Virgin Islands Marine Station in Lameshur Bay during March 2019.

Methods & Sampling:
Measurements were recorded every second from 05:00:00 to 15:38:00 (Local Time, Atlantic Standard Time, GMT-04:00) on March 10th, 2019 using HOBO light loggers (model UA-0002-64). Loggers were placed at ~9-m depth at East Cabritte, in Grootpan Bay, St. John U.S. Virgin Islands.

Each logger was secured in the center of a quadrat (1 m2), in which octocorals were censused, and a level was used to fix the sensor perpendicular to the horizon. Deployment occurred on days characterized by sunshine and scattered clouds, and low wind speeds of ~ 6.0–8.5 m s-1 (CariCOOS buoy 41052, ~ 8 km SW of Cabritte Horn).

Instruments:
HOBO Light and Temperature Logger, Model UA-0002-64

Related Datasets

IsRelatedTo
Dataset: Benthic Invertebrate Abundances associated with Octocoral Forests of St. John, US Virgin Islands
Relationship Description: Octocoral measurements and invertebrate counts were done in the same quadrats. Therefore, the quadrat IDs correspond to each other across community & canopy data sets.
Girard, J., Edmunds, P. J. (2023) Benthic invertebrate abundances associated with octocoral forests in St. John, US Virgin Islands from July 2019 to Jan 2020. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-03-21 doi:10.26008/1912/bco-dmo.892248.1
IsRelatedTo
Dataset: St. John Octocoral Forest Closure Photo Analysis for Community Quadrats
Relationship Description: Octocoral measurements and invertebrate counts were done in the same quadrats. Therefore, the quadrat IDs correspond to each other across community & canopy data sets.
Girard, J., Edmunds, P. J. (2023) Canopy closure values from photographs taken within octocoral forests in Lameshur Bay St. John, U.S. Virgin Islands from July 2019 to Jan 2020. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-03-21 doi:10.26008/1912/bco-dmo.892258.1
IsRelatedTo
Dataset: Canopy Closure Data of the Octocoral Forests sampled for Light Intensity, St. John U.S. Virgin Islands
Relationship Description: Octocoral measurements and invertebrate counts were done in the same quadrats. Therefore, the quadrat IDs correspond to each other across community & canopy data sets.
Girard, J., Edmunds, P. J. (2023) Canopy closure values from photographs taken within octocoral forestsalong the south shore of St. John, U.S. Virgin Islands in March of 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-03-21 doi:10.26008/1912/bco-dmo.892323.1
IsRelatedTo
Dataset: Light intensity measurements associated with Octocoral Canopies from Yawzi Point, St. John, U.S. Virgin Islands
Relationship Description: Octocoral measurements and invertebrate counts were done in the same quadrats. Therefore, the quadrat IDs correspond to each other across community & canopy data sets.
Girard, J., Edmunds, P. J. (2023) Light intensity (lux) of downwelling light upon the benthos along differing conditions of octocoral canopy formation in Lameshur Bay St. John, U.S. Virgin Islands in March of 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-03-21 doi:10.26008/1912/bco-dmo.892272.1
IsRelatedTo
Dataset: Octocoral Sensus Data for Light Quadrats at Yawzi Point and East Cabritte sites in St. John, U.S. Virgin Islands
Relationship Description: Octocoral measurements and invertebrate counts were done in the same quadrats. Therefore, the quadrat IDs correspond to each other across community & canopy data sets.
Girard, J., Edmunds, P. J. (2023) Octocoral canopy metrics (mean height, density, and closure) in St. John, US Virgin Islands in March of 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-03-21 doi:10.26008/1912/bco-dmo.892293.1

Related Publications

Results
Girard, J. F., & Edmunds, P. J. (2023). Effects of arborescent octocoral assemblages on the understory benthic communities of shallow Caribbean reefs. Journal of Experimental Marine Biology and Ecology, 561, 151870. https://doi.org/10.1016/j.jembe.2023.151870

Girard, J., Edmunds, P. J. (2023) Light intensity (lux) of downwelling light upon the benthos along differing conditions of octocoral canopy formation in East Cabritte, in Grootpan Bay, St. John U.S. Virgin Islands in March of 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-03-21 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.892300.1 [access date]

Terms of Use

This dataset is licensed under Creative Commons Attribution 4.0.


If you wish to use this dataset, it is highly recommended that you contact the original principal investigators (PI). Should the relevant PI be unavailable, please contact BCO-DMO (info@bco-dmo.org) for additional guidance. For general guidance please see the BCO-DMO Terms of Use document.

NSF Logo©2020 Biological and Chemical Oceanography Data Management Office.
Funded by the U.S. National Science Foundation