Dataset: Density of juvenile corals on reef surfaces

Name: Density of juvenile corals on reef surfaces in St. John, US Virgin Islands from 1994 to 2020
Published: 2021-06-23
Keywords: scleractinia, juvenile, Coral, reef, Caribbean, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.854417.1

Spatial Extent: N:18.316 E:-64.623 S:18.308 W:-64.731

Temporal Extent: 1994 - 2020

Project:

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

Principal Investigator:

Peter J. Edmunds (California State University Northridge, CSUN)

BCO-DMO Data Manager:

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

Version:

Version Date:

2021-06-23

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Density of juvenile corals on reef surfaces in St. John, US Virgin Islands from 1994 to 2020

Abstract:

These data are presented in Edmunds (2021) Figure 2 and refer to juvenile corals (≤ 4 cm diam) found on natural reef substrata in St. John, US Virgin Islands from 1994 to 2020.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2021-06-23	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.854417.1	2021-06-25

Methods & Sampling

Location: St. John, US Virgin Islands. 18.315°N, 64.716°W

Excerpt from publication Biology Letters

Juvenile corals

Juvenile corals were ≤ 4-cm diameter, and were surveyed from 1994 to 2020 at six sites. Juveniles were unlikely to be sexually mature, and were identified assuming sexual maturity is reached at ~ 4 cm diameter. Favia fragum and Siderastrea radians probably achieved sexual maturity at < 4 cm and were excluded from the analyses.

Juvenile corals were counted in quadrats (0.5 × 0.5 m, n = 40) randomly placed along one 40-m transect at each site, with surveys conducted in May (1995-1995) or July/August (1994 and 1998-2020). Corals were identified to species or genus, and the results pooled among taxa.

Site List:

Cabritte Horn,18.308,-64.722
East Tektite,18.311,-64.722
West Tektite,18.312,-64.623
Donkey Bite,18.316,-64.721
Yawzi Point,18.315,-64.726
White Point,18.314,-64.731

Data Processing Description

SYSTAT version 13.0, from Systat Software, Inc., San Jose California USA.

BCO-DMO Data Manager Processing Notes:

* Data table imported into the BCO-DMO data system from source file "Data in Paper 25 May 2021_Table 2.xlsx" Sheet name "Table 2."

* Modified parameter (column) names to conform with BCO-DMO naming conventions (only A-Z,a-z,0-9 and underscores. No spaces).

Data Files

File
juv_density_substr.csv (Comma Separated Values (.csv), 4.42 KB) MD5:c67d116224c4c43e17e3d6647880f66b Primary data file for dataset ID 854417

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-2019992

Deployments

None available yet

Instruments

None available yet

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Year	Year of measurement	unitless	year
Decade	Decade of measurement [1 = 1994-1999, 2 = 2000-2009, 3 = 2010-2020]	unitless	no_bcodmo_term
Site	Site: White Point, Yawzi Point, Donkey Bite, East Tektite, and Cabritte Horn -- see Edmunds (2021, Fig. 1A).	unitless	site
Corals_per_quadrat	Number of juvenile corals (pooled among taxa) per quadrat, with the quadrat = 0.5 x 0. 5 m	number per quadrat	density
Porites_per_quadrat	Number of juvenile Porites per quadrat, with the quadrat = 0.5 x 0. 5 m	number per quadrat	density

Database

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Dataset: Density of juvenile corals on reef surfaces