Dataset: Turf Polyp Counts

Name: Polyp settlement and polyp counts on experimental tiles with different levels of turf algae cover during an in-situ experiment in St. John, US Virgin Islands in August and September of 2019.
Published: 2021-07-16
Keywords: epilithic algal matrix, Gorgonian, mesofaunal predators, Octocorallia, Cox mixed effects model, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.855867.1

Spatial Extent: N:18.309 E:-64.719 S:18.309 W:-64.719

Temporal Extent: 2019-08-01 - 2019-09-29

Project:

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

Principal Investigator:

Howard Lasker (State University of New York at Buffalo, SUNY Buffalo)

Scientist:

Angela Martinez-Quintana (State University of New York at Buffalo, SUNY Buffalo)

Kaitlyn Tonra (State University of New York at Buffalo, SUNY Buffalo)

Christopher Wells (State University of New York at Buffalo, SUNY Buffalo)

Contact:

Christopher Wells (State University of New York at Buffalo, SUNY Buffalo)

Technician:

Emily Anderson (State University of New York at Buffalo, SUNY Buffalo)

BCO-DMO Data Manager:

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

Version:

Version Date:

2021-07-16

Restricted:

Release Date:

2021-09-01

Validated:

Yes

Current State:

Final no updates expected

Polyp settlement and polyp counts on experimental tiles with different levels of turf algae cover during an in-situ experiment in St. John, US Virgin Islands in August and September of 2019.

Abstract:

Polyp settlement and polyp counts on experimental tiles with different levels of turf algae cover (low: “scrubbed”; medium: “reef”; high: “protected”) up to 57 days after settlement. The in-situ experiment took place in Grootpan Bay, St. John, US Virgin Islands between August 3rd to September 9th, 2019.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2021-07-16	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.855867.1	2021-09-14

Methods & Sampling

Methodology:

Custom-fired stoneware clay tiles were deployed and conditioned on an octocoral-dominated reef in Grootpan Bay, St. John, U.S. Virgin Islands. One of three treatments was applied to each tile (n = 8 per treatment): a control, referred to as Reef; scrubbed with a soft nylon bristle brush, referred to as Scrubbed; or removed from the reef and maintained in a sea table for 15 days, referred to as Protected. Tiles were placed into 41 29 17 cm plastic containers filled with 12 L of 10 m filtered seawater. Two tiles from the same treatment were placed in each container on top of 1 cm square plastic mesh, rolled into 5 cm tall cylinders so that tiles were lifted off the bottom of the container to provide water circulation underneath. Competent planulae (n = 150) were added to each container and allowed to settle for eight days and then polyps were counted.

Nine days after adding planulae, the tiles were deployed onto the reef at Grootpan Bay, where the tiles were initially conditioned. We counted the number of polyps on the undersides of the tiles on the day of deployment (day 0) and 2, 5, 9, 14, 19, and 57 days after deployment. On 9 of the 24 tiles, polyps were also counted and mapped on days 6, 9, 11, 14, 16, 19, and 57 to assess polyp survival and quantify settlement in the field.

Location: Grootpan Bay, St. John, U.S. Virgin Islands (also known as East Cabritte in other studies) (18.309, -64.719). All tiles were deployed at this site.

Data Processing Description

BCO-DMO data manager processing notes:

* Data from file NSF.Turf_Exp_polyp_counts.xlsx sheet "data" imported into the BCO-DMO data system.
* Converted Date to ISO format yyyy-mm-dd
* Renamed data columns to meet BCO-DMO naming conventions (only [a-zA-Z0-9] and underscores). Periods changed to underscores.

Data Files

File
turf_polyp_counts.csv (Comma Separated Values (.csv), 9.23 KB) MD5:3d59813d954bfcce22b030160049bcb4 Primary data file for dataset ID 855867

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1756381

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
container	container number the tiles started out in during the laboratory experiment (1 to 12)	unitless	sample_descrip
tile_letter	tile letter within each container (either A or B)	unitless	sample_descrip
tile_code	individualized code for each tile: concatenated container and tile letter	unitless	sample_descrip
tag	tile tag number when placed out in the field	unitless	sample_descrip
treatment	which pre-treatment the tile experienced	unitless	treatment
date	date of polyp count in ISO 8601 format yyyy-mm-dd Format: %Y-%m-%d	unitless	date_local
day	experimental day the polyps were counted (either counted at the conclusion of the lab settlement period [lab.count] or during the field experiment [0 through 57]	unitless	time_elapsed
polyps_bottom	number of polyps on the bottom of the tile	per individual polyp	count
polyps_side	number of polyps on the side of the tile	per individual polyp	count
polyps_top	number of polyps on the top of the tile	per individual polyp	count
polyps_total	total number of polyps on the tile	per individual polyp	count

Status message

Database

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Dataset: Turf Polyp Counts