Dataset: fairy basslet counts post-invasion
Deployment: LSI_Reef_Surveys_09-12

Counts of fairy basslet on Bahamian reefs after invasion by red lionfish.

Lead Principal Investigator:

Mark Hixon (Oregon State University, OSU)

Scientist:

Kurt Ingeman (Oregon State University, OSU)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Ecological Release and Resistance at Sea: Invasion of Atlantic Coral Reefs by Pacific Lionfish (Lionfish Invasion)

Current State:

Final no updates expected

Version:

17 April 2013

Version Date:

2013-04-17

Data URL:

https://www.bco-dmo.org/dataset-deployment/455939/data

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Description

Results of fairy basslet (Gramma loreto) surveys on historically monitored ledges near Lee Stocking Island, Bahamas following the invasion by red lionfish (Pterois volitans). (Part of sub-project titled, "Fairy basslet post-lionfish invasion monitoring".)

Methods & Sampling

Dataset acquisition description

Censuses were made of historically monitored fairy basslet populations near Lee Stocking Island, Bahamas, providing an unprecedented before-after comparison for detecting the effects of the invasion by red lionfish.

Using historical data as a pre-invasion baseline, these data were used to quantify changes in abundance and density of fairy basslet at the local population level, correlated with the local density of lionfish. Analysis indicates an overall negative population trend since the onset of the invasion.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing Notes:
- Modified parameter names to conform with BCO-DMO naming conventions.
- Added lat and lon values for the reef site included in the original metadata.
- Replaced blanks with 'nd' to indicate 'no data'.
- Added the 'species_name' column, based on 'species_code'.
- Transposed columns to rows for the length bins; added 'lenbin_min' and 'lenbin_max' columns, based on values reported in metadata.
- 28-Dec-2017: removed embargo from dataset.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0851162	NSF Division of Ocean Sciences

Instruments

None available yet

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
day	2-digit day of month when survey took place.	dd (01 to 31)	day
month	2-digit month of year when survey took place.	mm (01 to 12)	month
species_code	4-letter genus species code (typically first two letters are the first two of the genus and last two letters are the first two of the species).	code	taxon_code
year	4-digit year when survey took place in YYYY format.	unitless	year
date	Date of survey in mm/dd/YYYY format.	unitless	date
species	Scientific name of species (Genus species).	text	species
lat_site	Latitude of the reef site.	decimal degrees	lat
lat	Latitude of the specific reef location.	decimal degrees	lat
lon_site	Longitude of the reef site.	decimal degrees	lon
lon	Longitude of the specific reef location.	decimal degrees	lon
lenbin_max	Maximum of length bin range (centimeters).	cm	lenbin_max
lenbin_min	Minimum of length bin range (centimeters).	cm	lenbin_min
site	Name of the reef site.	text	site
notes	Notes regarding nearby predators, visibility, etc.	text	comment
num_fish_len	Number of individuals observed of given length range.	integer	num_fish_len
location	One of two proximate study sites: Outer WH = Outer White Horse study site Innner WH = Inner White Horse study site	text	site_descrip
count_total	Total abundance of fairy basslet of all sizes for a given date at a given location.	integer	count
ledge_tag_orig	Two-digit numeral corresponding to historical ear tag ledge marker.	dimensionless	Site_ID
ledge_tag_new	Two-digit numeral corresponding to replaced ear tag ledge marker.	dimensionless	Site_ID

Database

Contribute Data

Dataset: fairy basslet counts post-invasion
Deployment: LSI_Reef_Surveys_09-12

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: fairy basslet counts post-invasionDeployment: LSI_Reef_Surveys_09-12

Dataset acquisition description

Dataset Processing Description

Dataset: fairy basslet counts post-invasion
Deployment: LSI_Reef_Surveys_09-12