Dataset: fairy basslet counts post-invasion

Name: Results of fairy basslet (Gramma loreto) surveys on historically monitored ledges near Lee Stocking Island, Bahamas following invasion by red lionfish (Pterois volitans), 2009-2012 (Lionfish Invasion project)
Published: 2013-04-17
Keywords: biota, oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.3915.1

Spatial Extent: N:23.80456 E:-76.10725 S:23.80456 W:-76.1362

Temporal Extent: 2009-07-10 - 2010-12-19

Project:

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

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)

Version:

Version Date:

2013-04-17

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Results of fairy basslet (Gramma loreto) surveys on historically monitored ledges near Lee Stocking Island, Bahamas following invasion by red lionfish (Pterois volitans), 2009-2012 (Lionfish Invasion project)

Abstract:

Results of fairy basslet (Gramma loreto) surveys on historically monitored ledges near Lee Stocking Island, Bahamas following invasion by red lionfish (Pterois volitans), 2009-2012.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2013-04-17	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.3915.1	2019-10-31

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

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

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.

Data Files

File
fairy_basslet_post-invasion.csv (Comma Separated Values (.csv), 160.43 KB) MD5:a8ec73fbff20adea0f0356359c28b40a Primary data file for dataset ID 3915

More Information about this dataset

Funding Sources

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

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
LSI_Reef_Surveys_09-12		2009-05-30	Tropical Marine Lab at Lee Stocking Island	Mark Hixon (Lead Principal Investigator)	data info

Instruments

None available yet

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
site	Name of the reef site.	text	site
lat_site	Latitude of the reef site.	decimal degrees	lat
lon_site	Longitude of the reef site.	decimal degrees	lon
location	One of two proximate study sites: Outer WH = Outer White Horse study site Innner WH = Inner White Horse study site	text	site_descrip
date	Date of survey in mm/dd/YYYY format.	unitless	date
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
year	4-digit year when survey took place in YYYY format.	unitless	year
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
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
species	Scientific name of species (Genus species).	text	species
count_total	Total abundance of fairy basslet of all sizes for a given date at a given location.	integer	count
notes	Notes regarding nearby predators, visibility, etc.	text	comment
lenbin_min	Minimum of length bin range (centimeters).	cm	lenbin_min
lenbin_max	Maximum of length bin range (centimeters).	cm	lenbin_max
num_fish_len	Number of individuals observed of given length range.	integer	num_fish_len
lat	Latitude of the specific reef location.	decimal degrees	lat
lon	Longitude of the specific reef location.	decimal degrees	lon