Dataset: lionfish density dependence

Name: Results of field experiment testing for density dependence in lionfish growth, immigration, recruitement, and loss; conducted at Lee Stocking Island, Bahamas in 2011 (Lionfish Invasion project)
Published: 2013-06-20
Keywords: biota, oceans

Cite This Dataset

Spatial Extent: N:23.75047 E:-76.14035 S:23.75047 W:-76.14035

Temporal Extent: 2011-06-25 - 2011-08-21

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:

Cassandra E. Benkwitt (Oregon State University, OSU)

BCO-DMO Data Manager:

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

Version:

Version Date:

2013-06-20

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Results of field experiment testing for density dependence in lionfish growth, immigration, recruitement, and loss; conducted at Lee Stocking Island, Bahamas in 2011 (Lionfish Invasion project)

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Description

A field experiment was conducted on artificial patch reefs to test for presence of density dependence in invasive red lionfish (Pterois volitans) recruitment, immigration, loss, and growth (in mass and length). See also: list of lionfish recruits and immigrants (PDF) that appeared on the study reefs during the experiment.

Related Publications:
Benkwitt, C.E. 2013. Density-dependent growth in invasive lionfish (Pterois volitans). Plos ONE 8(6): e66995. doi: 10.1371/journal.pone.0066995

Methods & Sampling

The experiment was conducted near Lee Stocking Island, Bahamas from June to August 2011. The experiment used 10 reefs which were manipulated so that 4 reefs had 0 lionfish on them (controls), and 6 each had a unique density of lionfish (1, 2, 4, 7, 10, or 12). These numbers represent the weighted average weekly lionfish densities (number of lionfish per meter squared) on each reef throughout the whole experiment. Each week, the number of lionfish on each reef was recorded, and new lionfish recruits and immigrants were removed. Every two weeks, lionfish growth in length was re-measured. At the end of the experiment (6 weeks), lionfish growth in mass was re-measured.

Data Processing Description

BCO-DMO Processing Notes:
- Modified parameter names to conform with BCO-DMO naming conventions.
- Replaced blanks with 'nd' ('no data').
- Added lat and lon of the site from the metadata provided.
- 10-Jan-2018: removed embargo on dataset.

Data Files

File
lionfish_density_dep.csv (Comma Separated Values (.csv), 22.35 KB) MD5:3fb72c67de0db3ba7fb1dbd3eae06094 Primary data file for dataset ID 3970

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
len_tot	Total length of lionfish in centimeters.	cm	fish_len
growth	Change in length between last measure and current measure.	cm	no_bcodmo_term
growth_rate	Growth rate (in length) in centimeters per day.	cm/day	no_bcodmo_term
fish_id	Code unique to each individual lionfish. All begin with "L" and are followed by 4 digits.	code	no_bcodmo_term
tag	Unique elastomer tag given to each fish. R or L for right or left side of body. R = red; Y = yellow; B = blue; G = green; O = orange. UC = upper caudal; LC = lower caudal; UM = upper middle.	code	tagid
lat_site	Latitude of the site.	decimal degrees	lat
lon_site	Longitude of the site.	decimal degrees	lon
mass	Mass of lionfish in grams.	g	weight
change_in_mass	Change in mass between last measure and current measure. (Final mass - initial mass).	g	no_bcodmo_term
days_since_last_meas	Number of days since last measurement of lionfish.	integer	time_elapsed
date	Date of measurement/information.	mm/dd/yyyy	date
lionfish_density	Density of lionfish on that reef (number of lionfish per meter squared).	number per m^2	no_bcodmo_term
site	Name of the site.	text	site
location	Individual reef identification. All begin with "A" (for artificial reef) followed by a 2-digit number.	text	site_descrip
present	Whether or not the fish was present on reef. Initial measure = first measure in lab; Present = present on reef; Absent = missing from reef.	text	no_bcodmo_term

Database

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Dataset: lionfish density dependence