Dataset: lionfish density effect on movement

Name: Lionfish movements to/from reefs observed during study of effect of density on lionfish behavior at Eleuthera, Bahamas in 2012 (Lionfish Invasion project)
Published: 2013-07-09
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.3991.1

Spatial Extent: N:24.87336 E:-76.24447 S:24.79488 W:-76.28902

Temporal Extent: 2012-07-06 - 2012-08-30

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:

2013-07-09

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Lionfish movements to/from reefs observed during study of effect of density on lionfish behavior at Eleuthera, Bahamas in 2012 (Lionfish Invasion project)

Abstract:

An observational field study was conducted on natural patch reefs with varying lionfish densities to determine if local invasive lionfish density affects lionfish behavior. This dataset contains counts of lionfish present on reefs at the start and end of each reef visit, to get a measure of collective foraging range. The observations took place on natural reefs near Rock Sound, Eleuthera, Bahamas from 16 July to 30 August 2012.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2013-07-09	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.3991.1	2019-11-12

Description

Also see related dataset from sub-project "Effect of invasive lionfish density on behavior": lionfish density effect on behavior

Related Publications:
Benkwitt, C.E. In Prep. Higher invasive lionfish densities lead to increased collective foraging range.

Methods & Sampling

Each reef was visited at three times of day: dawn, midday, and dusk, and two focal lionfish were observed during each visit at each reef. Focal lionfish were observed for 10 minute intervals and all activity was recorded. The number of lionfish on each reef was counted at the beginning of the observation period and again at the end, to get a measure of how many were leaving/returning to the reef from the surrounding seagrass.

Data Processing Description

BCO-DMO Processing Notes:
- Modified parameter names to conform with BCO-DMO naming conventions.
- Added lat and lon values for each site included in the original metadata.
- Replaced blanks with 'nd' to indicate 'no data'.
- 08-Jan-2018: removed embargo from dataset.

Data Files

File
lionfish_density_eff_movement.csv (Comma Separated Values (.csv), 4.78 KB) MD5:b824c7706d61ca9b102ab1096d76dde4 Primary data file for dataset ID 3991

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
Eleuthera_Reef_Surveys_2012		2012-07-03	Cape_Eleuthera_Reefs	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 individual reef site.	text	site
lat	Latitude of the reef site.	decimal degrees	lat
lon	Longitude of the reef site.	decimal degrees	lon
surface_area	Surface area of reef (meters squared).	m^2	no_bcodmo_term
time_of_day	Classified as Dawn, Midday, or Dusk	text	time_of_day
date	Date of observation (month/day/year) in mm/dd/YYYY format.	unitless	date
count_start	Number of lionfish present at the reef at the start of the observation.	integer	count
count_end	Number of lionfish present at the reef at the end of the observation.	integer	count
density_start	Lionfish density at site at the start of the observation (number of lionfish per meter squared).	#/m^2	no_bcodmo_term
density_end	Lionfish density at site at the end of the observation (number of lionfish per meter squared).	#/m^2	no_bcodmo_term
change_in_count	Change in number of lionfish on reef from the start of the observation to the end of the observation.	integer	no_bcodmo_term
change_in_density	Change in density of lionfish on reef from the start of the observation to the end of the observation (number per meter squared).	#/m^2	no_bcodmo_term
highest_count	Highest number of lionfish seen on the reef during any observation period.	integer	count
highest_density	Highest density of lionfish seen on the reef during any observation period (number per meter squared).	#/m^2	no_bcodmo_term