Dataset: predator surveys LSI
Deployment: LSI_Reef_Surveys_09-12

Predators observed at reefs near Lee Stocking Island, Bahamas

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:

30 April 2012

Version Date:

2012-04-30

Data URL:

https://www.bco-dmo.org/dataset-deployment/455955/data

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Description

Record of predators observed during reef surveys at Lee Stocking Island, Bahamas during July and August 2011. (Part of sub-project titled, "Lionfish effects on fairy basslet population dynamics".)

To quantify to what extent patterns in prey mortality have changed since the arrival of lionfish, the investigators replicated an in situ field manipulation of prey density that was originally conducted prior to the invasion using the same study sites. A controlled field experiment was conducted at two reefs near Lee Stocking Island, Bahamas, inhabited by 16 local populations of fairy basslet: eight with artificially enhanced recruitment versus eight with natural recruitment. Ledges were paired by habitat structure and one ledge from each pair was randomly assigned to receive artificially increased density of new basslet recruits, with the other in each pair left as a control.

Methods & Sampling

Dataset acquisition description

Using the same methods as Webster (2003), the investigators artificially enhanced basslet recruitment by capturing new settlers (<2 cm total length) with dip nets and transferring them to new populations far from their natal reefs. Censuses commenced 24 hours after recruit manipulationsand continued weekly for two months. At the end of the eight week study period, the investigators calculated net per capita loss (the proportional change in abundance from the beginning to the end of the experiment) for each population.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing Notes:
- Modified parameter names to conform with BCO-DMO naming conventions.
- Added lat and lon for each site from the metadata provided.
- Added species name, based on species code, from the species list.
- Replaced blanks with 'nd' in length and hunting columns.
- Replaced blanks with 'none' in species_code and species columns.
- Replaced 'N' and 'Y' with "No" and "Yes" in the hunting column.
- 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
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
lat	Latitude of the specific reef location.	decimal degrees	lat
lon	Longitude of the specific reef location.	decimal degrees	lon
date	Date of the reef census in mm/dd/YYYY format.	unitless	date
survey	Weekly survey 1-10.	dimensionless	no_bcodmo_term
ledge_tag	Two-digit numeral corresponding to ear tag ledge marker.	dimensionless	Site_ID
species	Name of the species.	text	species
species_code	Four-letter species code.	code	taxon_code
length	Length (in centimeters).	cm	fish_len
hunting	Indicates whether predator was actively hunting as indicated by typical hunting behavior.	Yes/No	no_bcodmo_term

Database

Contribute Data

Dataset: predator surveys LSI
Deployment: LSI_Reef_Surveys_09-12

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: predator surveys LSIDeployment: LSI_Reef_Surveys_09-12

Dataset acquisition description

Dataset Processing Description

Dataset: predator surveys LSI
Deployment: LSI_Reef_Surveys_09-12