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During the summer of 2012, a field experiment was conducted on 14 isolated patch reefs near the Cape Eleuthera Institute, Eleuthera, Bahamas. Reefs were paired into blocks by location, size, depth, and vertical relief so that reefs in each block demonstrated similar environmental characteristics. Reefs were then randomly assigned to one of two lionfish treatments:\u00a0 low lionfish reefs (where divers regularly removed lionfish), and high lionfish reefs\u00a0 (where lionfish were added to maintain differential lionfish densities. At each reef, the investigator selected two isolated populations of fairy basslet on small ledges sufficiently separated from each other and from other suitable basslet habitat to inhibit emigration or immigration. Populations were then randomly assigned to either receive artificially increased recruitment or remain unmanipulated. Following the establishment of treatments, the investigator returned to census each population after two days, four days and weekly thereafter, with a final census after four weeks. During each census, the investigator recorded the size of each basslet (adult and juvenile), the total population size, any predators within 2-m of the target basslet ledge, and whether those predators where actively hunting among the experimental basslet populations.<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/ocean-data.org\/schema\/hasBriefDescription":[{"@value":"Size of predators observed during dedicated reef predator searches at Eleuthera, Bahamas.","@language":"en-US"}],"http:\/\/purl.org\/dc\/terms\/description":[{"@value":"
Counts and sizes of fish observed during dedicated reef predator surveys at Eleuthera, Bahamas.<\/p>\n
To rigorously test whether and how lionfish have altered prey density-dependent dynamics, a manipulation was conducted of both basslet and lionfish densities in a cross-factored design, such that differences in patterns of mortality between treatments could be attributable to lionfish predation alone. Because density-dependent basslet mortality was attributed to predators aggregating preferentially near high prey concentrations, predatory behavior of both native and invasive predators was also examined in order to determine whether differences in any aggregative response could explain different patterns of prey mortality.<\/p>\n
Related Datasets from sub-project \"Lionfish alter density dependence in fairy basslet\":
\nfairy basslet baseline density
\nfairy basslet census Eleuthera<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/www.w3.org\/2000\/01\/rdf-schema#label":[{"@value":"predator surveys Eleuthera","@type":"xsd:string"}],"http:\/\/ocean-data.org\/schema\/hasProcessingDescription":[{"@value":"
BCO-DMO Processing Notes:
\n- Added lat and lon for each site from the metadata provided.
\n- Converted lat and lon from degrees and decimal minutes to decimal degrees.
\n- Modified parameter names to conform with BCO-DMO naming conventions.
\n- Added the species column containing species names, based on species code and the metadata provided.
\n- 28-Dec-2017: removed embargo from dataset.<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/purl.org\/dc\/terms\/identifier":[{"@value":"3923","@type":"xsd:int"}],"http:\/\/purl.org\/dc\/terms\/title":[{"@value":"predator surveys Eleuthera"}],"http:\/\/purl.org\/dc\/terms\/date":[{"@value":"2013-04-24T16:49:57-04:00","@type":"xsd:dateTime"}],"http:\/\/purl.org\/dc\/terms\/created":[{"@value":"2013-04-24T16:49:57-04:00","@type":"xsd:dateTime"}],"http:\/\/purl.org\/dc\/terms\/modified":[{"@value":"2023-07-07T16:10:26-04:00","@type":"xsd:dateTime"}],"http:\/\/rdfs.org\/ns\/void#inDataset":[{"@id":"http:\/\/www.bco-dmo.org\/"}],"http:\/\/ocean-data.org\/schema\/namedGraph":[{"@value":"urn:bcodmo:dataset:3923","@type":"xsd:token"}],"http:\/\/ocean-data.org\/schema\/osprey_page":[{"@id":"https:\/\/www.bco-dmo.org\/dataset\/3923"}],"http:\/\/ocean-data.org\/schema\/identifier":[{"@value":"_:Identifier3923"}],"http:\/\/ocean-data.org\/schema\/datasetTitle":[{"@value":"Size of predators observed during dedicated reef predator searches at Eleuthera, Bahamas in 2012 (Lionfish Invasion project)","@language":"en-US"}],"http:\/\/ocean-data.org\/schema\/abstract":[{"@value":"Size of predators observed during dedicated reef predator searches at Eleuthera, Bahamas in 2012.","@language":"en-US"}],"http:\/\/purl.org\/dc\/terms\/rights":[{"@id":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"http:\/\/ocean-data.org\/schema\/deprecated":[{"@value":"false","@type":"xsd:boolean"}],"http:\/\/ocean-data.org\/schema\/temporalExtent":[{"@value":"_:temporalExtent3923"}],"http:\/\/ocean-data.org\/schema\/spatialCoverage":[{"@value":"_:spatialCoverage3923"}],"http:\/\/purl.org\/dc\/terms\/bibliographicCitation":[{"@value":"Hixon, M., Ingeman, K. 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