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dc.contributor.author
Liuzzi, Maria Gabriela
dc.contributor.author
López Gappa, Juan José
dc.contributor.author
Olivieri, Vanesa Daiana
dc.date.available
2018-05-30T20:21:28Z
dc.date.issued
2016-06
dc.identifier.citation
Liuzzi, Maria Gabriela; López Gappa, Juan José; Olivieri, Vanesa Daiana; The clam Neilonella sulculata in San Jorge Gulf (Argentina, Southwest Atlantic): spatial distribution pattern and inverse relationship between size and density; Taylor & Francis As; Marine Biology Research; 12; 6; 6-2016; 621-630
dc.identifier.issn
1745-1000
dc.identifier.uri
http://hdl.handle.net/11336/46733
dc.description.abstract
Neilonella sulculata is a dominant bivalve on muddy bottoms of the continental shelf and gulfs off Argentina (Southwest Atlantic). Two benthic surveys performed in 2007 and 2009 in San Jorge Gulf, a depositional area characterized by silt/clay sediments, gave us the opportunity to test whether the population of this clam displays a significant spatial structure and to analyse if there is an inverse relationship between size and density. Density, biomass and size?frequency distribution displayed significant spatial structure, being positively autocorrelated at the smallest spatial scales (c. 1.7?14/17 km). Biomass also showed spatial contagion at scales of 25?33 km. A substantial increase in density and biomass occurred between 2007 and 2009. Empty valves in the sediment showed that the maximum size attained by the species may exhibit considerable variation at relatively short temporal scales. Regardless of temporal changes in density and biomass, the spatial structure of these variables remained stable. In densely populated areas, shell size decreased with increasing density, suggesting a density-dependent control of growth. A clear north?south increase in density and biomass was detected, which might be related to a gradient in food availability caused by a thermohaline frontal system associated with wind-related upwelling.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis As
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Autocorrelation
dc.subject
Benthic Infauna
dc.subject
Biomass
dc.subject
Mantel Test
dc.subject
Moran'S I
dc.subject
Size Structure
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The clam Neilonella sulculata in San Jorge Gulf (Argentina, Southwest Atlantic): spatial distribution pattern and inverse relationship between size and density
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-30T15:32:03Z
dc.identifier.eissn
1745-1019
dc.journal.volume
12
dc.journal.number
6
dc.journal.pagination
621-630
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Liuzzi, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: López Gappa, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: Olivieri, Vanesa Daiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.journal.title
Marine Biology Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1080/17451000.2016.1174336
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/17451000.2016.1174336


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