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dc.contributor.author
Meretta, Pablo Ezequiel  
dc.contributor.author
Farias, Nahuel Emiliano  
dc.contributor.author
Cledón, Maximiliano  
dc.contributor.author
Ventura, Carlos Renato Rezende  
dc.date.available
2018-09-24T17:45:31Z  
dc.date.issued
2016-12  
dc.identifier.citation
Meretta, Pablo Ezequiel; Farias, Nahuel Emiliano; Cledón, Maximiliano; Ventura, Carlos Renato Rezende; Growth pattern and changes in abundance of the endangered bat star Asterina stellifera; Wiley Blackwell Publishing, Inc; Marine Ecology-pubblicazioni Della Stazione Zoologica Di Napoli I; 37; 6; 12-2016; 1423-1433  
dc.identifier.issn
0173-9565  
dc.identifier.uri
http://hdl.handle.net/11336/60763  
dc.description.abstract
The sea star Asterina stellifera has declined during the last decade and is currently abundant only in the southern limit of its former range. We surveyed this population over 5 years to model individual growth and explore the relationship of changes in local abundance with variation in environmental factors and the reproductive status of individuals. Our results show that A. stellifera is a species with slow growth and a relatively long lifespan. Contrary to expectations for temperate species, growth rates were fairly constant through the year and therefore models including seasonal oscillations were inappropriate. The abundance of this species increased significantly from early spring to early summer, likely due to augmented activity and small-scale aggregation during the reproductive season that affected our estimates of abundance. No significant recruitment occurred during the 5 years studied. The lack of recruitment during long periods and the slow individual growth rates make A. stellifera particularly vulnerable to local extinction. This study was performed prior to the arrival in the study area of the invasive kelp Undaria pinnatifida and side-gilled sea slug Pleurobranchaea maculata, species that threaten the community structure where A. stellifera lives. Therefore, the information reported here will be essential to assessing the impacts of these exotic species on this sea star population.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Wiley Blackwell Publishing, Inc  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Asteroidea  
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Growth Modeling  
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Population Dynamics  
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Subtidal Habitat  
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Threatened Species  
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Otras Ciencias Biológicas  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Growth pattern and changes in abundance of the endangered bat star Asterina stellifera  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-08-30T15:47:48Z  
dc.journal.volume
37  
dc.journal.number
6  
dc.journal.pagination
1423-1433  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Meretta, Pablo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina  
dc.description.fil
Fil: Farias, Nahuel Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina  
dc.description.fil
Fil: Cledón, Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina  
dc.description.fil
Fil: Ventura, Carlos Renato Rezende. Universidade Federal do Rio de Janeiro; Brasil  
dc.journal.title
Marine Ecology-pubblicazioni Della Stazione Zoologica Di Napoli I  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1111/maec.12359  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/maec.12359