Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas

Autores
Farias, Nahuel Emiliano; Meretta, Pablo Ezequiel; Cledón, Maximiliano
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
During four years we surveyed the southernmost population of the sea star Asterina stellifera, which has been declared endangered in the central and northern parts of its distribution, and studied their feeding ecology by in situ observations and a short-term manipulative experiment. Contrary to our expectation we found abundant populations with densities up to 72 ind.m−2. The individuals grew slowly over four years with no replacement in the smaller size classes. In the short term, presence of A. stellifera negatively impacted the abundance of all macrobenthic species analyzed, including sessile and moving animals and algae.We demonstrate that this sea star feeds in a non-selective way on several items belonging to different trophic levels. In addition, it displays a microphagous feeding behavior, so its direct impact might extend to settlers, modifying the recruitment of benthic populations. Indirect effects were not detected, likely due to the experiments lasting for a very short period. As an abundant omnivore, A. stellifera is likely affecting the stability of trophic webs of which they are part.
Fil: Farias, Nahuel Emiliano. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
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 Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
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 Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Materia
Omnivory
Asteroidea
Hard bottom
Short term predatory effect
South-western Atlantic
Subtidal habitat
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/273235
Acceder
id CONICETDig_48e60720a2430f547402c9c29191d8fc
oai_identifier_str oai:ri.conicet.gov.ar:11336/273235
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seasFarias, Nahuel EmilianoMeretta, Pablo EzequielCledón, MaximilianoOmnivoryAsteroideaHard bottomShort term predatory effectSouth-western AtlanticSubtidal habitathttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1During four years we surveyed the southernmost population of the sea star Asterina stellifera, which has been declared endangered in the central and northern parts of its distribution, and studied their feeding ecology by in situ observations and a short-term manipulative experiment. Contrary to our expectation we found abundant populations with densities up to 72 ind.m−2. The individuals grew slowly over four years with no replacement in the smaller size classes. In the short term, presence of A. stellifera negatively impacted the abundance of all macrobenthic species analyzed, including sessile and moving animals and algae.We demonstrate that this sea star feeds in a non-selective way on several items belonging to different trophic levels. In addition, it displays a microphagous feeding behavior, so its direct impact might extend to settlers, modifying the recruitment of benthic populations. Indirect effects were not detected, likely due to the experiments lasting for a very short period. As an abundant omnivore, A. stellifera is likely affecting the stability of trophic webs of which they are part.Fil: Farias, Nahuel Emiliano. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: 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 Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: 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 Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaElsevier Science2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/273235Farias, Nahuel Emiliano; Meretta, Pablo Ezequiel; Cledón, Maximiliano; Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas; Elsevier Science; Journal of Sea Research; 70; 5-2012; 14-221385-1101CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1385110112000172info:eu-repo/semantics/altIdentifier/doi/10.1016/j.seares.2012.02.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:15:44Zoai:ri.conicet.gov.ar:11336/273235instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:15:44.517CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas
title Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas
spellingShingle Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas
Farias, Nahuel Emiliano
Omnivory
Asteroidea
Hard bottom
Short term predatory effect
South-western Atlantic
Subtidal habitat
title_short Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas
title_full Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas
title_fullStr Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas
title_full_unstemmed Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas
title_sort Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas
dc.creator.none.fl_str_mv Farias, Nahuel Emiliano
Meretta, Pablo Ezequiel
Cledón, Maximiliano
author Farias, Nahuel Emiliano
author_facet Farias, Nahuel Emiliano
Meretta, Pablo Ezequiel
Cledón, Maximiliano
author_role author
author2 Meretta, Pablo Ezequiel
Cledón, Maximiliano
author2_role author
author
dc.subject.none.fl_str_mv Omnivory
Asteroidea
Hard bottom
Short term predatory effect
South-western Atlantic
Subtidal habitat
topic Omnivory
Asteroidea
Hard bottom
Short term predatory effect
South-western Atlantic
Subtidal habitat
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv During four years we surveyed the southernmost population of the sea star Asterina stellifera, which has been declared endangered in the central and northern parts of its distribution, and studied their feeding ecology by in situ observations and a short-term manipulative experiment. Contrary to our expectation we found abundant populations with densities up to 72 ind.m−2. The individuals grew slowly over four years with no replacement in the smaller size classes. In the short term, presence of A. stellifera negatively impacted the abundance of all macrobenthic species analyzed, including sessile and moving animals and algae.We demonstrate that this sea star feeds in a non-selective way on several items belonging to different trophic levels. In addition, it displays a microphagous feeding behavior, so its direct impact might extend to settlers, modifying the recruitment of benthic populations. Indirect effects were not detected, likely due to the experiments lasting for a very short period. As an abundant omnivore, A. stellifera is likely affecting the stability of trophic webs of which they are part.
Fil: Farias, Nahuel Emiliano. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología. Laboratorio de Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
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 Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
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 Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
description During four years we surveyed the southernmost population of the sea star Asterina stellifera, which has been declared endangered in the central and northern parts of its distribution, and studied their feeding ecology by in situ observations and a short-term manipulative experiment. Contrary to our expectation we found abundant populations with densities up to 72 ind.m−2. The individuals grew slowly over four years with no replacement in the smaller size classes. In the short term, presence of A. stellifera negatively impacted the abundance of all macrobenthic species analyzed, including sessile and moving animals and algae.We demonstrate that this sea star feeds in a non-selective way on several items belonging to different trophic levels. In addition, it displays a microphagous feeding behavior, so its direct impact might extend to settlers, modifying the recruitment of benthic populations. Indirect effects were not detected, likely due to the experiments lasting for a very short period. As an abundant omnivore, A. stellifera is likely affecting the stability of trophic webs of which they are part.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/273235
Farias, Nahuel Emiliano; Meretta, Pablo Ezequiel; Cledón, Maximiliano; Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas; Elsevier Science; Journal of Sea Research; 70; 5-2012; 14-22
1385-1101
CONICET Digital
CONICET
url http://hdl.handle.net/11336/273235
identifier_str_mv Farias, Nahuel Emiliano; Meretta, Pablo Ezequiel; Cledón, Maximiliano; Population structure and feeding ecology of the bat star Asterina stellifera (Möbius, 1859): Omnivory on subtidal rocky bottoms of temperate seas; Elsevier Science; Journal of Sea Research; 70; 5-2012; 14-22
1385-1101
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1385110112000172
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.seares.2012.02.002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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