Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)

Autores
Romero, Virginia Virginia; Brezina, Soledad Silvana; Bremec, Claudia Silvia; Casadio, Silvio Alberto
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Romero, Virginia. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina
Fil: Brezina, Soledad. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Bremec, Claudia. Estación Costera Juan José Nágera, Instituto de Investigaciones Marinas y Costeras Consejo Nacional de Investigaciones Científicas y Técnicas / Universidad Nacional de Mar del Plata. Argentina.
Fil: Casadio, Silvio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
This work describes the composition and distribution of sclerobionts on the Miocene Patagonian oyster Ostrea alvarezii d'Orbigny and provides information about its paleoenvironment. The structure of sclerobiont assemblages and their preferential distribution on left/right valves (n=340) as well as their external/internal surfaces and areas was evaluated by means of multivariate analyses (nMDS, SIMPER), non-parametric tests for producing mean comparisons, and goodness of fit tests using coverage and abundance data. Sixteen ichnotaxa were recorded. Bivalves, polychaetes and bryozoans were the most representative encrusters. External surfaces, left valves and sediment-free areas were the most colonized. O. alvarezii beds are interpreted as within-habitat time-averaged assemblages. Oysters appear to have lived in small subtidal channels in a low energy tidal flat and closely related to the sediment-water interface, with the right valve resting on the substrate. Sclerobionts showed diverse behaviors, trophic levels and tiering. This suggests that sclerobiont assemblages on O. alvarezii had a complex structure with subdivision of resources, including a vertical colonization of valves by tracemakers at different levels of depth.
.
Materia
Ciencias Exactas y Naturales
Océano Atlántico Sudoccidental
Tortoniano
Patagonia
Organismos Incrustantes y Perforantes
Depósitos de Ostras
Ciencias Exactas y Naturales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/7536
Acceder
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network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)Romero, Virginia VirginiaBrezina, Soledad SilvanaBremec, Claudia SilviaCasadio, Silvio AlbertoCiencias Exactas y NaturalesOcéano Atlántico SudoccidentalTortonianoPatagoniaOrganismos Incrustantes y PerforantesDepósitos de OstrasCiencias Exactas y NaturalesFil: Romero, Virginia. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, ArgentinaFil: Brezina, Soledad. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Bremec, Claudia. Estación Costera Juan José Nágera, Instituto de Investigaciones Marinas y Costeras Consejo Nacional de Investigaciones Científicas y Técnicas / Universidad Nacional de Mar del Plata. Argentina.Fil: Casadio, Silvio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.This work describes the composition and distribution of sclerobionts on the Miocene Patagonian oyster Ostrea alvarezii d'Orbigny and provides information about its paleoenvironment. The structure of sclerobiont assemblages and their preferential distribution on left/right valves (n=340) as well as their external/internal surfaces and areas was evaluated by means of multivariate analyses (nMDS, SIMPER), non-parametric tests for producing mean comparisons, and goodness of fit tests using coverage and abundance data. Sixteen ichnotaxa were recorded. Bivalves, polychaetes and bryozoans were the most representative encrusters. External surfaces, left valves and sediment-free areas were the most colonized. O. alvarezii beds are interpreted as within-habitat time-averaged assemblages. Oysters appear to have lived in small subtidal channels in a low energy tidal flat and closely related to the sediment-water interface, with the right valve resting on the substrate. Sclerobionts showed diverse behaviors, trophic levels and tiering. This suggests that sclerobiont assemblages on O. alvarezii had a complex structure with subdivision of resources, including a vertical colonization of valves by tracemakers at different levels of depth..Asociación Paleontológica Argentina2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfRomero, M. V., Brezina, S. S., Bremec, C., & Casadío, S. (2017). Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina). Ameghiniana; 55 (2); 179-196.1851-8044https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/3081http://rid.unrn.edu.ar/handle/20.500.12049/7536enghttps://www.ameghiniana.org.ar/index.php/ameghiniana/index55 (2)Ameghinianainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-11-13T10:12:10Zoai:rid.unrn.edu.ar:20.500.12049/7536instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-11-13 10:12:11.115RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)
title Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)
spellingShingle Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)
Romero, Virginia Virginia
Ciencias Exactas y Naturales
Océano Atlántico Sudoccidental
Tortoniano
Patagonia
Organismos Incrustantes y Perforantes
Depósitos de Ostras
Ciencias Exactas y Naturales
title_short Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)
title_full Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)
title_fullStr Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)
title_full_unstemmed Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)
title_sort Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina)
dc.creator.none.fl_str_mv Romero, Virginia Virginia
Brezina, Soledad Silvana
Bremec, Claudia Silvia
Casadio, Silvio Alberto
author Romero, Virginia Virginia
author_facet Romero, Virginia Virginia
Brezina, Soledad Silvana
Bremec, Claudia Silvia
Casadio, Silvio Alberto
author_role author
author2 Brezina, Soledad Silvana
Bremec, Claudia Silvia
Casadio, Silvio Alberto
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas y Naturales
Océano Atlántico Sudoccidental
Tortoniano
Patagonia
Organismos Incrustantes y Perforantes
Depósitos de Ostras
Ciencias Exactas y Naturales
topic Ciencias Exactas y Naturales
Océano Atlántico Sudoccidental
Tortoniano
Patagonia
Organismos Incrustantes y Perforantes
Depósitos de Ostras
Ciencias Exactas y Naturales
dc.description.none.fl_txt_mv Fil: Romero, Virginia. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina
Fil: Brezina, Soledad. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Bremec, Claudia. Estación Costera Juan José Nágera, Instituto de Investigaciones Marinas y Costeras Consejo Nacional de Investigaciones Científicas y Técnicas / Universidad Nacional de Mar del Plata. Argentina.
Fil: Casadio, Silvio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
This work describes the composition and distribution of sclerobionts on the Miocene Patagonian oyster Ostrea alvarezii d'Orbigny and provides information about its paleoenvironment. The structure of sclerobiont assemblages and their preferential distribution on left/right valves (n=340) as well as their external/internal surfaces and areas was evaluated by means of multivariate analyses (nMDS, SIMPER), non-parametric tests for producing mean comparisons, and goodness of fit tests using coverage and abundance data. Sixteen ichnotaxa were recorded. Bivalves, polychaetes and bryozoans were the most representative encrusters. External surfaces, left valves and sediment-free areas were the most colonized. O. alvarezii beds are interpreted as within-habitat time-averaged assemblages. Oysters appear to have lived in small subtidal channels in a low energy tidal flat and closely related to the sediment-water interface, with the right valve resting on the substrate. Sclerobionts showed diverse behaviors, trophic levels and tiering. This suggests that sclerobiont assemblages on O. alvarezii had a complex structure with subdivision of resources, including a vertical colonization of valves by tracemakers at different levels of depth.
.
description Fil: Romero, Virginia. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina
publishDate 2017
dc.date.none.fl_str_mv 2017
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 Romero, M. V., Brezina, S. S., Bremec, C., & Casadío, S. (2017). Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina). Ameghiniana; 55 (2); 179-196.
1851-8044
https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/3081
http://rid.unrn.edu.ar/handle/20.500.12049/7536
identifier_str_mv Romero, M. V., Brezina, S. S., Bremec, C., & Casadío, S. (2017). Sclerobionts on Patagonian Oysters from the Puerto Madryn Formation (Early-Late Miocene, Argentina). Ameghiniana; 55 (2); 179-196.
1851-8044
url https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/3081
http://rid.unrn.edu.ar/handle/20.500.12049/7536
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.ameghiniana.org.ar/index.php/ameghiniana/index
55 (2)
Ameghiniana
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
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score 12.738264

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