Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)

Autores
Tamburi, Nicolas Eduardo; Martín, Pablo Rafael
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Pomacea canaliculata is a freshwater snail native to South America that together with some congeners has invaded natural wetlands and paddy fields in several continents, especially in Southern Asia. The high variability in shape, color and thickness of Pomacea shells and the sexual dimorphism in many traits blurs the species limits and hampers taxonomic identification. Ecological characterization of habitat productivity based on shells was previously proposed for P. canaliculata but was never methodically explored. Using full siblings of P. canaliculata, we studied the effects of different chronic levels of food availability (from 100% to 20% of daily ingestion rate) on shell shape, somatic indices and sexual dimorphism at maturity. The eight specific morphometric and somatic indices investigated showed different combinations of the effects of food availability and sex: changes related to food availability but independent of sex (relative aperture width), sexual dimorphism independent of food availability (shell globosity and relative aperture expansion), and changes related to food availability and sex, without a noticeable interaction (organic density); a significant interaction that increases the intersexual differences when food availability increases was detected in some indices (relative operculum weight, overall shell density and relative shell investment). The organic density can be used as a condition index to indicate the actual trophic availability in the field, although it should be estimated separately for males and females. The relative aperture width and the overall shell density can be used as paleo-environmental indicators of productivity, as they can be measured on empty shells. The effect of water alkalinity should be taken into account should the latter be used.
Fil: Tamburi, Nicolas Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología; Argentina
Fil: Martín, Pablo Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología; Argentina
Materia
Freshwater Snail
Invasive
Organic Density
Shape
Shell
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:11336/79047
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)Tamburi, Nicolas EduardoMartín, Pablo RafaelFreshwater SnailInvasiveOrganic DensityShapeShellhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Pomacea canaliculata is a freshwater snail native to South America that together with some congeners has invaded natural wetlands and paddy fields in several continents, especially in Southern Asia. The high variability in shape, color and thickness of Pomacea shells and the sexual dimorphism in many traits blurs the species limits and hampers taxonomic identification. Ecological characterization of habitat productivity based on shells was previously proposed for P. canaliculata but was never methodically explored. Using full siblings of P. canaliculata, we studied the effects of different chronic levels of food availability (from 100% to 20% of daily ingestion rate) on shell shape, somatic indices and sexual dimorphism at maturity. The eight specific morphometric and somatic indices investigated showed different combinations of the effects of food availability and sex: changes related to food availability but independent of sex (relative aperture width), sexual dimorphism independent of food availability (shell globosity and relative aperture expansion), and changes related to food availability and sex, without a noticeable interaction (organic density); a significant interaction that increases the intersexual differences when food availability increases was detected in some indices (relative operculum weight, overall shell density and relative shell investment). The organic density can be used as a condition index to indicate the actual trophic availability in the field, although it should be estimated separately for males and females. The relative aperture width and the overall shell density can be used as paleo-environmental indicators of productivity, as they can be measured on empty shells. The effect of water alkalinity should be taken into account should the latter be used.Fil: Tamburi, Nicolas Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología; ArgentinaFil: Martín, Pablo Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología; ArgentinaInstitute of Malacology2012-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/79047Tamburi, Nicolas Eduardo; Martín, Pablo Rafael; Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae); Institute of Malacology; Malacologia; 55; 1; 9-2012; 33-410076-2997CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.4002/040.055.0103info:eu-repo/semantics/altIdentifier/doi/10.4002/040.055.0103info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:42Zoai:ri.conicet.gov.ar:11336/79047instacron: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:34982025-09-03 10:09:43.058CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)
title Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)
spellingShingle Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)
Tamburi, Nicolas Eduardo
Freshwater Snail
Invasive
Organic Density
Shape
Shell
title_short Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)
title_full Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)
title_fullStr Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)
title_full_unstemmed Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)
title_sort Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae)
dc.creator.none.fl_str_mv Tamburi, Nicolas Eduardo
Martín, Pablo Rafael
author Tamburi, Nicolas Eduardo
author_facet Tamburi, Nicolas Eduardo
Martín, Pablo Rafael
author_role author
author2 Martín, Pablo Rafael
author2_role author
dc.subject.none.fl_str_mv Freshwater Snail
Invasive
Organic Density
Shape
Shell
topic Freshwater Snail
Invasive
Organic Density
Shape
Shell
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Pomacea canaliculata is a freshwater snail native to South America that together with some congeners has invaded natural wetlands and paddy fields in several continents, especially in Southern Asia. The high variability in shape, color and thickness of Pomacea shells and the sexual dimorphism in many traits blurs the species limits and hampers taxonomic identification. Ecological characterization of habitat productivity based on shells was previously proposed for P. canaliculata but was never methodically explored. Using full siblings of P. canaliculata, we studied the effects of different chronic levels of food availability (from 100% to 20% of daily ingestion rate) on shell shape, somatic indices and sexual dimorphism at maturity. The eight specific morphometric and somatic indices investigated showed different combinations of the effects of food availability and sex: changes related to food availability but independent of sex (relative aperture width), sexual dimorphism independent of food availability (shell globosity and relative aperture expansion), and changes related to food availability and sex, without a noticeable interaction (organic density); a significant interaction that increases the intersexual differences when food availability increases was detected in some indices (relative operculum weight, overall shell density and relative shell investment). The organic density can be used as a condition index to indicate the actual trophic availability in the field, although it should be estimated separately for males and females. The relative aperture width and the overall shell density can be used as paleo-environmental indicators of productivity, as they can be measured on empty shells. The effect of water alkalinity should be taken into account should the latter be used.
Fil: Tamburi, Nicolas Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología; Argentina
Fil: Martín, Pablo Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Laboratorio de Ecología; Argentina
description Pomacea canaliculata is a freshwater snail native to South America that together with some congeners has invaded natural wetlands and paddy fields in several continents, especially in Southern Asia. The high variability in shape, color and thickness of Pomacea shells and the sexual dimorphism in many traits blurs the species limits and hampers taxonomic identification. Ecological characterization of habitat productivity based on shells was previously proposed for P. canaliculata but was never methodically explored. Using full siblings of P. canaliculata, we studied the effects of different chronic levels of food availability (from 100% to 20% of daily ingestion rate) on shell shape, somatic indices and sexual dimorphism at maturity. The eight specific morphometric and somatic indices investigated showed different combinations of the effects of food availability and sex: changes related to food availability but independent of sex (relative aperture width), sexual dimorphism independent of food availability (shell globosity and relative aperture expansion), and changes related to food availability and sex, without a noticeable interaction (organic density); a significant interaction that increases the intersexual differences when food availability increases was detected in some indices (relative operculum weight, overall shell density and relative shell investment). The organic density can be used as a condition index to indicate the actual trophic availability in the field, although it should be estimated separately for males and females. The relative aperture width and the overall shell density can be used as paleo-environmental indicators of productivity, as they can be measured on empty shells. The effect of water alkalinity should be taken into account should the latter be used.
publishDate 2012
dc.date.none.fl_str_mv 2012-09
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/11336/79047
Tamburi, Nicolas Eduardo; Martín, Pablo Rafael; Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae); Institute of Malacology; Malacologia; 55; 1; 9-2012; 33-41
0076-2997
CONICET Digital
CONICET
url http://hdl.handle.net/11336/79047
identifier_str_mv Tamburi, Nicolas Eduardo; Martín, Pablo Rafael; Effect of food availability on morphometric and somatic indices of the apple snail Pomacea Canaliculata (Caenogastropoda, ampullariidae); Institute of Malacology; Malacologia; 55; 1; 9-2012; 33-41
0076-2997
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.bioone.org/doi/abs/10.4002/040.055.0103
info:eu-repo/semantics/altIdentifier/doi/10.4002/040.055.0103
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
dc.publisher.none.fl_str_mv Institute of Malacology
publisher.none.fl_str_mv Institute of Malacology
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 13.13397

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