The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus

Detalhes bibliográficos
Autor(a) principal: Chícharo, Luís
Data de Publicação: 1995
Outros Autores: Teodosio, Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Texto Completo: http://hdl.handle.net/10400.1/2481
Resumo: Condition indices have been widely used to assess how healthy individuals are under certain circumstances. It has been shown that the RNA/DNA ratio is a good indicator of the nutritional condition of severa1 marine organisms. A very sensitive fluorometric method for RNA/DNA quantification (Clemmesen, 1990) was applied to fed and starved post-larvae laboratory-reared clam, Ruditapes decussatus. The presented study shows that the RNA/DNA ratio is a useful indicator of nutritional stress for bivalve spat. The decrease in RNA/DNA ratio recorded here, under starved conditions was lower than in similar experiments on fish. A lower metabolic rate in clams may result in a slower response with respect to RNA/DNA ratios than that observed in vertebrates.
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spelling The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatusBivalvesNutritional conditionRNADNA ratiosRuditapes decussatusRNA-DNA ratiosCondition indices have been widely used to assess how healthy individuals are under certain circumstances. It has been shown that the RNA/DNA ratio is a good indicator of the nutritional condition of severa1 marine organisms. A very sensitive fluorometric method for RNA/DNA quantification (Clemmesen, 1990) was applied to fed and starved post-larvae laboratory-reared clam, Ruditapes decussatus. The presented study shows that the RNA/DNA ratio is a useful indicator of nutritional stress for bivalve spat. The decrease in RNA/DNA ratio recorded here, under starved conditions was lower than in similar experiments on fish. A lower metabolic rate in clams may result in a slower response with respect to RNA/DNA ratios than that observed in vertebrates.SapientiaChícharo, LuísTeodosio, Maria2013-02-26T15:29:03Z19952013-02-19T16:43:41Z1995-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/2481eng0214-8358AUT: MCH00377;info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-02-18T17:33:16Zoai:sapientia.ualg.pt:10400.1/2481Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T20:26:37.633929Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus
title The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus
spellingShingle The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus
Chícharo, Luís
Bivalves
Nutritional condition
RNA
DNA ratios
Ruditapes decussatus
RNA-DNA ratios
title_short The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus
title_full The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus
title_fullStr The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus
title_full_unstemmed The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus
title_sort The DNA/RNA ratio as a useful indicator of the nutritional condition in juveniles of Ruditapes decussatus
author Chícharo, Luís
author_facet Chícharo, Luís
Teodosio, Maria
author_role author
author2 Teodosio, Maria
author2_role author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Chícharo, Luís
Teodosio, Maria
dc.subject.por.fl_str_mv Bivalves
Nutritional condition
RNA
DNA ratios
Ruditapes decussatus
RNA-DNA ratios
topic Bivalves
Nutritional condition
RNA
DNA ratios
Ruditapes decussatus
RNA-DNA ratios
description Condition indices have been widely used to assess how healthy individuals are under certain circumstances. It has been shown that the RNA/DNA ratio is a good indicator of the nutritional condition of severa1 marine organisms. A very sensitive fluorometric method for RNA/DNA quantification (Clemmesen, 1990) was applied to fed and starved post-larvae laboratory-reared clam, Ruditapes decussatus. The presented study shows that the RNA/DNA ratio is a useful indicator of nutritional stress for bivalve spat. The decrease in RNA/DNA ratio recorded here, under starved conditions was lower than in similar experiments on fish. A lower metabolic rate in clams may result in a slower response with respect to RNA/DNA ratios than that observed in vertebrates.
publishDate 1995
dc.date.none.fl_str_mv 1995
1995-01-01T00:00:00Z
2013-02-26T15:29:03Z
2013-02-19T16:43:41Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/2481
url http://hdl.handle.net/10400.1/2481
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0214-8358
AUT: MCH00377;
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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