An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/5355 https://doi.org/10.1897/05-266R.1 |
Resumo: | This study developed and evaluated a short-term sublethal in situ toxicity assay for estuarine sediment-overlying waters, with the crab Carcinus maenas (L.) based on postexposure feeding. It consisted of a 48-h in situ exposure period followed by a short postexposure feeding period (30 min). A precise method for quantifying feeding, using the Polychaeta Hediste (Nereis) diversicolor Müller as food source, was first developed. The sensitivity of the postexposure feeding response was verified by comparing it to that of lethality, upon cadmium exposure. The influence of environmental conditions prevailing during exposure (salinity, temperature, substrate, light regime, and food availability) on postexposure feeding was also addressed. The potential of this in situ assay was then investigated by deploying organisms at ten sites, located in reference and contaminated Portuguese estuaries. Organism recovery ranged between 90% and 100% and a significant postexposure feeding depression (16.3-72.7%) was observed at all contaminated sites relatively to references. |
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An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluationsIn situ assaySediment-overlying water toxicityPostexposure feedingEstuaryCarcinus maenasThis study developed and evaluated a short-term sublethal in situ toxicity assay for estuarine sediment-overlying waters, with the crab Carcinus maenas (L.) based on postexposure feeding. It consisted of a 48-h in situ exposure period followed by a short postexposure feeding period (30 min). A precise method for quantifying feeding, using the Polychaeta Hediste (Nereis) diversicolor Müller as food source, was first developed. The sensitivity of the postexposure feeding response was verified by comparing it to that of lethality, upon cadmium exposure. The influence of environmental conditions prevailing during exposure (salinity, temperature, substrate, light regime, and food availability) on postexposure feeding was also addressed. The potential of this in situ assay was then investigated by deploying organisms at ten sites, located in reference and contaminated Portuguese estuaries. Organism recovery ranged between 90% and 100% and a significant postexposure feeding depression (16.3-72.7%) was observed at all contaminated sites relatively to references.http://www.sciencedirect.com/science/article/B6VB5-4GJM3WP-1/1/25ffe8271cb177981ca98ef5429a2c582006info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleaplication/PDFhttp://hdl.handle.net/10316/5355http://hdl.handle.net/10316/5355https://doi.org/10.1897/05-266R.1engEnvironmental Pollution. 139:2 (2006) 318-329Moreira, Susana M.Moreira-Santos, MatildeGuilhermino, LúciaRibeiro, Ruiinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-11-06T17:00:24Zoai:estudogeral.uc.pt:10316/5355Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:55:27.473651Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations |
title |
An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations |
spellingShingle |
An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations Moreira, Susana M. In situ assay Sediment-overlying water toxicity Postexposure feeding Estuary Carcinus maenas |
title_short |
An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations |
title_full |
An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations |
title_fullStr |
An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations |
title_full_unstemmed |
An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations |
title_sort |
An in situ postexposure feeding assay with Carcinus maenas for estuarine sediment-overlying water toxicity evaluations |
author |
Moreira, Susana M. |
author_facet |
Moreira, Susana M. Moreira-Santos, Matilde Guilhermino, Lúcia Ribeiro, Rui |
author_role |
author |
author2 |
Moreira-Santos, Matilde Guilhermino, Lúcia Ribeiro, Rui |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Moreira, Susana M. Moreira-Santos, Matilde Guilhermino, Lúcia Ribeiro, Rui |
dc.subject.por.fl_str_mv |
In situ assay Sediment-overlying water toxicity Postexposure feeding Estuary Carcinus maenas |
topic |
In situ assay Sediment-overlying water toxicity Postexposure feeding Estuary Carcinus maenas |
description |
This study developed and evaluated a short-term sublethal in situ toxicity assay for estuarine sediment-overlying waters, with the crab Carcinus maenas (L.) based on postexposure feeding. It consisted of a 48-h in situ exposure period followed by a short postexposure feeding period (30 min). A precise method for quantifying feeding, using the Polychaeta Hediste (Nereis) diversicolor Müller as food source, was first developed. The sensitivity of the postexposure feeding response was verified by comparing it to that of lethality, upon cadmium exposure. The influence of environmental conditions prevailing during exposure (salinity, temperature, substrate, light regime, and food availability) on postexposure feeding was also addressed. The potential of this in situ assay was then investigated by deploying organisms at ten sites, located in reference and contaminated Portuguese estuaries. Organism recovery ranged between 90% and 100% and a significant postexposure feeding depression (16.3-72.7%) was observed at all contaminated sites relatively to references. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006 |
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/10316/5355 http://hdl.handle.net/10316/5355 https://doi.org/10.1897/05-266R.1 |
url |
http://hdl.handle.net/10316/5355 https://doi.org/10.1897/05-266R.1 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental Pollution. 139:2 (2006) 318-329 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
aplication/PDF |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133841688887296 |