Endocrine and metabolic responses of Anguilla anguilla L. caged in a freshwater-wetland (Pateira de Fermentelos - Portugal)
The present short-term in situ study was carried out in a freshwater – wetland – Pateira de Fermentelos – considered an enlargement of Cértima River, in the centre of Portugal. This ecosystem is an important fishing and recreation place, receiving effluents from different origins namely, electroplat...
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ftria:oai:ria.ua.pt:10773/13249 2023-05-15T13:26:58+02:00 Endocrine and metabolic responses of Anguilla anguilla L. caged in a freshwater-wetland (Pateira de Fermentelos - Portugal) Teles, M. Pacheco, M. Santos, M. A. 2007 http://hdl.handle.net/10773/13249 https://doi.org/10.1016/j.scitotenv.2006.10.033 eng eng Elsevier CESAM-UA FCT - SFRH/BD/6607/2001 0048-9697 http://hdl.handle.net/10773/13249 doi:10.1016/j.scitotenv.2006.10.033 restrictedAccess Anguilla anguilla Pateira de Fermentelos Biotransformation Endocrine function Genotoxicity article 2007 ftria https://doi.org/10.1016/j.scitotenv.2006.10.033 2022-05-25T18:33:44Z The present short-term in situ study was carried out in a freshwater – wetland – Pateira de Fermentelos – considered an enlargement of Cértima River, in the centre of Portugal. This ecosystem is an important fishing and recreation place, receiving effluents from different origins namely, electroplating industrial effluents containing heavy metals, domestic wastes, as well as pesticides and fertilizers resulting from agriculture activities. The aim of the present research work was to monitor the effects induced by the contaminants present in Pateira de Fermentelos water, using Anguilla anguilla L. (European eel) as a bioindicator. The eels were caged for 48 h at four Pateira de Fermentelos sites, differing in their distances to the main known pollution source (Cértima River): A (close to the lagoon entrance), B, C and D (the farthest from the Cértima River). A reference site was selected near the Cértima river spring. The following parameters were measured: liver ethoxyresorufin- O -deethylase (EROD) and alanine transaminase (ALT) activities, plasma levels of cortisol, 17 β -estradiol (E 2 ), thyroid-stimulating-hormone (TSH), free thyroxine (T4), free triiodothyronine (T3), as well as glucose and lactate. The erythrocytic nuclear abnormalities (ENA) frequency was also scored as a genotoxicity indicator. The results revealed increased plasma cortisol and glucose concentrations at all exposure sites, displaying a similar response pattern. Plasma T3 showed a significant decrease only at site A when compared to reference site, whereas plasma E 2 increased at sites B and D when compared to all the other sites, including reference site. The present results indicate the Pateira de Fermentelos water contamination, demonstrating the usefulness of the adopted strategy. Article in Journal/Newspaper Anguilla anguilla Repositório Institucional da Universidade de Aveiro (RIA) Science of The Total Environment 372 2-3 562 570 |
institution |
Open Polar |
collection |
Repositório Institucional da Universidade de Aveiro (RIA) |
op_collection_id |
ftria |
language |
English |
topic |
Anguilla anguilla Pateira de Fermentelos Biotransformation Endocrine function Genotoxicity |
spellingShingle |
Anguilla anguilla Pateira de Fermentelos Biotransformation Endocrine function Genotoxicity Teles, M. Pacheco, M. Santos, M. A. Endocrine and metabolic responses of Anguilla anguilla L. caged in a freshwater-wetland (Pateira de Fermentelos - Portugal) |
topic_facet |
Anguilla anguilla Pateira de Fermentelos Biotransformation Endocrine function Genotoxicity |
description |
The present short-term in situ study was carried out in a freshwater – wetland – Pateira de Fermentelos – considered an enlargement of Cértima River, in the centre of Portugal. This ecosystem is an important fishing and recreation place, receiving effluents from different origins namely, electroplating industrial effluents containing heavy metals, domestic wastes, as well as pesticides and fertilizers resulting from agriculture activities. The aim of the present research work was to monitor the effects induced by the contaminants present in Pateira de Fermentelos water, using Anguilla anguilla L. (European eel) as a bioindicator. The eels were caged for 48 h at four Pateira de Fermentelos sites, differing in their distances to the main known pollution source (Cértima River): A (close to the lagoon entrance), B, C and D (the farthest from the Cértima River). A reference site was selected near the Cértima river spring. The following parameters were measured: liver ethoxyresorufin- O -deethylase (EROD) and alanine transaminase (ALT) activities, plasma levels of cortisol, 17 β -estradiol (E 2 ), thyroid-stimulating-hormone (TSH), free thyroxine (T4), free triiodothyronine (T3), as well as glucose and lactate. The erythrocytic nuclear abnormalities (ENA) frequency was also scored as a genotoxicity indicator. The results revealed increased plasma cortisol and glucose concentrations at all exposure sites, displaying a similar response pattern. Plasma T3 showed a significant decrease only at site A when compared to reference site, whereas plasma E 2 increased at sites B and D when compared to all the other sites, including reference site. The present results indicate the Pateira de Fermentelos water contamination, demonstrating the usefulness of the adopted strategy. |
format |
Article in Journal/Newspaper |
author |
Teles, M. Pacheco, M. Santos, M. A. |
author_facet |
Teles, M. Pacheco, M. Santos, M. A. |
author_sort |
Teles, M. |
title |
Endocrine and metabolic responses of Anguilla anguilla L. caged in a freshwater-wetland (Pateira de Fermentelos - Portugal) |
title_short |
Endocrine and metabolic responses of Anguilla anguilla L. caged in a freshwater-wetland (Pateira de Fermentelos - Portugal) |
title_full |
Endocrine and metabolic responses of Anguilla anguilla L. caged in a freshwater-wetland (Pateira de Fermentelos - Portugal) |
title_fullStr |
Endocrine and metabolic responses of Anguilla anguilla L. caged in a freshwater-wetland (Pateira de Fermentelos - Portugal) |
title_full_unstemmed |
Endocrine and metabolic responses of Anguilla anguilla L. caged in a freshwater-wetland (Pateira de Fermentelos - Portugal) |
title_sort |
endocrine and metabolic responses of anguilla anguilla l. caged in a freshwater-wetland (pateira de fermentelos - portugal) |
publisher |
Elsevier |
publishDate |
2007 |
url |
http://hdl.handle.net/10773/13249 https://doi.org/10.1016/j.scitotenv.2006.10.033 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
CESAM-UA FCT - SFRH/BD/6607/2001 0048-9697 http://hdl.handle.net/10773/13249 doi:10.1016/j.scitotenv.2006.10.033 |
op_rights |
restrictedAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2006.10.033 |
container_title |
Science of The Total Environment |
container_volume |
372 |
container_issue |
2-3 |
container_start_page |
562 |
op_container_end_page |
570 |
_version_ |
1766395568596189184 |