Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis
Lipid and fatty acid (FA) composition and selected oxidative stress parameters of freshwater clams (Dipolodon chilensis), from a sewage-polluted (SMA) and a clean site, were compared. Trophic markers FA were analyzed in clams and sediment. Saturated FA (SAFA), and bacteria and sewage markers were ab...
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2013
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0025326X_v_n_p_Rocchetta http://hdl.handle.net/20.500.12110/paper_0025326X_v_n_p_Rocchetta |
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paper:paper_0025326X_v_n_p_Rocchetta2023-06-08T14:53:08Z Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis Rocchetta, Iara Ríos de Molina, María del Carmen Luquet, Carlos Marcelo Domestic effluents Fatty acid markers Freshwater bivalve Lipofuscins Oxidative stress Pollution Lipid and fatty acid (FA) composition and selected oxidative stress parameters of freshwater clams (Dipolodon chilensis), from a sewage-polluted (SMA) and a clean site, were compared. Trophic markers FA were analyzed in clams and sediment. Saturated FA (SAFA), and bacteria and sewage markers were abundant in SMA sediments, while diatom markers were 50% lower. Proportions of SAFA, branched FA, 20:5n - 3 (EPA) and 22:6n - 3 (DHA) were higher in SMA clams. Chronic exposure of D. chilensis to increasing eutrophication affected its lipid and FA composition. The increase in EPA and DHA proportions could be an adaptive response, which increases stress resistance but could also lead to higher susceptibility to lipid peroxidation TBARS, lipofuscins (20-fold) and GSH concentrations were higher in SMA clams. FA markers indicated terrestrial plant detritus and bacteria are important items in D. chilensis diet. Anthropogenic input in their food could be traced using specific FA as trophic markers. © 2013 Elsevier Ltd. All rights reserved. Fil:Rocchetta, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ríos de Molina, M.d.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Luquet, C.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0025326X_v_n_p_Rocchetta http://hdl.handle.net/20.500.12110/paper_0025326X_v_n_p_Rocchetta |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Domestic effluents Fatty acid markers Freshwater bivalve Lipofuscins Oxidative stress Pollution |
| spellingShingle |
Domestic effluents Fatty acid markers Freshwater bivalve Lipofuscins Oxidative stress Pollution Rocchetta, Iara Ríos de Molina, María del Carmen Luquet, Carlos Marcelo Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis |
| topic_facet |
Domestic effluents Fatty acid markers Freshwater bivalve Lipofuscins Oxidative stress Pollution |
| description |
Lipid and fatty acid (FA) composition and selected oxidative stress parameters of freshwater clams (Dipolodon chilensis), from a sewage-polluted (SMA) and a clean site, were compared. Trophic markers FA were analyzed in clams and sediment. Saturated FA (SAFA), and bacteria and sewage markers were abundant in SMA sediments, while diatom markers were 50% lower. Proportions of SAFA, branched FA, 20:5n - 3 (EPA) and 22:6n - 3 (DHA) were higher in SMA clams. Chronic exposure of D. chilensis to increasing eutrophication affected its lipid and FA composition. The increase in EPA and DHA proportions could be an adaptive response, which increases stress resistance but could also lead to higher susceptibility to lipid peroxidation TBARS, lipofuscins (20-fold) and GSH concentrations were higher in SMA clams. FA markers indicated terrestrial plant detritus and bacteria are important items in D. chilensis diet. Anthropogenic input in their food could be traced using specific FA as trophic markers. © 2013 Elsevier Ltd. All rights reserved. |
| author |
Rocchetta, Iara Ríos de Molina, María del Carmen Luquet, Carlos Marcelo |
| author_facet |
Rocchetta, Iara Ríos de Molina, María del Carmen Luquet, Carlos Marcelo |
| author_sort |
Rocchetta, Iara |
| title |
Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis |
| title_short |
Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis |
| title_full |
Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis |
| title_fullStr |
Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis |
| title_full_unstemmed |
Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis |
| title_sort |
effects of sewage discharges on lipid and fatty acid composition of the patagonian bivalve diplodon chilensis |
| publishDate |
2013 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0025326X_v_n_p_Rocchetta http://hdl.handle.net/20.500.12110/paper_0025326X_v_n_p_Rocchetta |
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1768544354355380224 |