Artículo
Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis
Rocchetta, Iara
; Pasquevich, María Yanina
; Heras, Horacio
; Rios, Maria del Carmen
; Luquet, Carlos Marcelo
Fecha de publicación:
12/2013
Editorial:
Elsevier
Revista:
Marine Pollution Bulletin
ISSN:
0025-326X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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
Palabras clave:
Fatty Acids
,
Diplodon Chilensis
,
Lipids
,
Sewage Discharges
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INIBIOLP)
Articulos de INST.DE INVEST.BIOQUIMICAS DE LA PLATA
Articulos de INST.DE INVEST.BIOQUIMICAS DE LA PLATA
Articulos(INIBIOMA)
Articulos de INST. DE INVEST.EN BIODIVERSIDAD Y MEDIOAMBIENTE
Articulos de INST. DE INVEST.EN BIODIVERSIDAD Y MEDIOAMBIENTE
Articulos(IQUIBICEN)
Articulos de INSTITUTO DE QUIMICA BIOLOGICA DE LA FACULTAD DE CS. EXACTAS Y NATURALES
Articulos de INSTITUTO DE QUIMICA BIOLOGICA DE LA FACULTAD DE CS. EXACTAS Y NATURALES
Citación
Rocchetta, Iara; Pasquevich, María Yanina; Heras, Horacio; Rios, Maria del Carmen; Luquet, Carlos Marcelo; Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis; Elsevier; Marine Pollution Bulletin; 79; 1-2; 12-2013; 211-219
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