INVESTIGADORES
COLAUTTI Dario Cesar
artículos
Título:
Detritivorous fish contamination in the Río de la Plata estuary: a critical accumulation pathway in the cycle of anthropogenic compounds.
Autor/es:
COLOMBO J. C.; BILOS C.; REMES LENICOV M.; COLAUTTI D. C.; LANDONI P.; BROCHU C.
Revista:
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
Editorial:
NRC Research Press
Referencias:
Lugar: Toronto; Año: 2000 vol. 57 p. 1139 - 1150
ISSN:
0706-652X
Resumen:
Abstract: Aliphatic hydrocarbons, chlorinated pesticides, polychlorinated biphenyls (PCBs), dioxins, furans, and trace
metals have been quantified in fishes collected at four stations in Río de la Plata to determine contaminant sources,
elucidate interstation and interspecies differences, and assess the health risks associated with fish consumption. Río de
la Plata fish present low trace metal concentrations and moderate to high levels of organic pollutants, particularly
aliphatic hydrocarbons and PCBs. The highest concentrations were recorded in Prochilodus lineatus, a dominant and
remarkably specialized fatty detritivore that feeds on contaminated organic-rich flocculent matter. Lower levels were
registered in Cyprinus carpio and especially in Mugil cephalus, reflecting different feeding preferences. A geographical
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
remarkably specialized fatty detritivore that feeds on contaminated organic-rich flocculent matter. Lower levels were
registered in Cyprinus carpio and especially in Mugil cephalus, reflecting different feeding preferences. A geographical
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
metals have been quantified in fishes collected at four stations in Río de la Plata to determine contaminant sources,
elucidate interstation and interspecies differences, and assess the health risks associated with fish consumption. Río de
la Plata fish present low trace metal concentrations and moderate to high levels of organic pollutants, particularly
aliphatic hydrocarbons and PCBs. The highest concentrations were recorded in Prochilodus lineatus, a dominant and
remarkably specialized fatty detritivore that feeds on contaminated organic-rich flocculent matter. Lower levels were
registered in Cyprinus carpio and especially in Mugil cephalus, reflecting different feeding preferences. A geographical
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
remarkably specialized fatty detritivore that feeds on contaminated organic-rich flocculent matter. Lower levels were
registered in Cyprinus carpio and especially in Mugil cephalus, reflecting different feeding preferences. A geographical
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
: Aliphatic hydrocarbons, chlorinated pesticides, polychlorinated biphenyls (PCBs), dioxins, furans, and trace
metals have been quantified in fishes collected at four stations in Río de la Plata to determine contaminant sources,
elucidate interstation and interspecies differences, and assess the health risks associated with fish consumption. Río de
la Plata fish present low trace metal concentrations and moderate to high levels of organic pollutants, particularly
aliphatic hydrocarbons and PCBs. The highest concentrations were recorded in Prochilodus lineatus, a dominant and
remarkably specialized fatty detritivore that feeds on contaminated organic-rich flocculent matter. Lower levels were
registered in Cyprinus carpio and especially in Mugil cephalus, reflecting different feeding preferences. A geographical
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
remarkably specialized fatty detritivore that feeds on contaminated organic-rich flocculent matter. Lower levels were
registered in Cyprinus carpio and especially in Mugil cephalus, reflecting different feeding preferences. A geographical
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
Prochilodus lineatus, a dominant and
remarkably specialized fatty detritivore that feeds on contaminated organic-rich flocculent matter. Lower levels were
registered in Cyprinus carpio and especially in Mugil cephalus, reflecting different feeding preferences. A geographical
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated Prochilodus
Cyprinus carpio and especially in Mugil cephalus, reflecting different feeding preferences. A geographical
pattern of higher contaminant concentrations close to the Buenos Aires urban center and lower levels in distant stations
was also observed. The multivariate analysis of contaminant signatures indicated that most contaminated ProchilodusProchilodus
had fresh petrogenic and PCB traces, similar to fossil fuels and Aroclor 12541260, whereas Mugil and fish from distant
sites presented a higher proportion of biogenic hydrocarbons and of more chlorinated PCBs. Toxicity equivalents
ranged from 11 to 39 pg·g fresh weight1 in Prochilodus, exceeding the guideline of 25 pg·g1 for human consumption,
with allowable consumption rates as low as 1 g fish·day1.
with allowable consumption rates as low as 1 g fish·day1.
sites presented a higher proportion of biogenic hydrocarbons and of more chlorinated PCBs. Toxicity equivalents
ranged from 11 to 39 pg·g fresh weight1 in Prochilodus, exceeding the guideline of 25 pg·g1 for human consumption,
with allowable consumption rates as low as 1 g fish·day1.
with allowable consumption rates as low as 1 g fish·day1.
Mugil and fish from distant
sites presented a higher proportion of biogenic hydrocarbons and of more chlorinated PCBs. Toxicity equivalents
ranged from 11 to 39 pg·g fresh weight1 in Prochilodus, exceeding the guideline of 25 pg·g1 for human consumption,
with allowable consumption rates as low as 1 g fish·day1.
with allowable consumption rates as low as 1 g fish·day1.
1 in Prochilodus, exceeding the guideline of 25 pg·g1 for human consumption,
with allowable consumption rates as low as 1 g fish·day1.1.