Bioaccumulation of anthropogenic contaminants by detritivorous fish in the Río de la Plata estuary: 2-Polychlorinated biphenyls

Colombo, Juan Carlos; Cappelletti, N.; Migoya, M.C.; Speranza, Eric Demian

doi:10.1016/j.chemosphere.2007.05.073

Cited by 41 publications

(38 citation statements)

References 25 publications

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“…The high pollutant concentrations in P. lineatus from Buenos Aires confirm the high degree of contamination of this fish whose pollutant levels are among the highest reported in the scientific literature (Colombo et al , 2007 a , b , 2011). This is due to the specific adaptations to detritus feeding of P. lineatus, which lead to an optimized ingestion and assimilation of organic carbon and associated persistent pollutants from urban or industrial discharges.…”

Section: Discussionsupporting

confidence: 67%

Migratory behaviour of a dominant detritivorous fish Prochilodus lineatus evaluated by multivariate biochemical and pollutant data

Speranza

Cappelletti

Migoya

et al. 2012

Journal of Fish Biology

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This paper studies the migration pathways and ranges of a dominant detritivorous fish Prochilodus lineatus along pollution gradients in the Río de la Plata basin using multivariate analysis of biochemical and pollutant data. Biochemical composition (water, ash, lipids, proteins, carbohydrates, neutral lipids classes and fatty acids), aliphatic hydrocarbons (ALI), polychlorinated biphenyls (PCB), linear alkylbenzenes (LAB) and organochlorine pesticides (OClP) were determined in muscle samples of P. lineatus collected in Metropolitan Buenos Aires, the lower Paraná River (Paraná: 200-1000 km from Buenos Aires) and the middle Paraná and Paraguay Rivers (North: 1000-1400 km north). Biochemical variables and pollutants exhibited large variability [Lipids 1.1-89.5% wet mass; ALI 1.4-413; LABs not detectable (n.d.)-115.2; PCBs n.d.-27.9; OClPs n.d.-11.8 µg g(-1) dry mass], due to the contrast of Buenos Aires with North fish. Fish from Buenos Aires were fatty (lipids 24.7 ± 12.3% wet mass), enriched in 18 carbon fatty acids and severely contaminated (ALI 152.4 ± 72.3; LABs 65.1 ± 26.4; PCBs 15.2 ± 6.8; OClPs 1.8 ± 1.9 µg g(-1) dry mass mean ±S.D.). In contrast, fish from North were lean (4.1 ± 3.1% wet mass), enriched in long chain (>20 carbons) polyunsaturated fatty acids, with average one to two orders of magnitude lower pollutant levels (ALI 41.2 ± 51.9; PCBs 2.2 ± 3.5; LABs 8.8 ± 21.1; OClPs 0.67 ± 0.75 µg g(-1) dry mass mean ±S.D.). Paraná showed intermediate values in all variables, denoting the mixing of different fish stocks. Based on principal component analysis, 14 outliers from 60 North and Paraná samples (representing 26 from 108 individual fish) were identified as pertaining to the Buenos Aires group with very similar lipid and pollutant levels. Data suggest that P. lineatus migrates a highly variable distance, exceeding 800-1000 km in multiple spatial and temporal overlapping ranges. Chemometric analysis of biochemical and pollutant data effectively discriminates fish according to the chemical signature acquired by detritus feeding in pristine and contaminated urban or industrial areas.

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Section: Discussionsupporting

confidence: 67%

Migratory behaviour of a dominant detritivorous fish Prochilodus lineatus evaluated by multivariate biochemical and pollutant data

Speranza

Cappelletti

Migoya

et al. 2012

Journal of Fish Biology

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“…Many substances have been widely recognised as endocrine-disrupting chemicals for aquatic wildlife such as human hormone steroids, synthetic hormones (e.g., diethylstilbestrol, used as a contraceptive), other pharmaceuticals, several pesticides, detergent surfactants, aromatic hydrocarbons, polychlorinated byphenols and many plasticizers (Tolar et al 2001;Ying et al 2002;Matozzo et al 2007). It has been reported that fishes collected from Berazategui presented high levels of organic contaminants such as aliphatic hydrocarbons (Colombo et al 2007a) and polychlorinated biphenyls (Colombo et al 2007b). …”

Section: Resultsmentioning

confidence: 98%

Trace metal levels in Prochilodus lineatus collected from the La Plata River, Argentina

Lombardi

Perí

Guerrero

2008

Environ Monit Assess

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Most of the industrial, urban and sewage discharges are released into the La Plata River, Argentina without any previous treatment. However, few works have investigated the extent of metal contamination. The aim of this study was to assess the levels of cadmium, copper, lead and zinc in liver and gills of adults Prochilodus lineatus collected from three sampling stations along the coast of the La Plata River: Berazategui, Berisso and Atalaya (from north to south). Samplings were performed during 2002 and 2004. Berazategui and Berisso were located nearby the main ducts that discharge the urban and domestic waste disposal from the cities of Buenos Aires and La Plata, respectively. The third station, Atalaya, was free of sewage discharges. Levels of cadmium and copper in liver were always higher than those found in gills. Instead, for lead and zinc, high levels were observed either in liver or gills, depending on the sampling station and the sampling period. In both tissues, the concentrations of metals did not differ significantly between male and female fish. In liver samples, the concentrations of cadmium, copper and zinc tended to increase from north to south. Instead, the levels of lead followed an opposite pattern. No clear tendencies were observed in gill samples. The data may be useful as reference levels of metal contaminants in P. lineatus, the most important fish species in the La Plata River system.

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“…The higher nutritional value of this anthropogenic detritus was also indicated by its higher carbohydrate and amino acid contents relative to Paraná samples (Speranza & Colombo, ). The abundance of easily assimilable lipids at Buenos Aires and the consequent increase of fat stores in P. lineatus facilitate the absorption of massive amounts of organic pollutants that are associated with settling particles in this area (Colombo et al ., ). This is supported by the 10 times higher PCB concentration, with a fresher signature (lower 6Cl:3‐4Cl) in Buenos Aires P. lineatus .…”

Section: Discussionmentioning

confidence: 97%

“…Prochilodus lineatus (Valenciennes 1837) has several morpho‐physiological adaptations to selectively feed on organic detritus (sucker‐like mouth, gillraker filtering grid, cardiac and muscularized pyloric stomach with pyloric caeca and intestinal mucosal folds; Bowen, ). Near the Buenos Aires sewer outfall, massive amounts of organic matter, hydrocarbons, polychlorinated biphenyls (PCB) and other persistent organic pollutants accumulate at the sediment surface and are efficiently assimilated by P. lineatus (Colombo et al ., ) resulting in significant biochemical alterations compared to P. lineatus from northern sites of the basin, i.e . increased body mass and an unusually high muscle lipid content (Speranza & Colombo, ).…”

Section: Introductionmentioning

confidence: 99%

Fatty acid alterations in the detritivorous Prochilodus lineatus promoted by opportunistic feeding on sewage discharges in the Río de la Plata estuary

Speranza

Colombo

Tatone

et al. 2016

Journal of Fish Biology

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Muscle fatty acid profiles and PCB contents of the detritivorous species Prochilodus lineatus and its diet (stomach contents, settling particles and sediments) were analysed from reference and polluted areas of the Paraná-Rio de la Plata basin, to evaluate the alterations produced by opportunistic feeding on sewage discharges. Overall muscle fatty acid composition was dominated by saturated and monounsaturated 16 and 18 carbon (18 C-FA) components with reduced long-chain polyunsaturated fatty acids (LC-PUFA). Compared to sediments, settling particles and stomach contents were enriched in lipids and had a similar fatty acid composition. Opportunistic feeding on sewage detritus at Buenos Aires resulted in enhanced PCB and triglyceride accumulation, with higher proportions of 18 C-FA and lower proportions of 16:1 and LC-PUFA compared to fish from northern pristine reaches of the basin. Mid-Paraná showed intermediate values reflecting mixing of the North stock with migrating Buenos Aires P. lineatus identified by their lipid and contaminant profile. According to multivariate analyses, this geographical variation of fatty acid composition was strongly influenced by PCB concentration. Prochilodus lineatus assimilates the energy subsidy of sewage inputs through enhanced lipogenesis with dominant 18 C-FA and significant amounts of valuable LC-PUFA. This lipid alteration facilitates the bioaccumulation of PCBs which in turn may reinforce the adipogenic effect of sewage feeding.

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Bioaccumulation of anthropogenic contaminants by detritivorous fish in the Río de la Plata estuary: 2-Polychlorinated biphenyls

Cited by 41 publications

References 25 publications

Migratory behaviour of a dominant detritivorous fish Prochilodus lineatus evaluated by multivariate biochemical and pollutant data

Migratory behaviour of a dominant detritivorous fish Prochilodus lineatus evaluated by multivariate biochemical and pollutant data

Trace metal levels in Prochilodus lineatus collected from the La Plata River, Argentina

Fatty acid alterations in the detritivorous Prochilodus lineatus promoted by opportunistic feeding on sewage discharges in the Río de la Plata estuary

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