Metal exposure and reproductive disorders in indigenous communities living along the Pilcomayo River, Bolivia

Stassen, M.; Preeker, N.L.; Ragas, A.M.J.; Ven, Max W.P.M. van de; Smolders, Alfons J. P.; Roeleveld, Nel

doi:10.1016/j.scitotenv.2012.03.072

Cited by 21 publications

(13 citation statements)

References 34 publications

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“…Other methodologies have been used to study migratory and biological aspects of the streaked prochilod, primarily tagging and recapture (Bonetto et al, 1981;Delfino, Baigun, 1985;Sverlij et al, 1993;Espinach Ros et al, 1998) although biochemical methods (Colombo et al, 2011;Speranza et al, 2012) and distribution studies (Bayley, 1973;Stassen et al, 2012) have also been conducted. These studies show brackish use in some specimens, but also suggested the presence of non-migratory fish, especially in the Uruguay River (Bonetto et al, 1981;Delfino, Baigun, 1985;Espinach Ros et al, 1998).…”

Section: Discussionmentioning

confidence: 99%

Migration and brackish environment use of Prochilodus lineatus (Characiformes: Prochilodontidae) inferred by Sr:Ca ratio transects of otolith

et al. 2017

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The streaked prochilod, Prochilodus lineatus, represents the most important fishery in the La Plata Basin (South America). Our objective was to analyze brackish environment use by the streaked prochilod captured from Paraná and Uruguay rivers. To accomplish this, lapillus otolith sections were analyzed for Sr:Ca with laser ablation-inductively coupled plasma-mass spectrometry (LA ICP-MS) to infer habitat use of fish. To the interpretation of transects, a threshold that represents the transition between freshwater and brackish environments was calculated using the Sr:Ca ratio of the otolith edge of specimens captured in the first section of the La Plata Estuary (salinity ≥ 0.5 PSU). The percentage of fish using the estuary was higher in the Paraná (37%) than the Uruguay River (5%). Change-point analysis showed that fish entered the estuary between 1 and 3 times throughout life at a wide range of ages (0-15 years). These incursions had no obvious periodicity. This information should be integrated into future management actions, which should also be specific to each area since migration patterns differ between the major rivers of the basin.Keywords: Connectivity, Freshwater resident, Laser ablation, River migration, Streaked prochilod.El sábalo, Prochilodus lineatus, representa la pesquería más importante en la Cuenca del Río de la Plata (Sudamérica). Nuestro objetivo fue analizar el uso del hábitat estuarino del sábalo proveniente de los ríos Uruguay y Paraná. Para esto, se analizó la relación Sr:Ca en secciones de otolitos lapilli por ablación láser acoplada a espectrometría de masas con fuente de plasma de acoplamiento inductivo (LA ICP-MS) para inferir el uso de hábitat. Para interpretar las transectas, un umbral que representa la transición entre los ambientes de agua dulce y estuarino, fue calculado usando la relación Sr:Ca del borde del otolito de especímenes capturados en la primera sección del estuario del Plata (salinidad ≥0.5 UPS). El porcentaje de peces que usaron el estuario fue más elevado para el Paraná (37%) en relación al Uruguay (5%). El análisis de cambio puntual mostro que los individuos ingresan al estuario entre 1 a 3 veces a lo largo de la vida en un amplio rango de edades (0-15 años). Las incursiones no mostraron una periodicidad notoria. Esta información debería integrarse a futuras acciones de manejo que deberían ser específicas para cada área considerando los patrones de migración que difieren entre los grandes ríos de la Cuenca.Palabras clave: Ablación laser, Agua dulce residente, Conectividad, Migración de rio, Sábalo.

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Section: Discussionmentioning

confidence: 99%

Migration and brackish environment use of Prochilodus lineatus (Characiformes: Prochilodontidae) inferred by Sr:Ca ratio transects of otolith

et al. 2017

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“…Bolivia has traditionally been a mining country (Stassen et al 2012). Over the years large and medium scale mining activities have been intensively developed across the country mostly for gold and zinc extractions.…”

Section: Mining and Water Pollutionmentioning

confidence: 99%

“…Of particular concern is mercury bioaccumulation in aquatic food webs affecting people who have a regular fish diet (Maurice-Bourgoin et al 1999, Maurice-Bourgoin et al 2000Pouilly et al 2013. Laffont et al (2009) and Stassen et al (2012) have reported reproductive and developmental disorders in native groups in Bolivia due to overexposure of mercury present in fish. The lack of specific regulation for mining activities, has led to increased aurifer production mainly through small scale mining that is currently increasing in extent within the Amazon river basin.…”

Section: Mining and Water Pollutionmentioning

confidence: 99%

Floodplain fish communities in river systems in Bolivia: Current knowledge and addressing future research challenges

Puelles

2016

Ecología en Bolivia

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“…In one study, detrimental reproductive and developmental effects were reported in residents exposed to mining effluents in communities more than 500 km downstream of the mining regions of Potosí because of usage of the Pilcomayo river. 14 In contrast, another study of pregnant women and children reported no developmental effects on the basis of maternal Pb concentrations among children born at hospitals within 2 km of the San Jose Mine near Oruro, which is 230 km northwest of Potosí. 15 Archer et al 16 found that As was elevated for nonoccupationally exposed subjects in collected human hair and urine samples just downstream of the mines of Potosí.…”

mentioning

confidence: 95%

Possible Health Effects of Living in Proximity to Mining Sites Near Potosí, Bolivia

Farag

Das

Strosnider

et al. 2015

Journal of Occupational &Amp; Environmental Medicine

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Metal exposure and reproductive disorders in indigenous communities living along the Pilcomayo River, Bolivia

Cited by 21 publications

References 34 publications

Migration and brackish environment use of Prochilodus lineatus (Characiformes: Prochilodontidae) inferred by Sr:Ca ratio transects of otolith

Migration and brackish environment use of Prochilodus lineatus (Characiformes: Prochilodontidae) inferred by Sr:Ca ratio transects of otolith

Floodplain fish communities in river systems in Bolivia: Current knowledge and addressing future research challenges

Possible Health Effects of Living in Proximity to Mining Sites Near Potosí, Bolivia

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