Organotin levels in the Ria Formosa lagoon, Portugal

Coelho, Maria Rosário; Bebianno, Maria João; Langston, W.J.

doi:10.1002/aoc.313

Cited by 36 publications

(20 citation statements)

References 25 publications

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“…manly TBT) and polychlorinated byphenyls (PCBs) have been detected in M. galloprovincialis and R. decussatus as well as in water and sediments collected in the Lagoon (Table 1). The results of endocrine disruption and oxidative stress in this study reflect the results obtained in other studies on the presence of different contaminants in Ria Formosa waters, as well as the complex interactions between them (Coelho et al 2002, Bebianno and Serafim 2003, Barreira et al 2005, Díez et al 2005, Barreira et al 2007, Cravo et al 2009). The two determined biomarkers are not specific to a particular group of contaminants but could represent an integrated response to the impact of multiple toxic and/or environmental factors (Lafontaine et al 2000).…”

Section: Mytilus Galloprovincialissupporting

confidence: 89%

Interspecific variability of endocrine disruption and oxidative stress in two bivalve species from the Ria Formosa Lagoon (south coast of Portugal)

Pereira¹,

Gomes²,

Cardoso³

et al. 2013

Sci. Mar.

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SUMMARY: Estuaries are highly productive ecosystems that have been increasingly affected by anthropogenic activities. In this study, the presence of endocrine disrupting compounds (EDCs) and their relation to oxidative stress were assessed in two bivalve species (mussels Mytilus galloprovincialis and clams Ruditapes decussatus) from the Ria Formosa Lagoon (south Portugal). We applied the alkali-labile phosphate (ALP) assay to determine vitellogenin-like protein levels, and the lipid peroxidation (LPO) method to assess oxidative damage. Mussels and clams exhibited the same pattern of ALP concentrations, with no differences between genders and higher levels in winter. R. decussatus showed higher ALP values than M. galloprovincialis, possibly associated with a stronger responsiveness of clams to EDCs or due to the influence of the reproductive cycle. Mussels exhibited a more evident seasonal effect for LPO, indicating that these organisms are more influenced by seasonal fluctuations in the water column compared to the sediment-associated clams. Both species appear to be under the influence of EDC exposure (which could induce Vg-like protein synthesis) and oxidative stressors (leading to lipid peroxidation) in the Ria Formosa Lagoon, particularly in winter, reflecting the presence of different contaminants in Ria Formosa and environmental changes, as well as complex interactions between them.Keywords: Ria Formosa Lagoon, Mytilus galloprovincialis, Ruditapes decussatus, endocrine disruption, vitellogenin-like proteins, lipid peroxidation. RESUMEN: Variabilidad interespecífica de disruptores endocrinos y estrés oxidatiVo en dos especies de biValVos de la ría formosa (costa sur de portugal). -Los estuarios son ecosistemas altamente productivos afectados por actividades antropogénicas. En este trabajo, la presencia de compuestos disruptores endocrinos (EDCs) y su relación con estrés oxidativo se ha evaluado en los bivalvos Mytilus galloprovincialis y Ruditapes decussatus en la laguna Ría Formosa (Portugal). Se utilizó el ensayo de fosfatos lábil alcalinos (ALP) para determinar los niveles de proteína tipo-vitelogenina y el método de peroxidación lipídica (LPO) para evaluar los daños oxidativos. Ambas especies exhibieron el mismo patrón de concentración de ALP: no hubo diferencias entre sexos pero si niveles más altos en invierno. R. decussatus presentó valores mayores de ALP que M. galloprovincialis posiblemente asociados a una capacidad de respuesta más elevada a los EDCs o al estado del ciclo reproductor. Los mejillones, al no estar asociados al sedimento como las almejas, mostraron variaciones estacionales en las concentraciones de LPO, indicando mayor sensibilidad a fluctuaciones ambientales en la columna de agua. Ambas especies parecen estar influenciadas (principalmente en invierno) por EDCs (posiblemente induciendo la síntesis de proteína tipo-vitelogenina) y factores de estrés oxidativo (activando la peroxidación lipídica); lo que refleja la presencia de diferentes contaminantes en la Ría Formosa y los cambios a...

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Section: Mytilus Galloprovincialissupporting

confidence: 89%

Interspecific variability of endocrine disruption and oxidative stress in two bivalve species from the Ria Formosa Lagoon (south coast of Portugal)

Pereira¹,

Gomes²,

Cardoso³

et al. 2013

Sci. Mar.

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“…However, in this task, we faced some limitations as follows: (a) values of BTs from Diez et al (2005) had to be extrapolated from a graphical representation; (b) in Coelho et al (2002), a few different values for the same sample were presented in the text and in a graphical representation, being impossible to know which of them were accurate; (c) in Almeida et al (2007), explicit sampling sites at each studied area have not been reported. In addition, total absence of previous available data prevented any comparison for Cávado River and Ave River estuaries.…”

Section: Resultsmentioning

confidence: 99%

“…From 2001 to 2003, TBT and DBT have been analyzed in sediment samples of eight Portuguese estuaries (Almeida et al 2007). More localized works have been carried out at Tagus estuary in 1990 and 2000 (De Bettencourt et al 1999;Nogueira et al 2003), Ria Formosa in 1992/1993(Coelho et al 2002, and Ria de Aveiro in 2005 (Sousa et al 2007). In addition, indirect evidence of BT contamination of Portuguese sediments, obtained through imposex levels, has been reported for: Sado and Mira estuaries (sampling between 1993 and1998;Pessoa et al 2001), several sites in Portuguese coastwise (sampling in 2000;Barroso and Moreira 2002), Oporto coast (sampling in 1998; Santos et al 2004), and Ria de Aveiro (sampling between 2002Rato et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Butyltin levels in several Portuguese coastal areas

Carvalho

Rodrigues

Basto

et al. 2008

Environ Monit Assess

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This work aimed to report present levels (2007-2008 sampling) of tri- (TBT), di- (DBT), and monobutyltin (MBT) in surface sediments from 11 Portuguese coastal sites and discuss the evolution of BTs contamination in the last two decades. All the samples revealed quantifiable values of TBT, DBT, and MBT with total butyltin concentrations between 1 and 565 ng/g (of Sn in dry sediment). Maximum level of TBT, 66 ng/g, was observed in Sado estuary, at Lisnave site, in the proximity of a big shipyard. MBT decreased site by site by the same order as DBT and TBT did, but its concentrations were much higher in many cases, denoting that TBT contamination was much higher in the past. A comparison with the available previous data confirmed a marked decrease of TBT contamination all over the last years, indicating that the main sources of TBT in Portuguese coastwise stopped effectively.

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“…Trisubstituted OTC, including TBT and TPhT, are among the most hazardous pollutants to enter aquatic ecosystems (Hoch 2001 EC 2000). Although OTC were intensively investigated in the marine environment (Coelho et al 2002;Díez et al 2005;Godoi et al 2003;Gomez-Ariza et al 2001;Harino et al 1999;Milivojevič Nemanič et al 2002Ščančar et al 2007), they are a rare subject of research in river sediments (Bancon-Montigny et al 2004;ICPDR 2002;Lacorte et al 2006;Scrimshaw et al 2005).…”

mentioning

confidence: 99%

A complex investigation of the extent of pollution in sediments of the Sava River: part 2: persistent organic pollutants

Heath

Ščančar

Zuliani

et al. 2009

Environ Monit Assess

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Sediment pollution of the biggest Danube tributary, the Sava River, was investigated within the sixth framework European Union project "Sava River Basin: Sustainable Use, Management and Protection of Resources" (SARIB). The extent of pollution was estimated by determining the amount of inorganic and persistent organic pollutants in sediment samples at 20 selected sampling sites along the Sava River. For the purpose of clarity, the findings are presented and published separately (part I: selected elements and part II: persistent organic pollutants). This study presents an investigation into the presence of organic pollutants in the Sava River sediment. According to the Water Framework Directive, the following persistent organic pollutants were investigated: polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB), selected chlorinated pesticides and organotin compounds. The results reveal that PAHs were present in moderate concentrations (sum of 16 PAHs: up to 4,000 ng g(-1)) and their concentrations increased downstream. Concentrations of PCB were low (sum of seven indicator PCBs: below 4 ng g(-1)) and among the pesticides analyzed only p,p-dichlorodiphenyltrichloroethane was found in moderate concentrations at two sampling sites in Croatia (up to 3 ng g(-1)) and hexachlorobenzene was found in a high concentration in the city of Belgrade (91 ng g(-1)), although the use of these persistent pesticides has been banned for decades. Repeated sampling at the same location revealed point pollution near Belgrade. Among the organic pollutants surveyed, organotin compounds were not detected. Overall results reveal the presence of persistent organic pollutants in 20 of the Sava River sediments tested that is, in general, comparable or lower than the levels in the Danube River and other moderately polluted European rivers.

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Organotin levels in the Ria Formosa lagoon, Portugal

Cited by 36 publications

References 25 publications

Interspecific variability of endocrine disruption and oxidative stress in two bivalve species from the Ria Formosa Lagoon (south coast of Portugal)

Interspecific variability of endocrine disruption and oxidative stress in two bivalve species from the Ria Formosa Lagoon (south coast of Portugal)

Butyltin levels in several Portuguese coastal areas

A complex investigation of the extent of pollution in sediments of the Sava River: part 2: persistent organic pollutants

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