Biochemical performance of native and introduced clam species living in sympatry: The role of elements accumulation and partitioning

Velez, Cátia; Leandro, Sérgio; Figueira, Etelvina; Soares, Amadeu M.V.M.; Freitas, Rosa

doi:10.1016/j.marenvres.2015.06.005

Cited by 22 publications

(17 citation statements)

References 77 publications

(134 reference statements)

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“…Similar results were found for R. decussatus (0.15-0.95 kg) and R. philippinarum (0.08-0.81 kg), collected from the Ria de Aveiro, Óbidos lagoon (Velez et al, 2015a(Velez et al, , 2015b and from the coast of China (Yang et al, 2013), to exceed the PTWI for As.…”

Section: Dietary Risk Assessmentsupporting

confidence: 81%

“…Both species are good bioindicators, presenting high capacity to accumulate metals and As concentrations from water and sediment and to reflect the impacts induced by these elements (Moschino et al, 2012;Velez et al, 2015b). However, although both species co-exist in the same areas (Bidegain et al, 2015;Velez et al, 2015aVelez et al, , 2015b, they may present different responses when exposed to the same contaminant, including As, Hg (Velez et al, 2016b), and Cd (Moraga et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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The impacts of As accumulation under different pH levels: Comparing Ruditapes decussatus and Ruditapes philippinarum biochemical performance

Velez

Figueira

Soares

et al. 2016

Environmental Research

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Marine bivalves have been used to assess environmental As contamination and the effects of seawater acidification when both factors are acting alone, but limited information is available regarding the impacts of both factors acting in combination. The aim of this study was to compare physiological (glycogen) and biochemical (lipid peroxidation, superoxide dismutase, catalase, glutathione-S-transferase and alkaline phosphatase) responses in both native (Ruditapes decussatus) and introduced (R. philippinarum) clams, when exposed to the combined effects of pH (7.8, control; 7.3) and As concentrations (0 and 4mg/L). The combined effect of As and pH on the health risks associated with clam consumption was also analyzed. Results revealed that both species were able to accumulate As under both pH levels, although higher As concentrations where observed under low pH. Thus, predicted pH decrease will potentiate health risks associated with the consumption of such species, since less amount of clams exposed to As is needed for an adult to exceed the provisional tolerable weekly intake (PTWI). Low pH, As exposure and the combination of both factors did not negatively affect the native species, since clams were able to maintain their physiological and biochemical performance among all conditions. On the other hand, R. philippinarum was negatively affected by As exposure at control pH (7.8), inducing biotransformation and antioxidant defense mechanisms against As toxicity. R. philippinarum exposed and non-exposed to As presented similar responses under low pH although at this condition the introduced species accumulated twice the amount of As than R. decussatus.

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Section: Dietary Risk Assessmentsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

The impacts of As accumulation under different pH levels: Comparing Ruditapes decussatus and Ruditapes philippinarum biochemical performance

Velez

Figueira

Soares

et al. 2016

Environmental Research

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“…In fact, biochemical markers, including oxidative stress markers, became popular tools for detecting early toxic effects in aquatic organisms caused by these inorganic elements (e.g. Monserrat et al, 2007;Matozzo et al, 2012;Moschino et al, 2012;Velez et al, 2015b). The comparison between biochemical performance obtained from the same species in different environments will allow to assess the toxic impacts induced by different pollution types and/or levels and the effectiveness of the biological responses to specific environmental conditions (Chandurvelan et al, 2015;Velez et al, 2016a).…”

Section: Introductionmentioning

confidence: 99%

Metals and As content in sediments and Manila clam Ruditapes philippinarum in the Tagus estuary (Portugal): Impacts and risk for human consumption

Chiesa

Chainho

Almeida

et al. 2018

Marine Pollution Bulletin

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The Manila clam is emerging as a relevant species for the Portuguese market. The present work was conducted in the Tagus estuary to evaluate 1) the metals and As content in the sediments of the Tagus estuary, especially on those areas subjected to Manila clam harvesting 2) the metals and As content in clams, and the risk associated with their consumption 3) the physiological and biochemical responses of the clam to metals and As contamination, and its possible role as a pollution bioindicator in the estuarine environment. The most contaminated sediments were identified nearby industrial areas, nevertheless clams collected in low contaminated areas showed high metals and As concentrations. The condition index, glycogen content, membrane oxidative damage, biotransformation enzymes and metallothioneins showed consistent responses to metals and As content in clams. Results emphasize the need for the development of a management plan for the species exploitation in the Tagus estuary.

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“…Total organic matter content (TOM) was determined according to Byers et al (1978), as corresponding to the percentage of weight loss in 1 g of dried sediment, after combustion at 450 °C during 5 h (Velez et al, 2015b).…”

Section: Sediment Grain Size Distribution and Organic Matter Contentmentioning

confidence: 99%

“…lower than 10%. As already described by Velez et al (2015b) the concentration of metal(loid)s in clams was expressed in mg per kg wet weight (w.w.), to compare with maximum permissible limits expressed in mg kg -1 w.w., but also in dry weight (d.w.) according to Ponsero et al (2009), to make comparisons with literature data and to allow the determination of the Biota-Sediment Accumulation Factor (BSAF).…”

Section: Metal(loid) Determination In Clamsmentioning

confidence: 99%

Biogeochemical dynamics and bioaccumulation processes in Manila clam: Implications for biodiversity and ecosystem services in the Ria de Aveiro Lagoon

Breda

Chiesa

Freitas

et al. 2018

Estuarine, Coastal and Shelf Science

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The present work was carried out in the Ria de Aveiro Lagoon (Portugal) to better understand the dynamics driving the bioaccumulation processes in edible bivalves, namely in the Manila clam Ruditapes philippinarum. For the first time, a holistic approach was applied, collecting data on sediment physico-chemical characteristics and its contamination, geochemical speciation and metal(loid) bioaccumulation in clams, from three exploited areas of the lagoon (Costa Nova, Torreira, Ílhavo). The Ria de Aveiro Lagoon is part of the Natura 2000 network, has the designation of Special Protection Area (SPA), contains Sites of Community Importance (SCI), it is protected by the EU Birds Directive (79/109/CEE) and includes a natural reserve in its northern part. Specifically concerning the metal(loid) occurrence, the monitoring and the identification of contaminated sites in protected areas are priorities, to improve the biodiversity conservation efforts and to ensure the correct management of natural resources. Results showed that multiple driving forces interacted together to determine site-specific impacts, resulting in different risks at local scale for the transferring of the metal(loid)s to the trophic chain. Hydrodynamics played a major role driving the occurrence of depositional or ablative sites, influencing the granulometric composition of sediments and their contamination; metal(loid) chemical forms were then determinated by multiple factors like pH, redox potential and organic matter content. The geochemical speciation data showed that the Ílhavo area should be considered the most dangerous in terms of clam consumption, since in case of environmental changes, possible conversion of the elements from the potentially bioavailable forms to the bioavailable ones can occur. Moreover, bioaccumulation processes in Manila clam were observed for Cd, Zn and especially As, the latter representing serious risk for consumer safety throughout clam consumption.

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Biochemical performance of native and introduced clam species living in sympatry: The role of elements accumulation and partitioning

Cited by 22 publications

References 77 publications

The impacts of As accumulation under different pH levels: Comparing Ruditapes decussatus and Ruditapes philippinarum biochemical performance

The impacts of As accumulation under different pH levels: Comparing Ruditapes decussatus and Ruditapes philippinarum biochemical performance

Metals and As content in sediments and Manila clam Ruditapes philippinarum in the Tagus estuary (Portugal): Impacts and risk for human consumption

Biogeochemical dynamics and bioaccumulation processes in Manila clam: Implications for biodiversity and ecosystem services in the Ria de Aveiro Lagoon

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