Long-term monitoring of a mercury contaminated estuary (Ria de Aveiro, Portugal): the effect of weather events and management in mercury transport

Coelho, J.P.; Pato, P.; Henriques, Bruno; Picado, Ana; Lillebø, Ana I.; Dias, João Miguel; Duarte, Armando C.; Pereira, Manuela; Pardal, Miguel Ângelo

doi:10.1002/hyp.9585

Cited by 31 publications

(7 citation statements)

References 43 publications

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“…Taking into consideration the average temperature of the sampling area during April (17-20 °C, IPMA, 2018) 17 °C was selected as control temperature. Considering annual range of average temperatures (13.4-22.9 °C) for M. galloprovincialis habitats in the Ria de Aveiro (Coelho et al, 2014;Velez et al, 2015a) and the fact that a 2-4ºC rise in water temperature is predicted in the current century (IPCC, 2014), the temperature of 22 °C was considered to realistically represent warming conditions.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

The effect of temperature on Triclosan and Lead exposed mussels

Pirone

Coppola

Pretti

et al. 2019

Comparative Biochemistry and Physiology Part B: Biochemistry an

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Interest on the effects of emerging contaminants over aquatic organisms has increased in the last years. Nonetheless, the toxic action of classical natural and anthropogenically-driven metals has also to be monitored, especially because they reflect real environmental situations. For that, in the present study we focused on the effects on the marine mussel Mytilus galloprovincialis of the personal care product Triclosan (TCS) and Lead (Pb), as toxic metal, under separate and co-exposure situations at environmentally relevant concentrations: TCS (1 µg/L) and Pb (50 µg/L). The consideration of an additional factor such as an increase in ambient temperature was also included to provide a forecasted scenario of climate change: from the ambient temperature at actual conditions (17ºC) to a predicted warming situation (22ºC). Water chemical characterization and some physical properties and bioaccumulation of TCS and Pb in mussels at the end of the experiment (28 days) was considered. The parameters followed up comprise the energy related system production (electron transport system) and glycogen and protein reserves. Antioxidant enzymatic defenses towards reactive oxygen species (ROS) and the consequences of ROS damage over endogenous lipids (LPO) and proteins (PC). Overall the results suggested only occasional/particular responses to chemical exposures at 17ºC whereas at 22ºC the detoxification machinery was set up and this prevented the occurrence of LPO. Nonetheless, PC formation occurred under Pb and TCS+Pb co-exposure at the highest temperature. Due to the complexity of the study: 4 chemical conditions, 2 temperatures and 10 biomarkers considered, a principal component ordination (PCO) analysis was included. The results of this integrative analysis confirmed a clear effect of the temperature, more responsiveness to drugs at 22ºC and in all likelihood due to Pb presence.

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Section: Accepted Manuscriptmentioning

confidence: 99%

The effect of temperature on Triclosan and Lead exposed mussels

Pirone

Coppola

Pretti

et al. 2019

Comparative Biochemistry and Physiology Part B: Biochemistry an

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“…The control temperature of 18 ± 1.0 ºC was chosen considering the average temperature of the sampling area during September (IPMA, 2017). To simulate warming conditions, temperature of 21 ºC, was selected taking in account the annual range of average temperatures (13.4-22.9 ºC) for M. galloprovincialis habitats in Ria de Aveiro (Coelho et al, 2014;Santos et Velez et al, 2015) and considering the projected global temperature change to the year 2100 (up to 4.0 ºC, IPCC, 2014). The temperature range tested was also selected considering previously published data on bivalves responses to warming conditions (Banni et al, 2014;Boukadida et al, 2016;Hu et al, 2015;Nardi et al, 2017;Velez et al, 2017).…”

Section: Sampling and Experimental Conditionsmentioning

confidence: 99%

Are the effects induced by increased temperature enhanced in Mytilus galloprovincialis submitted to air exposure?

Andrade

Marchi

Soares

et al. 2019

Science of The Total Environment

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Intertidal mussel species are frequently exposed to changes of environmental parameters related to tidal regimes that include a multitude of stressors that they must avoid or tolerate by developing adaptive strategies. In particular, besides air exposure during low tides, intertidal mussels are also subjected to warming and, consequently, to higher risk of desiccation. However, scarce information is available regarding the responses of mussels to tidal regimes, particularly in the presence of other stressors such as increased temperature. Investigating the impacts of such combination of conditions will allow to understand the possible impacts that both factors interaction may generate to these intertidal organisms. To this end, the present study evaluated the impacts of different temperatures (18 °C and 21 °C) on Mytilus galloprovincialis when continuously submersed or exposed to a tidal regime for 14 days. Results showed that in mussels exposed to increased temperature under submersion conditions, the stress induced was enough to activate mussels' antioxidant defenses (namely glutathione peroxidase, GPx), preventing oxidative damage (lipid peroxidation, LPO; protein carbonylation, PC). In mussels exposed to tides at control temperature, metabolic capacity increased (electron transport system activity, ETS), and GPx was induced, despite resulting in increased LPO levels. Moreover, the combination of tides and temperature increase led to a significant decrease of lipid (LIP) content, activation of antioxidant defenses (superoxide dismutase, SOD; GPx) and increase of oxidized glutathione (GSSG), despite these mechanisms were not sufficient to prevent increased cellular damage. Therefore, the combination of increased temperature and air exposure induced higher oxidative stress in mussels. These findings indicate that increasing global warming could be more impacting to intertidal organisms compared to organisms continuously submersed. Furthermore, our results indicate that air exposure can act as a confounding factor when assessing the impacts of different stressors in organisms living in coastal systems.

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“…Previous studies assessed the overall amount of water pollution delivery from sub-catchments (Cerqueira et al, 2008;Ferreira et al, 2010;Oliveira et al, 2012) and the Vouga catchment (e.g. Silva et al, 2002;Diogo et al, 2003;Rocha et al, 2011;Coelho et al, 2014;Roebeling et al, 2014) to the downstream Ria de Aveiro lagoon. The majority of these studies quantify water pollution deliveries without particular attention to pollutant sources, while only few studies assess sources of water pollution as well as measures for water quality improvement (e.g.…”

Section: Introductionmentioning

confidence: 98%