Effects of temperature on scope for growth and accumulation of Cd, Co, Cu and Pb by the marine bivalve Mytilus edulis

Mubiana, Valentine K.; Blust, Ronny

doi:10.1016/j.marenvres.2006.08.005

Cited by 162 publications

(83 citation statements)

References 34 publications

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“…The water temperature and salinity at each of the respective sites varied greatly however salinity and temperature probes for these sites would need to be monitored long term in order to assess maximum and minimum values to be more accurate. A positive relationship between metal uptake and temperature has been reported meaning that different temperatures could affect SFG measurements specifically in relation to contaminants (Mubiana and Blust, 2007). In the present study, a positive correlation was observed between respiration and water temperature.…”

Section: Discussionsupporting

confidence: 69%

Assessment of biomarkers in Mytilus edulis to determine good environmental status for implementation of MSFD in Ireland

Giltrap

Ronan

Hardenberg

et al. 2013

Marine Pollution Bulletin

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Candidate OSPAR/ICES recommended biomarkers at the level of the individual in Mytilus edulis for determination of good environmental status for MSFD were evaluated against contaminant levels at sites around Ireland. The sites chosen ranged from moderate to low pollution levels, but the actual ranking of the sites varied according to the contaminant levels present. At the most contaminated site, Cork, 4 out of 16 contaminants exceeded the EAC, while at Shannon, no EACs were exceeded. The SOS assay suggested that Cork was the healthiest site with a LT 50 of 17.6 days, while SOS for Shannon was 15.6 days. Likewise, condition factors varied among sites and did not always correspond to contaminant-based status. There may be uncertainty in assigning status around the not good:good boundary. This raises potential difficulties not only in the biomarker/contaminant load relationship but also in the reliability of the biomarkers themselves and hence barriers meeting compliance levels.Keywords: OSPAR; ICES; MSFD compliance; Mytilus edulis; Biomarkers; contaminants; IntroductionThe main objective of the Marine Strategy Framework Directive (MSFD) [2008/56/EC] is to maintain good environmental status for marine waters, habitats and resources delivered in an integrated ecosystem based approach. In general current water quality assessments for hazardous substances in Ireland and elsewhere relied solely on chemical analysis alone but it is widely accepted through the Oslo and Paris Commission (OSPAR) and the International Council for Exploration of the Sea (ICES) that chemical monitoring alone is no longer sufficient to assess pollution impacts in the marine environment and that integration of chemical and biological effects data is essential to provide an insight into the actual health status of the ecosystem. In recent years OSPAR and ICES have increased their focus on the integration of biological and chemical data, this being a key reporting requirement under the MSFD (8.2). Integration of such measurements forms an important element in linking contaminants and ecological responses and in assessing the overall quality of the marine environment. Over the last few years a wide range of biomarkers have been employed in monitoring to provide early warning signals for potential contamination.The blue mussel, Mytilus edulis has been extensively used as an indicator of environmental pollution due to its sedentary and filterfeeding nature and its ability to accumulate chemical contaminants from the seawater, from resuspended sediment, and from particulate food material (Moore et al., 2004). The Mussel watch concept, first proposed by Goldberg (1975) has been adopted by many countries including Ireland whereby mussels are used as sentinel organisms of contaminant exposure. As well as contaminant detection in tissues, a range of biomarkers can be used in order to assess impacts on the individual mussel. As part of the ecosystem based approach, an integrated assessment strategy for mussels (Thain et al., 2008) has been put for...

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Section: Discussionsupporting

confidence: 69%

Assessment of biomarkers in Mytilus edulis to determine good environmental status for implementation of MSFD in Ireland

Giltrap

Ronan

Hardenberg

et al. 2013

Marine Pollution Bulletin

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“…Previous research generally has shown that clams incorporate Pb into their shells in relation to ambient water concentrations (Babukutty & Chacko 1992, Pitts & Wallace 1994, Almeida et al 1998, Boisson et al 1998; however, these studies did not examine the relationship at different temperatures or salinities. More recently Mubiana & Blust (2007) showed that Pb uptake into soft tissue is positively correlated to temperature, but they did not examine the effects of temperature on Pb uptake into shell. It is difficult to discern the underlying causes of the significant relationship between temperature and juvenile shell D Pb that we found.…”

Section: Barium and Lead Uptakementioning

confidence: 99%

Temperature and salinity effects on elemental uptake in the shells of larval and juvenile softshell clams Mya arenaria

Strasser¹,

Mullineaux²,

Thorrold³

2008

Mar. Ecol. Prog. Ser.

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The chemical composition of biogenic carbonate has great potential to serve as a natural tag in studies of marine population connectivity. Yet the degree to which carbonate chemistry reflects ambient water composition may be influenced by environmental parameters, physiology, and uptake kinetics. We explored the effects of temperature and salinity on the uptake of elements into shells of larval and juvenile softshell clams Mya arenaria. Clams were reared under controlled conditions using combinations of temperatures (15, 20, and 24°C) and salinities (22 and 30 ‰) commonly encountered in their natural habitat. We analyzed the ratios of a suite of elements (Mg, Mn, Sr, Ba and Pb) to Ca in seawater and shells using solution-based inductively coupled plasma-mass spectrometry (ICP-MS). Elemental ratios were translated into discrimination coefficients (D element ) to account for water chemistry variability among treatments. For larval shell, we found that D Mn was lower in the low-temperature treatment than at higher temperatures, had mixed results for correlations with salinity, and exhibited an interactive effect between salinity and temperature. We also found that D Ba of larval shell was higher in the 15°C treatment than at the other 2 temperatures. In juvenile shell, we found a temperature effect for D Mn , however the exact relationship was unclear because D Mn was higher in the mid-temperature treatment than either the low-or high-temperature treatments. D Sr was negatively correlated with salinity in juveniles, with evidence of an interactive effect for temperature and salinity. D Ba and D Pb were both higher in juveniles in the low-temperature treatment than in the 2 higher temperatures. When discrimination coefficients significantly differed based on ANOVA, we used post hoc comparisons to further explore the effects of temperature and salinity. Correlation analyses showed that uptake differed significantly between larval and juvenile M. arenaria shell for all elements, with no predictable relationship in shell uptake between the 2 stages except for D Ba . All of the elements examined in this study have the potential to be useful in tagging studies where geographic variability in temperature, salinity or elemental concentrations exists, although caution should be used to ensure any biological interactions with these variables are accounted for in data interpretation.KEY WORDS: Mya arenaria · Bivalve shell · Elemental uptake · Discrimination coefficients · Temperature · Salinity · Larva · Biogenic carbonate Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 370: [155][156][157][158][159][160][161][162][163][164][165][166][167][168][169] 2008 (and therefore its role in connectivity) is challenging due to small larval sizes, rapid dilution rates, and high larval mortality (Thorson 1950(Thorson , 1966.In recent years, the use of artificial and natural tags to track marine larvae has been explored (e.g. Thorrold et al. 2002, Levin 2006. One type of natur...

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“…Previous research generally has shown that clams incorporate Pb into their shells in relation to ambient water concentrations (Babukutty and Chacko, 1992;Almeida et al, 1998;, however these studies do not examine the relationship at different temperatures or salinities. More recently Mubiana and Blust (2007) showed that Pb uptake into soft tissue is positively correlated to temperature, but they did not examine the effects of temperature on Pb uptake into shell. It is difficult to discern the underlying causes of the significant relationship between temperature and juvenile shell Dpb that we found.…”

Section: Barium and Lead Uptakementioning

confidence: 99%

Metapopulation dynamics of the softshell clam, Mya arenaria

Strasser¹

2008

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Effects of temperature on scope for growth and accumulation of Cd, Co, Cu and Pb by the marine bivalve Mytilus edulis

Cited by 162 publications

References 34 publications

Assessment of biomarkers in Mytilus edulis to determine good environmental status for implementation of MSFD in Ireland

Assessment of biomarkers in Mytilus edulis to determine good environmental status for implementation of MSFD in Ireland

Temperature and salinity effects on elemental uptake in the shells of larval and juvenile softshell clams Mya arenaria

Metapopulation dynamics of the softshell clam, Mya arenaria

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