Effects of temperature on scope for growth and accumulation of Cd, Co, Cu and Pb by the marine bivalve Mytilus edulis
Mubiana, V.; Blust, R. (2007). Effects of temperature on scope for growth and accumulation of Cd, Co, Cu and Pb by the marine bivalve Mytilus edulis. Mar. Environ. Res. 63(3): 219-235. dx.doi.org/10.1016/j.marenvres.2006.08.005
In: Marine Environmental Research. Applied Science Publishers: Barking. ISSN 0141-1136; e-ISSN 1879-0291, more
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| Keywords |
Accumulation
Chemical elements > Metals > Heavy metals > Cadmium
Chemical elements > Metals > Heavy metals > Lead
Chemical elements > Metals > Transition elements > Heavy metals > Cobalt
Chemical elements > Metals > Transition elements > Heavy metals > Copper
Environmental effects > Temperature effects
Population functions > Growth
Mytilus edulis Linnaeus, 1758 [WoRMS]
Marine/Coastal |
| Author keywords |
mussels; heavy metals; bioaccumulation; temperature; speciation; scope for growth |
| Project | Top | Authors |
- Validation of alternative marine calcareous skeletons as recorders of global climate change, more
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| Abstract |
In many aquatic organisms including Mytilus edulis, the role of temperature on bioaccumulation of metals is still not clearly understood. In this study, uptake and accumulation of Cu, Co, Cd and Pb in mussels were investigated at different temperatures (6-26 °C). Results from exposure of isolated gills showed a positive relationship between temperature and metal uptake. But in whole organism experiments, only the accumulations of non-essential metals (Cd, Pb) showed a similar trend while the two essential metals Co and Cu were independent and inversely related to temperature, respectively. With exception of Cu, elimination process appeared to be independent of temperature. The study also showed that neither changes in scope for growth (SFG) of mussels nor chemical speciation could fully account for the observed temperature-effects. Overall, these results suggest that fundamentally (i.e. at epithelial membranes), temperature-effects on uptake are largely due to changes in solution chemistry and physical kinetics, which favours higher uptake at high temperature. But at whole organism level, complex physiological responses appears to mask the relationship, particularly for biologically essential metals like copper. |
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