Publication details
Lead, mercury and cadmium content in bottom sediments, reed (Phragmites australis) beds and great pond snails (Lymnaea stagnalis) in fishponds and the role of littoral zones in their accumulation
| Authors | |
|---|---|
| Year of publication | 2011 |
| Type | Article in Periodical |
| Magazine / Source | Acta Veterinaria Brno |
| MU Faculty or unit | |
| Citation | |
| web | http://actavet.vfu.cz/80/3/0313/ |
| Doi | http://dx.doi.org/10.2754/avb201180030313 |
| Field | Ecology |
| Keywords | Fishpond littoral; heavy metals; environmental factors |
| Description | We studied the contents of cadmium (Cd), lead (Pb) and mercury (Hg) in common reed (Phragmites australis), great pond snails (Lymnaea stagnalis), and in littoral bottom sediments in 18 fishponds in two regions of the Czech Republic. We also assessed the impact of environmental factors on heavy metal accumulation in these three components of littoral ecosystem. Cadmium and lead values were significantly higher in bottom sediments (median values 0.70 and 13.4 mg.kg-1) than in reed (0.014 and 0.51 mg.kg-1) and snails (0.074 and 0.81 mg.kg-1). Cadmium values in reed stems positively correlated with Cd values in great pond snails (Spearman’s rank correlation, rS = 0.62; p < 0.05). Cadmium and lead contents in reed stems positively correlated with each other (rS = 0.56; p < 0.05). The mercury values in snails (0.043 mg.kg-1) were higher than in sediments (0.040 mg.kg-1) and these were higher than in reed stems (0.010 mg.kg-1). |
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