Toxicity of Metals to a Freshwater Snail, Melanoides tuberculata
Adult freshwater snails Melanoides tuberculata (Gastropod, Thiaridae) were exposed for a four-day period in laboratory conditions to a range of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), iron (Fe), aluminium (Al), and manganese (Mn) concentrations. Mortality was assessed and media...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/125785 |
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| author | M. Shuhaimi-Othman R. Nur-Amalina Y. Nadzifah |
| author_facet | M. Shuhaimi-Othman R. Nur-Amalina Y. Nadzifah |
| author_sort | M. Shuhaimi-Othman |
| collection | DOAJ |
| description | Adult freshwater snails Melanoides tuberculata (Gastropod, Thiaridae) were exposed for a four-day period in laboratory conditions to a range of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), iron (Fe), aluminium (Al), and manganese (Mn) concentrations. Mortality was assessed and median lethal times (LT50) and concentrations (LC50) were calculated. LT50 and LC50 increased with the decrease in mean exposure concentrations and times, respectively, for all metals. The LC50 values for the 96-hour exposures to Cu, Cd, Zn, Pb, Ni, Fe, Al, and Mn were 0.14, 1.49, 3.90, 6.82, 8.46, 8.49, 68.23, and 45.59 mg L−1, respectively. Cu was the most toxic metal to M. tuberculata, followed by Cd, Zn, Pb, Ni, Fe, Mn, and Al (Cu > Cd > Zn > Pb > Ni > Fe > Mn > Al). Metals bioconcentration in M. tuberculata increases with exposure to increasing concentrations and Cu has the highest accumulation (concentration factor) in the soft tissues. A comparison of LC50 values for metals for this species with those for other freshwater gastropods reveals that M. tuberculata is equally sensitive to metals. |
| format | Article |
| id | doaj-art-160404777fa94cbdb81448b3bd993384 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-160404777fa94cbdb81448b3bd9933842025-02-03T05:51:34ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/125785125785Toxicity of Metals to a Freshwater Snail, Melanoides tuberculataM. Shuhaimi-Othman0R. Nur-Amalina1Y. Nadzifah2School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, National University of Malaysia (UKM), Selangor, 43600 Bangi, MalaysiaSchool of Environmental and Natural Resource Sciences, Faculty of Science and Technology, National University of Malaysia (UKM), Selangor, 43600 Bangi, MalaysiaSchool of Environmental and Natural Resource Sciences, Faculty of Science and Technology, National University of Malaysia (UKM), Selangor, 43600 Bangi, MalaysiaAdult freshwater snails Melanoides tuberculata (Gastropod, Thiaridae) were exposed for a four-day period in laboratory conditions to a range of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), iron (Fe), aluminium (Al), and manganese (Mn) concentrations. Mortality was assessed and median lethal times (LT50) and concentrations (LC50) were calculated. LT50 and LC50 increased with the decrease in mean exposure concentrations and times, respectively, for all metals. The LC50 values for the 96-hour exposures to Cu, Cd, Zn, Pb, Ni, Fe, Al, and Mn were 0.14, 1.49, 3.90, 6.82, 8.46, 8.49, 68.23, and 45.59 mg L−1, respectively. Cu was the most toxic metal to M. tuberculata, followed by Cd, Zn, Pb, Ni, Fe, Mn, and Al (Cu > Cd > Zn > Pb > Ni > Fe > Mn > Al). Metals bioconcentration in M. tuberculata increases with exposure to increasing concentrations and Cu has the highest accumulation (concentration factor) in the soft tissues. A comparison of LC50 values for metals for this species with those for other freshwater gastropods reveals that M. tuberculata is equally sensitive to metals.http://dx.doi.org/10.1100/2012/125785 |
| spellingShingle | M. Shuhaimi-Othman R. Nur-Amalina Y. Nadzifah Toxicity of Metals to a Freshwater Snail, Melanoides tuberculata The Scientific World Journal |
| title | Toxicity of Metals to a Freshwater Snail, Melanoides tuberculata |
| title_full | Toxicity of Metals to a Freshwater Snail, Melanoides tuberculata |
| title_fullStr | Toxicity of Metals to a Freshwater Snail, Melanoides tuberculata |
| title_full_unstemmed | Toxicity of Metals to a Freshwater Snail, Melanoides tuberculata |
| title_short | Toxicity of Metals to a Freshwater Snail, Melanoides tuberculata |
| title_sort | toxicity of metals to a freshwater snail melanoides tuberculata |
| url | http://dx.doi.org/10.1100/2012/125785 |
| work_keys_str_mv | AT mshuhaimiothman toxicityofmetalstoafreshwatersnailmelanoidestuberculata AT rnuramalina toxicityofmetalstoafreshwatersnailmelanoidestuberculata AT ynadzifah toxicityofmetalstoafreshwatersnailmelanoidestuberculata |