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Distribution of heavy metal concentrations in the different soft tissues of the freshwater snail Pomacea insularum (DOrbigny, 1839; Gastropoda), and sediments collected from polluted and unpolluted sites from Malaysia.


Citation

Yap, Chee Kong and Ismail, Ahmad and Ali, Jambari and Tan, Soon Guan and Edward Thomas, Franklin Berandah and Huan, Pang (2009) Distribution of heavy metal concentrations in the different soft tissues of the freshwater snail Pomacea insularum (DOrbigny, 1839; Gastropoda), and sediments collected from polluted and unpolluted sites from Malaysia. Toxicological & Environmental Chemistry, 91 (1). pp. 17-27. ISSN 0277–2248

Abstract

Pomacea insularum were collected from polluted and unpolluted freshwater ecosystems in Malaysia. Besides the shells, the soft tissues were dissected and pooled into cephalic tentacle, foot, mantle, operculum, digestive tract, penial sac,lung sac, and remainder. These tissues were analyzed for the concentrations of Cu, Cd, Fe, Ni, and Zn. The present work resulted in three interesting findings. First, the concentrations of Cu, Cd, Fe, and Zn found in most of the different parts of P. insularum collected from the polluted Juru River were significantly (P50.05) higher than those found in the snails from the other four sites. Second, positive and significant correlation coefficients were found for sediment-lung sac for Cd, Fe, and Zn while sediment-digestive tract for Cu. These correlation results indicated that lung sacs could reflect the environmental concentrations of Cd, Fe, and Zn, while the digestive tract could do the same for Cu. Third, the different concentrations of heavy metals found in the different parts indicated different metal regulation and binding sites in these organs. The significant correlation coefficients between different tissues indicated that they might be caused by similar metal regulation and sequestration. Based on the above findings, P. insularum are a potential biomonitor of Cd, Cu, Fe, and Zn pollution in freshwater ecosystems.


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Additional Metadata

Item Type: Article
Subject: Snails - Effect of heavy metals on - Malaysia
Subject: Pomacea - Malaysia
Subject: Heavy metals - Environmental aspects - Malaysia
Divisions: Faculty of Biotechnology and Biomolecular Sciences
DOI Number: https://doi.org/10.1080/02772240802010904
Publisher: Taylor & Francis
Keywords: Pomacea insularum; Heavy metals; Different soft tissues; Freshwater ecosystem.
Depositing User: Ms. Nida Hidayati Ghazali
Date Deposited: 29 Aug 2012 00:43
Last Modified: 04 Nov 2015 03:10
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/02772240802010904
URI: http://psasir.upm.edu.my/id/eprint/14110
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