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Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus.

It is well documented that marine oysters are net bioaccumulators of trace metals and they can be employed as biomonitors of time-integrated measurements of bioavailable metal fractions over their lifetime. In this study, the Malaysian mangrove flat tree oyster Isognomon alatus collected from the es...

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Main Authors:	Yap, Chee Kong, Azmizan, A. R., Hanif, M. S.
Format:	Article
Language:	English English
Published:	Springer Link 2011
Online Access:	http://psasir.upm.edu.my/id/eprint/24824/1/Biomonitoring%20of%20trace%20metals%20%28Fe%2C%20Cu%20and%20Ni%29%20in%20the%20mangrove%20area%20of%20Peninsular%20Malaysia%2C%20using%20different%20soft%20tissues%20of%20flat-tree%20oyster%20Isognomon%20alatus..pdf http://psasir.upm.edu.my/id/eprint/24824/ http://link.springer.com/
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spelling	my.upm.eprints.248242015-10-27T03:41:11Z http://psasir.upm.edu.my/id/eprint/24824/ Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus. Yap, Chee Kong Azmizan, A. R. Hanif, M. S. It is well documented that marine oysters are net bioaccumulators of trace metals and they can be employed as biomonitors of time-integrated measurements of bioavailable metal fractions over their lifetime. In this study, the Malaysian mangrove flat tree oyster Isognomon alatus collected from the estuaries of Lukut River (five sites), Sepang Besar River (one site), and one metal-polluted site at Kg. Pasir Puteh were dissected into muscle, mantle plus gills, byssus, and remaining soft tissues. All the four different soft tissues were analyzed for Fe, Cu, and Ni. Significant spatial differences in the accumulated metal concentrations of the oysters were found between sampling sites, and these could be attributed to anthropogenic inputs including discharges of shrimp ponds (Lukut), animal husbandry (Sepang Besar), sewage, shipping, and industrial effluents (Kg. Pasir Puteh). For Fe, the tissue distribution followed: byssus > mantle plus gill >muscle > remaining soft tissues, while for Cu and Ni, both followed byssus > remaining soft tissues > mantle plus gill > muscle. This indicated that byssus could act as an excretion route for the metals. Based on a correlation analysis between oyster tissues and sediments, selected tissues of I. alatus were shown to be good biomonitors of Ni and Cu contamination, while high regulative capacity of Fe in the oyster tissues could hardly reflect the actual Fe levels in the surroundings. However, the clustering patterns based on metal levels in the four different soft tissues were not in agreement with those based on the geochemical fractions of sediment data. This phenomenon which was due to the metal contamination might not necessarily create high bioavailabilities of metals to the biomonitor I. alatus, which might involve differences in uptake, excretion, and sequestration of metals. Similarly to the Mussel Watch approach, this study points to the very potential use of the different soft tissues of I. alatus as biomonitors for regular biomonitoring in the mangrove area of Peninsular Malaysia. Springer Link 2011-06 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24824/1/Biomonitoring%20of%20trace%20metals%20%28Fe%2C%20Cu%20and%20Ni%29%20in%20the%20mangrove%20area%20of%20Peninsular%20Malaysia%2C%20using%20different%20soft%20tissues%20of%20flat-tree%20oyster%20Isognomon%20alatus..pdf Yap, Chee Kong and Azmizan, A. R. and Hanif, M. S. (2011) Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus. Water, Air and Soil Pollution, 218 (1). pp. 19-36. ISSN 0049-6979 http://link.springer.com/ 10.1007/s11270-010-0621-8 English
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
language	English English
description	It is well documented that marine oysters are net bioaccumulators of trace metals and they can be employed as biomonitors of time-integrated measurements of bioavailable metal fractions over their lifetime. In this study, the Malaysian mangrove flat tree oyster Isognomon alatus collected from the estuaries of Lukut River (five sites), Sepang Besar River (one site), and one metal-polluted site at Kg. Pasir Puteh were dissected into muscle, mantle plus gills, byssus, and remaining soft tissues. All the four different soft tissues were analyzed for Fe, Cu, and Ni. Significant spatial differences in the accumulated metal concentrations of the oysters were found between sampling sites, and these could be attributed to anthropogenic inputs including discharges of shrimp ponds (Lukut), animal husbandry (Sepang Besar), sewage, shipping, and industrial effluents (Kg. Pasir Puteh). For Fe, the tissue distribution followed: byssus > mantle plus gill >muscle > remaining soft tissues, while for Cu and Ni, both followed byssus > remaining soft tissues > mantle plus gill > muscle. This indicated that byssus could act as an excretion route for the metals. Based on a correlation analysis between oyster tissues and sediments, selected tissues of I. alatus were shown to be good biomonitors of Ni and Cu contamination, while high regulative capacity of Fe in the oyster tissues could hardly reflect the actual Fe levels in the surroundings. However, the clustering patterns based on metal levels in the four different soft tissues were not in agreement with those based on the geochemical fractions of sediment data. This phenomenon which was due to the metal contamination might not necessarily create high bioavailabilities of metals to the biomonitor I. alatus, which might involve differences in uptake, excretion, and sequestration of metals. Similarly to the Mussel Watch approach, this study points to the very potential use of the different soft tissues of I. alatus as biomonitors for regular biomonitoring in the mangrove area of Peninsular Malaysia.
format	Article
author	Yap, Chee Kong Azmizan, A. R. Hanif, M. S.
spellingShingle	Yap, Chee Kong Azmizan, A. R. Hanif, M. S. Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus.
author_facet	Yap, Chee Kong Azmizan, A. R. Hanif, M. S.
author_sort	Yap, Chee Kong
title	Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus.
title_short	Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus.
title_full	Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus.
title_fullStr	Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus.
title_full_unstemmed	Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus.
title_sort	biomonitoring of trace metals (fe, cu and ni) in the mangrove area of peninsular malaysia, using different soft tissues of flat-tree oyster isognomon alatus.
publisher	Springer Link
publishDate	2011
url	http://psasir.upm.edu.my/id/eprint/24824/1/Biomonitoring%20of%20trace%20metals%20%28Fe%2C%20Cu%20and%20Ni%29%20in%20the%20mangrove%20area%20of%20Peninsular%20Malaysia%2C%20using%20different%20soft%20tissues%20of%20flat-tree%20oyster%20Isognomon%20alatus..pdf http://psasir.upm.edu.my/id/eprint/24824/ http://link.springer.com/
_version_	1643828476126429184
score	13.211869

Biomonitoring of trace metals (Fe, Cu and Ni) in the mangrove area of Peninsular Malaysia, using different soft tissues of flat-tree oyster Isognomon alatus.

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