The discrepancy in concentration of metals (Cu, Pb and Zn) in oyster tissue (Saccostrea glomerata) and ambient bottom sediment (Sydney estuary, Australia)

被引：35

作者：

Birch, G. F. ^{[1
]}

Melwani, A. ^{[2
]}

Lee, J. -H. ^{[1
]}

Apostolatos, C. ^{[1
]}

机构：

[1] Univ Sydney, Environm Geol Grp, Sch Geosci, Sydney, NSW 2006, Australia

[2] Macquarie Univ, Dept Biol Sci, N Ryde, NSW 2109, Australia

来源：

MARINE POLLUTION BULLETIN | 2014年 / 80卷 / 1-2期

关键词：

Metals; Saccostrea glomerata; Bioaccumulation; Sydney estuary; Sediments; Tissue; PORT-JACKSON ESTUARY; HEAVY-METALS; TRACE-METALS; MYTILUS-GALLOPROVINCIALIS; MUSSEL WATCH; ROCK OYSTER; QUALITY GUIDELINES; CRASSOSTREA-GIGAS; COASTAL WATERS; CONTAMINATED SEDIMENTS;

D O I：

10.1016/j.marpolbul.2013.12.005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The current study aimed to examine the relationship between metals in sediments and metal bioaccumulation in oyster tissue in a highly-modified estuary (Sydney estuary, Australia). While extensive metal contamination was observed in surficial sediments, suspended particulate matter and oyster tissue, a significant relationship between these media could not be established. No relationship was determined between sediment quality guidelines and oyster size or weight, nor with human consumption levels for metals in oyster tissue. Moreover, oyster tissue metal concentrations varied greatly at a single locality over temporal scales of years. Oyster tissue at all 19 study sites exceeded consumptions levels for Cu. Bioaccumulation of metals in oyster tissue is a useful dynamic indicator of anthropogenic influence within estuaries, however oysters cannot be used in Sydney estuary as a valid biomonitor due to overriding internal regulation (homoestasis) by the animal, or by external natural (sediment resuspension) and anthropogenic (sewer/stormwater discharges) pressures, or both. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：263 / 274

页数：12

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