Shark parasites as bio-indicators of metals in two South African embayments

被引：8

作者：

Morris, Thomas ^{[1
]}

Avenant-Oldewage, Annemarie ^{[2
]}

Lamberth, Stephen ^{[3
]}

Reed, Cecile ^{[1
]}

机构：

[1] Univ Cape Town, Dept Biol Sci, Private Bag X3, ZA-7701 Cape Town, South Africa

[2] Univ Johannesburg, Dept Zool, POB 524,Auckland Pk, ZA-2006 Johannesburg, South Africa

[3] Dept Agr Forestry & Fisheries, Fisheries Management, Private Bag X2, ZA-8012 Cape Town, South Africa

来源：

MARINE POLLUTION BULLETIN | 2016年 / 104卷 / 1-2期

基金：

新加坡国家研究基金会;

关键词：

South Africa; Bioaccumulation; Parasites; Callorhinchus capensis; Rhinobatos annulatus; Rhinobatos blochii; MARINE POLLUTION RESEARCH; HEAVY-METALS; TRACE-METALS; FISH; ACCUMULATION; MERCURY; SIZE; BIOACCUMULATION; CALLORHINCHUS; BIOINDICATORS;

D O I：

10.1016/j.marpolbul.2016.01.027

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Concentrations of metals in the tissues of the sharks Callorhinchus capensis, Rhinobatos annulatus and Rhinobatos blochii collected in False Bay and Saldanha Bay, South Africa, in 2013 were investigated. Metal concentrations in the tissue of the parasites Gyrocotyle plena infecting the spiral intestine of C. capensis and Proleptus obtusus infecting the stomach of R. annulatus and R. blochii were also analysed. G. plena showed accumulation of arsenic (4073.52 +/- 5561.54 mu g/g), manganese (522.16 +/- 578.21 mu g/g), lead (64.87 +/- 101.7 mu g/g), titanium (1821.42 +/- 1348.16 mu g/g) and zinc (12439.57 +/- 9743.60 mu g/g). These results when compared to baseline values, showed that accumulation of the metals in G. piano are orders of magnitude higher than those in the surrounding environment and 2 to 6 times the concentration of the surrounding host's tissues. These results show the usefulness of marine endoparasites as early warning indicators of heavy metal pollution. (C) 2016 Published by Elsevier Ltd.

引用

页码：221 / 228

页数：8

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