Effects of metals on condition and reproductive output of the smooth toadfish in Sydney estuaries, south-eastern Australia

Alquezar, R; Markich, SJ; Booth, DJ

Effects of metals on condition and reproductive output of the smooth toadfish in Sydney estuaries, south-eastern Australia

Alquezar, R Markich, SJ Booth, DJ

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Publication Type:: Journal Article
Citation:: Environmental Pollution, 2006, 142 (1), pp. 116 - 122
Issue Date:: 2006-07-01

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Field	Value	Language
dc.contributor.author	Alquezar, R	en_US
dc.contributor.author	Markich, SJ	en_US
dc.contributor.author	Booth, DJ https://orcid.org/0000-0002-8256-1412	en_US
dc.date.available	2005-09-23	en_US
dc.date.issued	2006-07-01	en_US
dc.identifier.citation	Environmental Pollution, 2006, 142 (1), pp. 116 - 122	en_US
dc.identifier.issn	0269-7491	en_US
dc.identifier.uri	http://hdl.handle.net/10453/3618
dc.description.abstract	This study determined the condition and reproductive output of a common estuarine toadfish, Tetractenos glaber, in two metal contaminated and two reference estuaries near Sydney, Australia. Female toadfish from metal contaminated estuaries were smaller and younger than in reference estuaries; however, it could not be resolved whether these differences were due to direct effects of metal contamination or differences in nutritional value of prey. Lipid content in liver and gonad tissues was inversely related with levels of As, Pb, Cd and Co in sediment. In contrast, protein content in liver, gonad and muscle tissues was positively related to sediment levels of Ni and Co. Increased levels of Pb in gonads were associated with decreased oocyte diameter and density. This suggests a reduction in egg size and fecundity, which ultimately may lead to a decline in female reproductive output. Changes in fish health and reproduction caused by chemical pollutants may alter fish population and community structure. © 2005 Elsevier Ltd. All rights reserved.	en_US
dc.relation.ispartof	Environmental Pollution	en_US
dc.relation.isbasedon	10.1016/j.envpol.2005.09.009	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Liver	en_US
dc.subject.mesh	Gonads	en_US
dc.subject.mesh	Animals	en_US
dc.subject.mesh	Batrachoidiformes	en_US
dc.subject.mesh	Arsenicals	en_US
dc.subject.mesh	Selenium	en_US
dc.subject.mesh	Metals, Heavy	en_US
dc.subject.mesh	Cobalt	en_US
dc.subject.mesh	Lead	en_US
dc.subject.mesh	Zinc	en_US
dc.subject.mesh	Metals	en_US
dc.subject.mesh	Proteins	en_US
dc.subject.mesh	Water Pollutants	en_US
dc.subject.mesh	Rivers	en_US
dc.subject.mesh	Environmental Monitoring	en_US
dc.subject.mesh	Water Pollution	en_US
dc.subject.mesh	Fertility	en_US
dc.subject.mesh	Geologic Sediments	en_US
dc.subject.mesh	South Australia	en_US
dc.subject.mesh	Female	en_US
dc.subject.mesh	Male	en_US
dc.subject.mesh	Lipid Metabolism	en_US
dc.title	Effects of metals on condition and reproductive output of the smooth toadfish in Sydney estuaries, south-eastern Australia	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	142	en_US
utslib.for	0602 Ecology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	142	en_US

Abstract:

This study determined the condition and reproductive output of a common estuarine toadfish, Tetractenos glaber, in two metal contaminated and two reference estuaries near Sydney, Australia. Female toadfish from metal contaminated estuaries were smaller and younger than in reference estuaries; however, it could not be resolved whether these differences were due to direct effects of metal contamination or differences in nutritional value of prey. Lipid content in liver and gonad tissues was inversely related with levels of As, Pb, Cd and Co in sediment. In contrast, protein content in liver, gonad and muscle tissues was positively related to sediment levels of Ni and Co. Increased levels of Pb in gonads were associated with decreased oocyte diameter and density. This suggests a reduction in egg size and fecundity, which ultimately may lead to a decline in female reproductive output. Changes in fish health and reproduction caused by chemical pollutants may alter fish population and community structure. © 2005 Elsevier Ltd. All rights reserved.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/3618