Publication
Title
Differential metallothionein induction patterns in fed and starved carp (**Cyprinus carpio**) during waterborne copper exposure
Author
Abstract
Starved and fed carp (Cyprinus carpio) were exposed to sublethal waterborne copper exposure (1 ¦ÌM) for 28 d in softened Antwerp, Belgium, city tap water. Copper accumulation in liver and gill tissues was determined, and changes in branchial Na+/K+¨Cadenosine 5¡ä-triphosphatase (ATPase) activity and metallothionein (MT) induction in gill and liver tissues were investigated following 28-d copper exposure. Gill Na+/K+-ATPase activity in exposed fish, both starved and fed, was at its lowest values after 3 d of exposure, after which it slowly recovered to preexposure values. No significant differences in branchial Na+/K+-ATPase activity were found between starved and fed fish. Copper accumulation in the liver and gills of the exposed starved carp was significantly higher than that in the exposed fed carp. The highest MT induction was found in liver tissues. Different patterns of MT induction were observed in the starved and fed carp during copper exposure. Before exposure, MT concentrations in the livers of the starved fish were significantly higher than those in the fed ones. Copper exposure significantly increased MT concentration in the liver of the fed fish, but no changes occurred in the starved fish. In contrast, copper exposure increased MT concentrations in the gills of the starved fish during the first week of exposure, whereas only a slight increase in MT concentration in the gills of the fed fish was observed. When taking into account the role of feeding status in MT induction, hepatic MT was a more relevant indicator for long-term monitoring of copper pollution in carp, but gill MT provided useful information regarding short-term copper toxicity.
Language
English
Source (journal)
Environmental toxicology and chemistry. - New York, N.Y.
Environmental toxicology and chemistry. - New York, N.Y.
Publication
New York, N.Y. : 2008
ISSN
0730-7268
Volume/pages
27:10(2008), p. 2154-2158
ISI
000259295700020
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 16.10.2008
Last edited 12.11.2017
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