Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/16465
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Consistency of patterns between laboratory experiments and field collected fish in otolith chemistry: an example and applications for salinity reconstructions
Author: Elsdon, T.
Gillanders, B.
Citation: Marine and Freshwater Research, 2005; 56(5):609-617
Publisher: C S I R O Publishing
Issue Date: 2005
ISSN: 1323-1650
1448-6059
Statement of
Responsibility: 
T. S. Elsdon and B. M. Gillanders
Abstract: Elemental concentrations within fish otoliths can track movements and migrations of fish through gradients of environmental variables. Tracking the movements of fish relies on establishing links between environmental variables and otolith chemistry, with links commonly made using laboratory experiments that rear juvenile fish. However, laboratory experiments done on juvenile fish may not accurately reflect changes in wild fish, particularly adults. We tested the hypotheses that: (1) the relationship between ambient (water) and otolith chemistry is similar between laboratory-reared black bream (Acanthopagrus butcheri) and wild black bream; and (2) ontogeny does not influence otolith chemistry. Field-collected and laboratory-reared fish showed similar effects of ambient strontium : calcium (Sr : Ca) on otolith Sr : Ca concentrations. However, ambient and otolith barium : calcium concentrations (Ba : Ca) differed slightly between laboratory-reared and field-collected fish. Importantly, fish reared in stable environmental variables showed no influence of ontogeny on Sr : Ca or Ba : Ca concentrations. Natural distributions of ambient Sr : Ca showed no clear relationship to salinity, yet, ambient Ba : Ca was inversely related to salinity. The distribution of ambient Sr : Ca and Ba : Ca in estuaries inhabited by black bream, suggest that these elements can answer different questions regarding environmental histories of fish. Reconstructing salinity histories of black bream using otolith Ba : Ca concentrations seems plausible, if adequate knowledge of Ba : Ca gradients within estuaries is obtained.
Keywords: Barium
elements
ontogeny
strontium
Description: Copyright © 2005 CSIRO
DOI: 10.1071/MF04146
Published version: http://dx.doi.org/10.1071/mf04146
Appears in Collections:Aurora harvest 6
Earth and Environmental Sciences publications
Environment Institute Leaders publications
Environment Institute publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.