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Type: Journal article
Title: Spatial variability of trace elements in fish otoliths: comparison with dietary items and habitat constituents in seagrass meadows
Author: Sanchez-Jerez, P.
Gillanders, B.
Kingsford, M.
Citation: Journal of Fish Biology, 2002; 61(3):801-821
Publisher: Academic Press Ltd
Issue Date: 2002
ISSN: 0022-1112
Statement of
P. Sanchez-Jerez, B. M. Gillanders, M. J. Kingsford
Abstract: Juvenile trumpeters Pelates sexlineatus, two main prey items (amphipods and polychaetes) and seagrass constituents (detritus, young and old leaves of Zostera capricorni) were collected from two sites within six estuaries, to compare the spatial variability of elemental composition (Li, Mn, Sr, Cd, Ba and Pb). Average elemental values were lower in the fish otoliths except for Sr. Significant differences in elemental composition of otoliths were detected among estuaries (Mn and Pb). Spatial differences in concentrations of Cd were found in amphipods and polychaetes; the latter also showed differences for Ba and Pb. Detritus and Z. capricorni leaves showed appreciable spatial differences for most of the elements. Spatial variability between sites was generally high. There were differences in the multivariate composition of trace elements found in the otoliths of fish among estuaries. One estuary was consistently separated from the other estuaries in the ordinations. Significant correlations were detected between concentrations of Mn in otoliths and concentrations in prey, Z. capricorni and detritus. A significant relationship was also detected between Pb in otoliths and detritus. There were significant correlations between concentrations of Mn, Sr and Ba in detritus and that in otoliths. The study demonstrated that trophic transfer and habitat constituents may be considered as a potential source for some of the elemental accumulation in fish otoliths.
Keywords: Otolith chemistry; Zostera capricorni; food sources; ICP-MS
Description: © The Fisheries Society of the British Isles The definitive version may be found at
RMID: 0020021340
DOI: 10.1111/j.1095-8649.2002.tb00912
Appears in Collections:Ecology, Evolution and Landscape Science publications
Environment Institute Leaders publications

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