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Temperature and salinity effects on magnesium, manganese, and barium incorporation in otoliths of larval and early juvenile spot Leiostomus xanthurus

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dc.contributor.author Martin, Gretchen Bath
dc.contributor.author Thorrold, Simon R.
dc.date.accessioned 2011-04-21T16:13:57Z
dc.date.available 2011-04-21T16:13:57Z
dc.date.issued 2005-06-02
dc.identifier.citation Marine Ecology Progress Series 293 (2005): 223-232 en_US
dc.identifier.uri http://hdl.handle.net/1912/4488
dc.description Author Posting. © Inter-Research, Inter-Research. This article is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Marine Ecology Progress Series 293 (2005): 223-232, doi:10.3354/meps293223. en_US
dc.description.abstract The use of otolith chemistry to delineate fish populations and trace migration pathways is premised on a significant correlation between the elemental composition of otoliths and physicochemical properties of the ambient environment. However, few experiments have been rigorously designed to address the effects of temperature and salinity on the elemental composition of otoliths. We examined the effects of temperature and salinity on the incorporation of magnesium (Mg), manganese (Mn), and barium (Ba) in the otoliths of larval and early juvenile spot Leiostomus xanthurus by rearing fish in the laboratory under controlled environmental conditions. L. xanthurus are an estuarine dependent species that traverse varying temperature and salinity regimes throughout their life histories. It is important, therefore, to understand the influence of physicochemical properties of different water masses before attempting to reconstruct important life history transitions based on variations in otolith chemistry. Both [Mg/Ca]otolith and the Mg partition coefficient, DMg, were not significantly affected by either temperature or salinity, but were correlated with otolith precipitation and somatic growth rates. Temperature and salinity had significant interaction effects on DMn, but not on [Mn/Ca]otolith. Finally, DBa was influenced by salinity but not temperature. These results highlight the complex nature of elemental deposition in otoliths, and suggest that both environmental and physiological effects likely influence elemental ratios in fish otoliths. en_US
dc.description.sponsorship This research was supported by grants from the National Science Foundation to S.R.T. (OCE- 0134998), a grant in aid to G.B.M. from the International Women’s Fishing Association, and a PEO International Women’s Organization Scholar Award to G.B.M. en_US
dc.format.mimetype application/pdf
dc.language.iso en en_US
dc.publisher Inter-Research en_US
dc.relation.uri http://dx.doi.org/10.3354/meps293223
dc.subject Otolith chemistry en_US
dc.subject Temperature en_US
dc.subject Salinity en_US
dc.subject Magnesium en_US
dc.subject Manganese en_US
dc.subject Barium en_US
dc.title Temperature and salinity effects on magnesium, manganese, and barium incorporation in otoliths of larval and early juvenile spot Leiostomus xanthurus en_US
dc.type Article en_US
dc.identifier.doi 10.3354/meps293223


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