Abstract:
:The effect of digestion by a predatory fish (largemouth bass Micropterus salmoides) on stable isotopic (delta(13)C and delta(18)O) and trace elemental (Sr:Ca and Ba:Ca) compositions of prey fish (bluegill Lepomis macrochirus) otoliths was investigated in a laboratory experiment. Trace element and stable-isotopic signatures of L. macrochirus otoliths were not significantly altered for up to 16 h after L. macrochirus were consumed by M. salmoides. Prey fish otoliths recovered from predator digesta can retain environmental stable isotopic and trace elemental signatures, suggesting that determination of environmental history for prey fishes by stable-isotope and trace-element analysis of otoliths recovered from stomachs of piscivorous fishes will be feasible.
journal_name
J Fish Bioljournal_title
Journal of fish biologyauthors
Phelps QE,Noatch MR,Lewis HA,Myers DJ,Zeigler JM,Eichelberger JS,Saltzgiver MJ,Whitledge GWdoi
10.1111/j.1095-8649.2009.02454.xsubject
Has Abstractpub_date
2009-12-01 00:00:00pages
2606-14issue
10eissn
0022-1112issn
1095-8649pii
JFB2454journal_volume
75pub_type
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