Abstract:
:The trace element composition of the fish otolith is an indicator of biomineralization. In contrast to other skeletal tissue, the otolith retains its entire original structure and does not absorb any elements after the fish dies. Because otoliths in carp degrade very slowly in the dead body, the information it provides on the environment is retained, even in fossil form. Here, we report our analysis of the trace elements in otoliths of carp and of the water in Donghu Lake and Longhupao Lake, Heilongjiang province, China, where the fish lived. The results revealed that the trace elements found in the carp otoliths were clearly correlated with those found in these water bodies. There were high concentrations of Au, Ba, K, Sr and Zn in both the water and otoliths; in contrast there were high levels of As, Na and Se in water, but low concentrations in otoliths. These results indicate that an analysis of the otoliths of carps provides an accurate procedure for studying the surrounding hydrochemistry conditions. The interaction of the elements during deposition was also studied. The correlation coefficients of 13 trace elements identified in the otoliths in both lakes were calculated.
journal_name
Fish Physiol Biochemjournal_title
Fish physiology and biochemistryauthors
Gao Y,Feng Q,Ren D,Qiao L,Li Sdoi
10.1007/s10695-008-9294-2subject
Has Abstractpub_date
2010-03-01 00:00:00pages
91-100issue
1eissn
0920-1742issn
1573-5168journal_volume
36pub_type
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