Otoliths of sub-adult Lake Sturgeon Acipenser fulvescens contain aragonite and vaterite calcium carbonate polymorphs
- Univ. of Manitoba, Winnipeg, MB (Canada)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
In this paper we quantified the percent CaCO3 polymorph composition in otoliths of larval and juvenile Lake Sturgeon Acipenser fulvescens via X-ray microdiffraction. Sagittal otoliths of sub-adults were primarily composed of aragonite (> 90%) while the lapilli otoliths were 100% vaterite. This is the first time the presence of aragonite in otoliths has been reported in an acipenseriform and is surprising given that the ability to form aragonite otoliths was not thought to have evolved until the separation of teleost and holostean species from other Actinopterygian fishes (e.g., sturgeon, paddlefish, gar).
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1526391
- Journal Information:
- Journal of Fish Biology, Journal Name: Journal of Fish Biology Journal Issue: 5 Vol. 94; ISSN 0022-1112
- Publisher:
- Wiley - Fisheries Society of the British IslesCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Significance of otolith calcium carbonate crystal structure diversity to microchemistry studies
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journal | May 2019 |
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