The feasibility of bomb radiocarbon analysis to support an age-at-length relationship for red abalone, Haliotis rufescens Swainson in northern California
Journal Article
·
· Journal of Shellfish Research, vol. 27, no. 5, December 1, 2008, pp. 1177-1182
OSTI ID:964076
Analysis of bomb generated radiocarbon ({sup 14}C) changes in a red abalone, Haliotis rufescens Swainson shell was used to investigate age-at-length relationships derived from data from a previous multi-year, multi-site tag-recapture study. Shell carbonate was extracted from four successive growth trajectory locations in a single shell with a length of 251 mm MSL. Extraction locations were based on VBGF predictions and chosen to span the initial rise of the {sup 14}C-bomb pulse that is known to have occurred in surface ocean waters during 1958 {+-} 1 y in the northeast Pacific. The close temporal correspondence of the red abalone sample series to regional {Delta}{sup 14}C records demonstrated the utility of the technique for validating age-at-length relationships for the red abalone. The findings provided support for a mean VBGF derived age of 32 y (range 30 to 33 y) for the specimen; however, the analysis of {sup 14}C data indicated that the specimen could be older.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 964076
- Report Number(s):
- LLNL-JRNL-409676
- Journal Information:
- Journal of Shellfish Research, vol. 27, no. 5, December 1, 2008, pp. 1177-1182, Journal Name: Journal of Shellfish Research, vol. 27, no. 5, December 1, 2008, pp. 1177-1182 Journal Issue: 5 Vol. 27
- Country of Publication:
- United States
- Language:
- English
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