@article{b52aef9f7af64cbbaec1e4c99f31fde2,
title = "Can amino acid racemization be utilized for fish age validation?",
abstract = "We investigated the relationship between aspartic acid d:l ratios and otolith-derived age estimates in Gulf of Mexico red snapper, Lutjanus campechanus (ages 1–26 years; R2 = 0.89) and Caribbean yellowtail snapper, Ocyurus chrysurus (ages 2–17 years; R2 = 0.84). The estimated racemization rate was 0.61 × 10−3 year−1 for red snapper and 1.28 × 10−3 year−1 for yellowtail snapper, reflecting temperature differences between study regions. Mean jackknifed error in ages predicted from aspartic acid d:l was 1.70 ± 0.39 years for red snapper and 1.57 ± 0.41 years for yellowtail snapper. Results suggest amino acid racemization may be an effective tool for direct age estimation and potentially age validation in fishes.",
keywords = "age validation, amino acid racemization, eye lens, reef fish",
author = "Chamberlin, {Derek W.} and Shervette, {Virginia R.} and Kaufman, {Darrell S.} and Bright, {Jordon E.} and Patterson, {William F.}",
note = "Funding Information: The authors thank Captain Johnny Greene and the crew of the F/V Intimidator for help in capturing red snapper sam-ples, as well as Kristin Hannan, Tom TinHan, and other NOAA Fisheries personnel onboard the Gulf of Mexico Bottom Longline Survey. Laboratory support and data archival at the University of Florida were provided by Miaya Glabach. For yel-lowtail snapper, the authors thank Jes{\'u}s Rivera Hern{\'a}ndez, Wilson Santiago Soler, Gerson “Nicky” Martinez, G. “Nick Jr.” Martinez, Julien Magras, David Jones, Sarah Zajovits, and Kay-ley Kirkland for assistance with sample collection and pro-cessing. The authors also thank SEAMAP-Caribbean (Noemi Pe{\~n}a Alvarado, Wilfredo Torres, Luis A. Rivera, Aida Rosario, Veronica Seda, and Marcos Hanke) for providing many of the yellowtail snapper PR samples.This work was supported by a NOAA Fisheries Saltonstall-Kennedy grant (No. NA18NMF4270203), a NOAA Fisheries Marine Fisheries Initiative grant (No. NA15NMF4330153), the University of Florida, and the University of South Carolina. The Amino Acid Geochronology Lab is supported by the National Science Foundation (1855381). Funding Information: This work was supported by a NOAA Fisheries Saltonstall-Kennedy grant (No. NA18NMF4270203), a NOAA Fisheries Marine Fisheries Initiative grant (No. NA15NMF4330153), the University of Florida, and the University of South Carolina. Funding Information: The Amino Acid Geochronology Lab is supported by the National Science Foundation (1855381). Publisher Copyright: {\textcopyright} 2022 The Author(s).",
year = "2023",
month = mar,
doi = "10.1139/cjfas-2022-0161",
language = "English (US)",
volume = "80",
pages = "642--647",
journal = "Canadian Journal of Fisheries and Aquatic Sciences",
issn = "0706-652X",
publisher = "National Research Council of Canada",
number = "3",
}