282 
Fishery Bulletin 1 12(4) 
at initial seawater entry in Klamath River green stur- 
geon. Trans. Am. Fish. Soc. 138:240-250. 
Baremore, I. E., and J. D. Rosati. 
2011. Gulf sturgeon standardized abundance and mor- 
tality study: year one report. NOAA Tech. Memo. 
NMFS-SEFSC-619, 34 p. 
Beamish, R. J., and D. A. Fournier. 
1981. A method for comparing the precision of a set 
of age determinations. Can. J. Fish. Aquat. Sci. 
38:982-983. 
Beamish, R. J., and G. A. McFarlane. 
1983. The forgotten requirement for age validation in 
fisheries biology. Trans. Am. Fish. Soc. 112:735-743. 
Berg, J. J. 
2004. Population assessment of the Gulf of Mexico 
sturgeon in the Yellow River, Florida. M.S. thesis, 86 
p. Univ. Florida, Gainesville, FL. 
Birstein, V. J. 
1993. Sturgeons and paddlefishes: threatened fishes in 
need of conservation. Conserv. Biol. 7:773-787. 
Brennan, J. S., and G. M. Cailliet. 
1989. Comparative age-determination techniques for 
white sturgeon in California. Trans. Am. Fish. Soc. 
118:296-310. 
1991. Age determination and validation studies of white 
sturgeon, Acipenser transmontanus, in California. In 
Acipenser: actes du premier colloque international sur 
Testurgeon; Bordeaux, France, October 3-6, 1989 (P. 
Williot, ed.), p. 209-234. CEMAGREF-DICOVA, Anto- 
ny, France. 
Bruch, R. M., S. E. Campana, S. L. Davis-Foust, M. J. Hansen, 
and J. Janssen. 
2009. Lake sturgeon age validation using bomb radio- 
carbon and known-age fish. Trans. Am. Fish. Soc. 
138:361-372. 
Campana, S. E. 
2001. Accuracy, precision and quality control in age de- 
termination, including a review of the use and abuse of 
age validation methods. J. Fish Biol. 59:197-242. 
Casselman, J. M. 
1987. Determination of age and growth. In The biology 
of fish growth (A. H. Weatherley and H. S. Gill, eds.), p. 
209-242. Academic Press, London. 
Chang, W. Y. B. 
1982. A statistical method for evaluating the reproduc- 
ibility of age determination. Can. J. Fish. Aquat. Sci. 
39:1208-1210. 
Everett, S. R., D. L. Scarnecchia, G. J. Power, and C. J. 
Williams. 
2003. Comparison of age and growth of shovelnose stur- 
geon in the Missouri and Yellowstone rivers. N. Am. J. 
Fish. Manage. 23:230-240. 
Hurley, K. L., R. J. Sheehan, and R. C. Heidinger. 
2004. Accuracy and precision of age estimates for pallid 
sturgeon from pectoral fin rays. N. Am. J. Fish. Man- 
age. 24:715-718. 
Jackson, N., J. Garvey, and R. Colombo. 
2007. Comparing aging precision of calcified structures 
in shovelnose sturgeon. J. Appl. Ichthyol. 23:525-528. 
Kahn, J., and M. Mohead. 
2010. A protocol for use of shortnose, Atlantic, Gulf, and 
green sturgeons. NOAA Tech. Memo. NMFS-OPR-45, 
62 p. 
Morrow, J. V., Jr., J. P. Kirk, K. J. Killgore, and S. G. George. 
1998. Age, growth, and mortality of shovelnose sturgeon 
in the lower Mississippi River. N. Am. J. Fish. Manage. 
18:725-730. 
Rien, T. A., and R. C. Beamesderfer. 
1994. Accuracy and precision of white sturgeon age es- 
timates from pectoral fin rays. Trans. Am. Fish. Soc. 
123:255-265. 
Rossiter, A., D. L. G. Noakes, and F. W. H. Beamish. 
1995. Validation of age estimation for the lake stur- 
geon. Trans. Am. Fish. Soc. 124:777-781. 
Stevenson, J. T., and D. H. Secor. 
1999. Age determination and growth of Hudson River 
Atlantic sturgeon, Acipenser oxyrinchus. Fish. Bull. 
98:153-166. 
Whiteman, K., V. H. Travnichek, M. L. Wildhaber, A. DeLonay, 
D. Papoulias, and D. Tillett. 
2004. Age estimation for shovelnose sturgeon: a cau- 
tionary note based on annulus formation in pectoral fin 
rays. N. Am. J. Fish. Manage. 24:731-734. 
