Virginia Institute of Marine Science
Journal of Shellfish Research
A~u1t Crass~strea virgi.nic~ ~Gmelin) were examined during the reproductive season of 1986 to determine temporal and spatial vanation m fecundity among md!Vldual female oysters from four reefs in the James River, Virginia. Sex ratio and oyster abu.ndance were. ~so determined to :acilitate ~s~imation of total reproductive output of oyster assemblages. Fecundity was highly vanable, both w1thm and among locations. Vanation was attributed to differences in oyster size, asynchrony and variation in time since pri~r spawning, prevalence of parasites (especially Haplosporidium nelsoni (MSX) and Perkinsus marinus) and differing salinity regimes.
oysters, Crassostrea, fecundity, reproduction, James River
Cox, Carrollyn and Mann, Roger L., Temporal and spatial changes in fecundity of eastern oysters, Crassostrea virginica (Gmelin, 1791) in the James River, Virginia (1992). Journal of Shellfish Research, 11(1), 49-54.