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Please use this identifier to cite or link to this item: http://hdl.handle.net/10793/1240

Title: Reproductive biology and parasite (Perkinsus marinus) prevalence in the eastern oyster, Crassostrea virginica, within a Georgia tidal river
Authors: O'Beirn, F.X.
Walker, R.L.
Jansen, M.L.
Keywords: Oyster
Crassostrea virginica
Recruitment
Disease
Reproduction
Environment
Issue Date: 1997
Publisher: Elisha Mitchell Scientific Society
Citation: O'Beirn, F.X., Walker R.L. and Jansen, M.L. (1997). Reproductive biology and parasite (Perkinsus marinus) prevalence in the eastern oyster, Crassostrea virginica, within a Georgia tidal river. Journal of the Elisha Mitchell Scientific Society, 113(1), pp. 22-36.
Series/Report no.: Journal of the Elisha Mitchell Scientific Society;113(1)
Abstract: Recruitment, in 1992, of the eastern oyster, Crassostrea virginica, at one site (Flume Dock) within the Sapelo Island National Estuarine Research Reserve (SINERR) was lower than other sampling sites. Recruitment allied with gametogenesis and parasite (Perkinsus marinus) prevalence within the oysters was examined in 1993, in an attempt to explain the differences observed the previous year. Sampling occurred at three sites (Marsh Landing, Jack Hammock, and Flume Dock) along the Duplin River within the SINERR. Oyster recruitment in 1993 was reduced in all sites within the SINERR. No oyster recruitment was recorded at the Flume Dock site during any monthly collections or on collectors deployed for the duration of the sampling study. Oysters developed gametogenically and spawned at the Marsh Landing site two weeks prior to their occurrence at the Jack Hammock site. Gametogenic development in oysters at the Flume Dock site was retarded a further two weeks where the males appeared to spawn six weeks after the females, which could account for reduced recruitment levels at this site. Approximately, twice as many females as males occurred in all sites. Monthly sampling of prevalence and intensity of Perkinsus marinus (Dermo) revealed high levels of both parameters. Smaller oysters did display lower prevalences of Dermo than larger forms.
Description: Peer-reviewed. © F.X. O'Beirn et al., 1997. Reproduced with the permission of the executive editor of the JNCAS.
URI: http://hdl.handle.net/10793/1240
ISSN: 0013-6220
Appears in Collections:Benthos Ecology

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