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Biological Sciences Peer-Reviewed Articles

1962

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Oyster Mortality Studies In Virginia: Ill. Epizootiology Of A Disease Caused By Haplosporidium Costale Wood And Andrews, Jay D. Andrews, Johon L. Wood, H. Dickson Hoese Jan 1962

Oyster Mortality Studies In Virginia: Ill. Epizootiology Of A Disease Caused By Haplosporidium Costale Wood And Andrews, Jay D. Andrews, Johon L. Wood, H. Dickson Hoese

VIMS Articles

A short, sharp eplzootic disease of oysters on Seaside of Eastern Shore, Virginia, has been associated with a new pathogen, Haplosporidium costale Wood and Andrews. Native oysters in trays have shown closely timed May-June losses for three consecutive years. Losses at other seasons were small. May-June losses ranged from 12 to 14 percent in 1959 to 36 to 44 percent in 1960. James River oysters moved to Seaside showed higher losses than natives after a year of acclimation. Oysters in Bayside creeks revealed late summer losses caused by Dermocystidimn marinmn Mackin, Owens, and Collier rather than May-June deaths.

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