| systematic evaluation of factors controlling perkinsus marinus transmission dynamics in lower chesapeake bay. | the transmission of perkinsus marinus in eastern oysters crassostrea virginica in relation to water temperature, host oyster mortality, and water-column abundance of anti-p. marinus antibody-labeled cells was systematically examined for 20 mo at a site in the lower york river, virginia, usa. uninfected sentinel oysters were naturally exposed to the parasite at 2 wk intervals throughout the course of the study to determine the periodicity and rates of parasite transmission. the timing and magnitu ... | 2003 | 14524504 |
| further evidence of regular sporulation by haplosporidium nelsoni in small oysters, crassostrea virginica. | during a field study to determine the susceptibility of the pacific oyster crassostrea gigas to chesapeake bay oyster pathogens, sporulation of haplosporidium nelsoni was observed in eastern oysters crassostrea virginica being used as controls. the c. virginica were obtained from 2 sources on 19 may 1993, a wild population in the upper rappahannock river, virginia (59.6 mm mean shell height) and a hatchery-reared population from chesapeake mari-culture that was held in the wye river, maryland (4 ... | 1994 | 7799147 |