Shellfish Pathology

   The shellfish histopathology laboratory at HSRL is involved in research on various shellfish parasites and diseases such as Dermo (Perkinsus marinus) and MSX (Haplosporidium nelsoni). A recent study was conducted to investigate the development of MSX resistance in Delaware Bay oysters. Last year, over 200 oysters from China were examined as part of a histopathology survey of Chinese oysters to identify potential parasites and pathogens that might use Crassostrea ariakensis as a vector to spread to the east coast of North America if it is introduced. Other work includes a comparison study of Dermo disease in Delaware Bay and South Carolina estuaries, research on ciliate xenomas and methods for detecting Vibrio bacteria.

   The histopathology laboratory has provided diagnostic services for NJDEP, particularly with regard to QPX in hard clams and Perkinsus marinus in oysters, as well as to a variety of commercial shellfish operators needing certification of seed. Samples were also processed for New York/New Jersey Baykeeper, New Hampshire Fish and Wildlife Service, and the U.S. EPA.