NIR spectroscopy spectra were collected on freeze dried samples and P. Oysters were subsampled monthly for 7вЂЇmonths and diagnosed for the presence and intensity of acquired infections. During the natural infection study, oysters from the upper portion of the Rappahannock River were transferred to the York River, where P. NIR spectroscopy spectra were collected on these preparations as is (wet) and after freeze drying (dry). virginica slurries were spiked with known concentrations of cultured P. During the spike experiment, pathogen-free, homogenized C. marinus вЂњspikeвЂќ experiment and a natural infection study. In order to accomplish this, two experiments were performed: a P. During this study, the NIR spectroscopy technology was used to test the feasibility of an alternative means of quantitative detection of P. marinus level of infection may be of great interest to assess, along with other biochemical parameters, oyster's general condition and also characterize oysters that present resistance or tolerance to this problematic parasite. Adding another parameter such as determination of P. Near infrared reflectance (NIR) spectroscopy is a technology that allows measurements of multiple biochemical components at the same time, providing extensive information for every tested sample using a single, high throughput, rapid assay. Disease caused by the protozoan parasite Perkinsus marinus remains a challenge for fisheries and aquaculture of the eastern oyster, Crassostrea virginica.

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