Donald V. Lightner

TL;DR: The results from this study were used to establish the initial candidate SPF status of the animals that were assessed and to determine the prevalence of two serious pathogens of penaeid shrimp captured from the wild of the Pacific Ocean in the Central American region off the coast of Panama.

TL;DR: Infections were histologically characterized by expansion of lesions into the tissue surrounding the point of entry, destruction of invaded tissues by host granuloma formation and possibly by fungal enzymes and toxins, and hemocyte encapsulation of hyphae with eventual melanization of the encapsulating hemocytes.

TL;DR: The histopathogenesis of aflatoxicosis in the aflatoxin-exposed animals was followed and found to be time and dose dependent in the hepatopancreas, mandibular organ, and in the hematopoietic organs.

TL;DR: Before the cause of the Peru epizootic of PNHP was determined and corrective measures were taken, nearly half of Peru's 44 active shrimp farms had been so seriously affected that they were closed by June of 1993.

TL;DR: DNA probes readily distinguished PmSNPV-infected from uninfected shrimp tissue and did not react to shrimp infected with Baculovirus penaei (BP = Pv SNPV).