| two perkinsus spp. infect crassostrea gasar oysters from cultured and wild populations of the rio são francisco estuary, sergipe, northeastern brazil. | brazilian production of bivalve molluscs is small but expanding, especially in the northeastern region where the native oysters crassostrea rhizophorae and c. gasar are abundant, and tropical weather promotes their rapid growth. studies on bivalve pathology are scarce in brazil, with only a few employing techniques for detecting protozoan pathogens listed by the world organisation for animal health (oie). in 2008, a perkinsus sp. was reported for the first time in brazil, infecting c. rhizophora ... | 2014 | 24780219 |