
Perkinsus marinus
Perkinsus marinus is a microscopic parasite that infects oysters, particularly the eastern oyster (Crassostrea virginica). This organism invades oyster tissues, causing disease known as Dermo, which impairs the oyster's ability to feed, grow, and reproduce. The infection can lead to shell collapse and death, significantly impacting oyster populations and the aquaculture industry. The parasite spreads through contaminated water and is influenced by environmental factors like temperature and salinity. Managing Perkinsus marinus is important for maintaining healthy oyster ecosystems and sustainable fisheries.