Myxobolus mauriensis n. sp. Infecting Rib Cartilage of Young-of-the-Year River Herring in New Jersey: Notes on Pathology, Prevalence, and Genetics

摘要: Abstract River herring populations, including Alosa pseudoharengus and aestivalis, have significantly declined as a result of anthropogenic factors throughout their range in eastern North America. To better understand the health species, parasite surveys were conducted several New Jersey rivers. A novel myxozoan parasite, Myxobolus mauriensis n. sp., is described infecting cartilage pleural ribs young-of-the-year fish. The forms large polysporic plasmodia forming pseudocysts within ribs, which extend into musculature. Pathology associated with infection includes costochondritis, breaks rib bones, deformed bone growth. Rupture release mature spores are myositis, dermatitis, peritonitis. Phylogenetic analysis reveals that M. sp. occurs long-branching clade basal to other myxobolids, grouping species from marine fish (Myxobolus groenlandicus, aeglefini, and...