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Full-Text Articles in Life Sciences
Mycobacterial Infections In Striped Bass (Morone Saxatilis) From Delaware Bay, Christopher A. Ottinger, J. Jed Brown, Et Al, Martha Rhodes, Howard Kator, David T. Gauthier, Wolfgang K. Vogelbein
Mycobacterial Infections In Striped Bass (Morone Saxatilis) From Delaware Bay, Christopher A. Ottinger, J. Jed Brown, Et Al, Martha Rhodes, Howard Kator, David T. Gauthier, Wolfgang K. Vogelbein
VIMS Books and Book Chapters
Much of what is known of mycobacteriosis in wild striped bass from the mid-Atlantic region of the United States is based on our observations from Chesapeake Bay and its tributaries, where high infection prevalence and lesioned fish are frequently observed. Comparatively, the occurrence and severity of mycobacteriosis in striped bass from watersheds adjacent to Chesapeake Bay are relatively unknown. This study represents the first report on mycobacterial infection in striped bass harvested from two sites in Delaware Bay.
Epizootic Mycobacteriosis In Chesapeake Bay Striped Bass: What Is The Fate Of Infected Fish?, Wolfgang K. Vogelbein, John M. Hoenig, David T. Gauthier
Epizootic Mycobacteriosis In Chesapeake Bay Striped Bass: What Is The Fate Of Infected Fish?, Wolfgang K. Vogelbein, John M. Hoenig, David T. Gauthier
VIMS Books and Book Chapters
Striped bass (Morone saxatilis) in Chesapeake Bay, USA, are currently experiencing an epizootic of mycobacteriosis. Visceral disease prevalence in resident fish exceeds 50% and prevalence of skin ulcers can exceed 30% in some areas. Two primary hypotheses regarding emergence of this chronic bacterial disease propose that anthropogenic stressors constitute important underlying modulating factors
The Ecology Of Mycobacteria Infecting Striped Bass (Morone Saxatilis) In Chesapeake Bay: A Research Plan, Howard Kator, Martha Rhodes, David Gauthier
The Ecology Of Mycobacteria Infecting Striped Bass (Morone Saxatilis) In Chesapeake Bay: A Research Plan, Howard Kator, Martha Rhodes, David Gauthier
VIMS Books and Book Chapters
The ecology of mycobacteria in estuarine and marine waters remains poorly understood. The current epizootic in Chesapeake Bay striped bass and newly described pathogens Mycobacterium shottsii and M. pseudoshottsii raise ecological questions that if answered can improve our understanding of the pathogenesis of mycobacteriosis in this fish species.
Epizootiology Of Mycobacteriosis In Chesapeake Bay Striped Bass (Morone Saxatilis): Large-Scale Field Survey, David T. Gauthier, Robert Latour, Wolfgang K. Vogelbein
Epizootiology Of Mycobacteriosis In Chesapeake Bay Striped Bass (Morone Saxatilis): Large-Scale Field Survey, David T. Gauthier, Robert Latour, Wolfgang K. Vogelbein
VIMS Books and Book Chapters
Striped bass in Virginia and Maryland waters of Chesapeake Bay are experiencing an ongoing epizootic of mycobacteriosis. Visceral disease prevalence exceeding 50% has been reported in several locations by various authors, and skin lesion prevalence exceeding 30% has been observed. The high prevalence of skin lesions observed in Chesapeake Bay striped bass is unusual and has not, to our knowledge, been reported previously in wild fishes.
Use Of Immunoassays In Haplosporidan Life Cycle Studies, Eugene M. Burreson
Use Of Immunoassays In Haplosporidan Life Cycle Studies, Eugene M. Burreson
VIMS Books and Book Chapters
The development of mitigating measures for the major oyster diseases has been hindered by our poor understanding of the life cycles of the pathogens. Evidence from epidemiological studies and transmission experiments suggests that an intermediate host is present in the life cycle of Haplosporidium species. Immunoassay is a valuable tool for identifying parasite antigen in an intermediate host, and, because of the potential for stage-specific antigens, assays incorporating polyclonal antibodies may be more effective than assays incorporating monoclonal antibodies. Rabbit antibody against purified spores of Haplosporidium costale recognized spores in paraffin sections of oyster tissue , but the antibody did …
Uncertainties And Speculations About The Life Cycle Of The Eastern Oyster Pathogen Haplosporidium Nelsoni (Msx), Harold H. Haskins, Jay D. Andrews
Uncertainties And Speculations About The Life Cycle Of The Eastern Oyster Pathogen Haplosporidium Nelsoni (Msx), Harold H. Haskins, Jay D. Andrews
VIMS Books and Book Chapters
For 30 years, the pathogen Haplosporidium nelsoni (MSX) has been causing serious mortalities of eastern oysters Crassostrea virginica in the Delaware and Chesapeake bays of the eastern USA. Its life cycle is largely unknown, and methods for control are wanting. Breeding of resistant eastern oyster strains, at this time, offers the best hope for some degree of control of the disease. Although haplosporidians are known by their spores, controlled transmission, with one possible exception, has not been achieved in any of the 30 recognized species. Haplosporidium nelsoni rarely sporulates in eastern oysters, and this and other observations led to early …
Structure Of Protistan Parasites Found In Bivalve Molluscs, Frank O. Perkins
Structure Of Protistan Parasites Found In Bivalve Molluscs, Frank O. Perkins
VIMS Books and Book Chapters
The literature on the structure of protists parasitizing bivalve molluscs is reviewed, and previously unpublished observations of species of class Perkinsea , phylum Haplosporidia, and class Paramyxea are presented. Descriptions are given of the flagellar apparatus of Perkinsus marinus zoospores, the ultrastructure of Perkinsus sp. from the Baltic macoma Macoma balthica, and the development of haplosporosome-like bodies in Haplosporidium nelsoni. The possible origin of stem cells of Marrteilia sydneyi from the inner two sporoplasms is discussed. New research efforts are suggested which could help elucidate the phylogenetic interrelationships and taxonomic positions of the various taxa and help in efforts to …
Epizootiology Of The Disease Caused By The Oyster Pathogen Perkinsus Marinus And Its Effects On The Oyster Industry, Jay D. Andrews
Epizootiology Of The Disease Caused By The Oyster Pathogen Perkinsus Marinus And Its Effects On The Oyster Industry, Jay D. Andrews
VIMS Books and Book Chapters
Perkinsus marinus is a protozoan parasite that causes a major disease of eastern oysters Crassostrea virginica from Chesapeake Bay south along the Atlantic coast of the USA and throughout the Gulf of Mexico. It is a warm-season disease that kills eastern oysters at temperatures above 20°C. The pathogen requires salinities of at least 12-15%0 to be active, but it persists tenaciously when low temperatures and salinities occur during winter and spring. Prolonged droughts that increase salinities cause extensions of the range of disease. In the Chesapeake Bay, mortalities begin in June and end in October, and up to 50% of …