Christine Densmore (Former Employee)
Science and Products
Filter Total Items: 44
Histopathology of repeated, intermittent exposure of chloramine-T to walleye (Sander vitreum) and (Ictalurus punctalus) channel catfish Histopathology of repeated, intermittent exposure of chloramine-T to walleye (Sander vitreum) and (Ictalurus punctalus) channel catfish
Chloramine-T (Cl-T) has been used safely and effectively to control bacterial gill disease in salmonids at a maximum exposure regimen of up to four consecutive, once-daily exposures administered for 60??min at 20??mg/L. However, data to document safe treatment concentrations of Cl-T are lacking for freshwater-reared fish other than salmonids. We report the histopathology resultant from...
Authors
M.P. Gaikowski, Christine L. Densmore, V. S. Blazer
Diseases of amphibians Diseases of amphibians
The development and refinement of amphibian medicine comprise an ongoing science that reflects the unique life history of these animals and our growing knowledge of amphibian diseases. Amphibians are notoriously fastidious in terms of captive care requirements, and the majority of diseases of amphibians maintained in captivity will relate directly or indirectly to husbandry and...
Authors
Christine L. Densmore, David E. Green
Synthesis of U.S. Geological Survey science for the Chesapeake Bay ecosystem and implications for environmental management Synthesis of U.S. Geological Survey science for the Chesapeake Bay ecosystem and implications for environmental management
The purpose of this report is to present a synthesis of the USGS Chesapeake Bay science related to the 2001-06 goals and provide implications for environmental management. The report provides USGS findings that address the science needs of the Chesapeake Bay Program (CBP) restoration goals and includes summaries of 1. land-use change; 2. water quality in the watershed, including...
Authors
Scott W. Ator, Vicki S. Blazer, John W. Brakebill, Donald R. Cahoon, Peter R. Claggett, Thomas M. Cronin, Judith M. Denver, Christine L. Densmore, Allen C. Gellis, Cliff R. Hupp, Jurate M. Landwehr, Michael J. Langland, Christopher A. Ottinger, Milan J. Pavich, Matthew C. Perry, Scott W. Phillips, Stephen D. Preston, Jeff P. Raffensperger, Barnett A. Rattner, Nancy B. Rybicki, Debra A. Willard
Mycobacterial infections in striped bass from Delaware Bay Mycobacterial infections in striped bass from Delaware Bay
Eighty striped bass Morone saxatilis were obtained from Delaware Bay using commercial gill nets set adjacent to Woodland Beach (n = 70) and Bowers Beach (n = 10) in December 2003. Fish were examined for gross lesions. Total lengths (TLs) and eviscerated weights were determined to calculate condition factors (K). Portions of spleens were aseptically harvested for bacterial culture, and...
Authors
C. A. Ottinger, J.J. Brown, Christine L. Densmore, C. E. Starliper, V. S. Blazer, H.S. Weyers, K.A. Beauchamp, M. W. Rhodes, H. Kator, David T. Gauthier, W. K. Vogelbein
Mycobacteriosis in Chesapeake Bay Striped Bass (Morone saxatilis) Mycobacteriosis in Chesapeake Bay Striped Bass (Morone saxatilis)
No abstract available.
Authors
Christopher A. Ottinger, Vicki S. Blazer, Christine L. Densmore, David T. Gauthier, H. Kator, F. M. Panek, M. W. Rhodes, W. Vogelbein
Calcein AM release-based cytotoxic cell assay for fish leucocytes Calcein AM release-based cytotoxic cell assay for fish leucocytes
A non-specific cytotoxic cell assay for fish is presented that is based on the release of the activated fluorochrome calcein AM from lysed carp epithelioma papulosum cyprini (EPC) cells. To establish the suitability of treating EPC cells with calcein AM the uptake and spontaneous release of the calcein AM by the EPC cells was evaluated. Incubation of 5 μM calcein AM in culture medium...
Authors
Luke R. Iwanowicz, Christine L. Densmore, Christopher A. Ottinger
Science and Products
Filter Total Items: 44
Histopathology of repeated, intermittent exposure of chloramine-T to walleye (Sander vitreum) and (Ictalurus punctalus) channel catfish Histopathology of repeated, intermittent exposure of chloramine-T to walleye (Sander vitreum) and (Ictalurus punctalus) channel catfish
Chloramine-T (Cl-T) has been used safely and effectively to control bacterial gill disease in salmonids at a maximum exposure regimen of up to four consecutive, once-daily exposures administered for 60??min at 20??mg/L. However, data to document safe treatment concentrations of Cl-T are lacking for freshwater-reared fish other than salmonids. We report the histopathology resultant from...
Authors
M.P. Gaikowski, Christine L. Densmore, V. S. Blazer
Diseases of amphibians Diseases of amphibians
The development and refinement of amphibian medicine comprise an ongoing science that reflects the unique life history of these animals and our growing knowledge of amphibian diseases. Amphibians are notoriously fastidious in terms of captive care requirements, and the majority of diseases of amphibians maintained in captivity will relate directly or indirectly to husbandry and...
Authors
Christine L. Densmore, David E. Green
Synthesis of U.S. Geological Survey science for the Chesapeake Bay ecosystem and implications for environmental management Synthesis of U.S. Geological Survey science for the Chesapeake Bay ecosystem and implications for environmental management
The purpose of this report is to present a synthesis of the USGS Chesapeake Bay science related to the 2001-06 goals and provide implications for environmental management. The report provides USGS findings that address the science needs of the Chesapeake Bay Program (CBP) restoration goals and includes summaries of 1. land-use change; 2. water quality in the watershed, including...
Authors
Scott W. Ator, Vicki S. Blazer, John W. Brakebill, Donald R. Cahoon, Peter R. Claggett, Thomas M. Cronin, Judith M. Denver, Christine L. Densmore, Allen C. Gellis, Cliff R. Hupp, Jurate M. Landwehr, Michael J. Langland, Christopher A. Ottinger, Milan J. Pavich, Matthew C. Perry, Scott W. Phillips, Stephen D. Preston, Jeff P. Raffensperger, Barnett A. Rattner, Nancy B. Rybicki, Debra A. Willard
Mycobacterial infections in striped bass from Delaware Bay Mycobacterial infections in striped bass from Delaware Bay
Eighty striped bass Morone saxatilis were obtained from Delaware Bay using commercial gill nets set adjacent to Woodland Beach (n = 70) and Bowers Beach (n = 10) in December 2003. Fish were examined for gross lesions. Total lengths (TLs) and eviscerated weights were determined to calculate condition factors (K). Portions of spleens were aseptically harvested for bacterial culture, and...
Authors
C. A. Ottinger, J.J. Brown, Christine L. Densmore, C. E. Starliper, V. S. Blazer, H.S. Weyers, K.A. Beauchamp, M. W. Rhodes, H. Kator, David T. Gauthier, W. K. Vogelbein
Mycobacteriosis in Chesapeake Bay Striped Bass (Morone saxatilis) Mycobacteriosis in Chesapeake Bay Striped Bass (Morone saxatilis)
No abstract available.
Authors
Christopher A. Ottinger, Vicki S. Blazer, Christine L. Densmore, David T. Gauthier, H. Kator, F. M. Panek, M. W. Rhodes, W. Vogelbein
Calcein AM release-based cytotoxic cell assay for fish leucocytes Calcein AM release-based cytotoxic cell assay for fish leucocytes
A non-specific cytotoxic cell assay for fish is presented that is based on the release of the activated fluorochrome calcein AM from lysed carp epithelioma papulosum cyprini (EPC) cells. To establish the suitability of treating EPC cells with calcein AM the uptake and spontaneous release of the calcein AM by the EPC cells was evaluated. Incubation of 5 μM calcein AM in culture medium...
Authors
Luke R. Iwanowicz, Christine L. Densmore, Christopher A. Ottinger
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