Theresa Schreier
Theresa Schreier
Science and Products
Filter Total Items: 28
Depletion of isoeugenol residues from the fillet tissue of AQUI-S™ exposed rainbow trout (Oncorhynchus mykiss)
There is a critical need in U.S. public aquaculture and fishery management for an approved sedative that allows for the immediate release of fish after sedation. AQUI-STM is a fish anesthetic/sedative approved for use in several countries and until recently was being developed in the U.S. as a sedative for immediate release of fish after sedation. The U.S. National Toxicology Program reported that
Authors
Jeffery R. Meinertz, Theresa M. Schreier
Effectiveness of piscicides for controlling round gobies (Neogobius melanostomus)
Round gobies (Neogobius melanostomus) were introduced to the Great Lakes presumably as a result of ballast water releases from seagoing freighters returning from European water bodies. These unwelcome fish have become established in the Great Lakes region and are expanding their range to suitable portions of other interior drainage basins including the Mississippi River traversing the central Unit
Authors
Theresa M. Schreier, V. K. Dawson, W. Larson
Evaluation of a method for determining concentrations of isoeugenol, an AQUI-S residue, in fillet tissue from freshwater fish species.
AQUI-S is a fish anesthetic/sedative that is approved for use in a number of countries throughout the world and has the potential for use in the United States. The active ingredient in AQUI-S is isoeugenol. A method for determining isoeugenol concentrations in edible fillet tissue is needed for regulatory purposes, including surveillance and potential use in studies fulfilling human food safety da
Authors
J.R. Meinertz, Theresa M. Schreier, J.A. Bernardy
Safety of fish therapeutants to glochidia of the plain pocketbook mussel during encystment on largemouth bass
Mussel biologists and fisheries managers have developed propagation techniques to duplicate the natural glochidia infestation on host fish. However, in intensive culture situations, fish diseases may threaten the survival of both fish and their attached glochidia and chemical treatments may be required to control a disease epizootic. Five therapeutants were evaluated for their safety to largemouth
Authors
J.J. Rach, T. Brady, Theresa M. Schreier, D. Aloisi
Isoeugenol concentrations in rainbow trout (Oncorhynchus mykiss) skin-on fillet tissue after exposure to AQUI-S™ at different temperatures, durations, and concentrations
AQUI-S™ is a fish anesthetic/sedative approved for use in several countries including Australia, Chile, and New Zealand and is being pursued for use in the United States. Legal use of AQUI-S™ as an anesthetic in U.S. fish culture depends on approval by the U.S. Food and Drug Administration (FDA). To gain approval in the United States, a number of drug attributes must be characterized including (1)
Authors
Jeffery R. Meinertz, Shari L. Greseth, Theresa M. Schreier, Jeffry A. Bernardy, William H. Gingerich
Residues of the lampricides 3-trifluoromethyl-4-nitrophenol and niclosamide in muscle tissue of rainbow trout
Rainbow trout (Oncorhyncus mykiss) were exposed to the 14C- labeled lampricide 3-trifluoromethyl-4-nitrophenol (TFM) (2.1 mg/L) or niclosamide (0.055 mg/L) in an aerated static water bath for 24 h. Fish were sacrificed immediately after exposure. Subsamples of skin-on muscle tissue were analyzed for residues of the lampricides. The primary residues in muscle tissue from fish exposed to TFM were pa
Authors
T.D. Hubert, J.A. Bernardy, C. Vue, V. K. Dawson, M.A. Boogaard, Theresa M. Schreier, W.H. Gingerich
Efficacy of formalin and hydrogen peroxide to increase survival of channel catfish infected with saprolegniasis
The efficacy of formalin and hydrogen peroxide to increase survival associated with external saprolegniasis on fingerlings of channel catfish Ictalurus punctatus was evaluated in four laboratory trials. Fungal epizootics were initiated according to procedures developed in a fungal-disease model. Fish were abraded with a dremel tool and then placed in an aerated static infection tank containing fun
Authors
Jeff J. Rach, Theresa M. Schreier, Mark P. Gaikowski, Susan M. Schleis
Efficacy of hydrogen peroxide to control saprolegniasis on channel catfish (Ictalurus punctatus) eggs
The efficacy of hydrogen peroxide to control mortality associated with saprolegniasis in channel catfish (Ictalurus punctatus) eggs was evaluated at the Lost Valley State Fish Hatchery (Warsaw, MO). Two efficacy trials were conducted. In Trial 1, channel catfish eggs in their natural gelatinous matrix were treated with hydrogen peroxide at 0, 500, and 750 mg l(-1). Channel catfish eggs in Trial 2
Authors
J.J. Rach, J.J. Valentine, Theresa M. Schreier, M.P. Gaikowski, T.G. Crawford
Rapid loss of lampricide from catfish and rainbow trout following routine treatment
Rainbow trout (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) were exposed to 3-trifluoromethyl-4-nitrophenol (TFM) and Bayluscide (niclosamide) during a sea lamprey control treatment of the Ford River, located in the upper peninsula of Michigan. Caged fish were exposed to a nominal concentration of 0.02 mg/L of niclosamide for a period of approximately 12 h. Samples of fillet tiss
Authors
V. K. Dawson, Theresa M. Schreier, M.A. Boogaard, N.J. Spanjers, W.H. Gingerich
Determination of niclosamide residues in rainbow trout (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) fillet tissue by high-performance liquid chromatography
Bayluscide [the ethanolamine salt of niclosamide (NIC)] is a registered piscicide used in combination with 3-(trifluoromethyl)-4-nitrophenol (TFM) to control sea lamprey populations in streams tributary to the Great Lakes. A high-performance liquid chromatography (HPLC) method was developed for the determination of NIC residues in muscle fillet tissues of fish exposed to NIC and TFM during sea lam
Authors
Theresa M. Schreier, V. K. Dawson, Yirang Cho, N.J. Spanjers, M.A. Boogaard
Evaluation of the toxicity and efficacy of hydrogen peroxide treatments on eggs of warm- and coolwater fishes
The use of hydrogen peroxide in aquaculture is growing and there is a need to develop fundamental guidelines to effectively treat diseased fish. The safety (toxicity) of hydrogen peroxide treatments was determined on eggs of representative warm- and coolwater fish species. Eggs of northern pike (Esox lucius), walleye (Stizostedion vitreum), yellow perch (Perca flavescens), white sucker (Catostomus
Authors
Jeffrey J. Rach, Mark P. Gaikowski, George E. Howe, Theresa M. Schreier
Safety of formalin treatments on warm- and coolwater fish eggs
Formalin is widely used for treating fungal infections of fish eggs in intensive aquaculture operations. The use of formalin in the United States is only allowed on salmonid and esocid eggs unless a special exemption is granted for use on other species. This study was conducted to determine the safety of formalin treatments on eggs of representative warm- and coolwater fish species and data was us
Authors
Jeff J. Rach, George E. Howe, Theresa M. Schreier
Science and Products
Filter Total Items: 28
Depletion of isoeugenol residues from the fillet tissue of AQUI-S™ exposed rainbow trout (Oncorhynchus mykiss)
There is a critical need in U.S. public aquaculture and fishery management for an approved sedative that allows for the immediate release of fish after sedation. AQUI-STM is a fish anesthetic/sedative approved for use in several countries and until recently was being developed in the U.S. as a sedative for immediate release of fish after sedation. The U.S. National Toxicology Program reported that
Authors
Jeffery R. Meinertz, Theresa M. Schreier
Effectiveness of piscicides for controlling round gobies (Neogobius melanostomus)
Round gobies (Neogobius melanostomus) were introduced to the Great Lakes presumably as a result of ballast water releases from seagoing freighters returning from European water bodies. These unwelcome fish have become established in the Great Lakes region and are expanding their range to suitable portions of other interior drainage basins including the Mississippi River traversing the central Unit
Authors
Theresa M. Schreier, V. K. Dawson, W. Larson
Evaluation of a method for determining concentrations of isoeugenol, an AQUI-S residue, in fillet tissue from freshwater fish species.
AQUI-S is a fish anesthetic/sedative that is approved for use in a number of countries throughout the world and has the potential for use in the United States. The active ingredient in AQUI-S is isoeugenol. A method for determining isoeugenol concentrations in edible fillet tissue is needed for regulatory purposes, including surveillance and potential use in studies fulfilling human food safety da
Authors
J.R. Meinertz, Theresa M. Schreier, J.A. Bernardy
Safety of fish therapeutants to glochidia of the plain pocketbook mussel during encystment on largemouth bass
Mussel biologists and fisheries managers have developed propagation techniques to duplicate the natural glochidia infestation on host fish. However, in intensive culture situations, fish diseases may threaten the survival of both fish and their attached glochidia and chemical treatments may be required to control a disease epizootic. Five therapeutants were evaluated for their safety to largemouth
Authors
J.J. Rach, T. Brady, Theresa M. Schreier, D. Aloisi
Isoeugenol concentrations in rainbow trout (Oncorhynchus mykiss) skin-on fillet tissue after exposure to AQUI-S™ at different temperatures, durations, and concentrations
AQUI-S™ is a fish anesthetic/sedative approved for use in several countries including Australia, Chile, and New Zealand and is being pursued for use in the United States. Legal use of AQUI-S™ as an anesthetic in U.S. fish culture depends on approval by the U.S. Food and Drug Administration (FDA). To gain approval in the United States, a number of drug attributes must be characterized including (1)
Authors
Jeffery R. Meinertz, Shari L. Greseth, Theresa M. Schreier, Jeffry A. Bernardy, William H. Gingerich
Residues of the lampricides 3-trifluoromethyl-4-nitrophenol and niclosamide in muscle tissue of rainbow trout
Rainbow trout (Oncorhyncus mykiss) were exposed to the 14C- labeled lampricide 3-trifluoromethyl-4-nitrophenol (TFM) (2.1 mg/L) or niclosamide (0.055 mg/L) in an aerated static water bath for 24 h. Fish were sacrificed immediately after exposure. Subsamples of skin-on muscle tissue were analyzed for residues of the lampricides. The primary residues in muscle tissue from fish exposed to TFM were pa
Authors
T.D. Hubert, J.A. Bernardy, C. Vue, V. K. Dawson, M.A. Boogaard, Theresa M. Schreier, W.H. Gingerich
Efficacy of formalin and hydrogen peroxide to increase survival of channel catfish infected with saprolegniasis
The efficacy of formalin and hydrogen peroxide to increase survival associated with external saprolegniasis on fingerlings of channel catfish Ictalurus punctatus was evaluated in four laboratory trials. Fungal epizootics were initiated according to procedures developed in a fungal-disease model. Fish were abraded with a dremel tool and then placed in an aerated static infection tank containing fun
Authors
Jeff J. Rach, Theresa M. Schreier, Mark P. Gaikowski, Susan M. Schleis
Efficacy of hydrogen peroxide to control saprolegniasis on channel catfish (Ictalurus punctatus) eggs
The efficacy of hydrogen peroxide to control mortality associated with saprolegniasis in channel catfish (Ictalurus punctatus) eggs was evaluated at the Lost Valley State Fish Hatchery (Warsaw, MO). Two efficacy trials were conducted. In Trial 1, channel catfish eggs in their natural gelatinous matrix were treated with hydrogen peroxide at 0, 500, and 750 mg l(-1). Channel catfish eggs in Trial 2
Authors
J.J. Rach, J.J. Valentine, Theresa M. Schreier, M.P. Gaikowski, T.G. Crawford
Rapid loss of lampricide from catfish and rainbow trout following routine treatment
Rainbow trout (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) were exposed to 3-trifluoromethyl-4-nitrophenol (TFM) and Bayluscide (niclosamide) during a sea lamprey control treatment of the Ford River, located in the upper peninsula of Michigan. Caged fish were exposed to a nominal concentration of 0.02 mg/L of niclosamide for a period of approximately 12 h. Samples of fillet tiss
Authors
V. K. Dawson, Theresa M. Schreier, M.A. Boogaard, N.J. Spanjers, W.H. Gingerich
Determination of niclosamide residues in rainbow trout (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) fillet tissue by high-performance liquid chromatography
Bayluscide [the ethanolamine salt of niclosamide (NIC)] is a registered piscicide used in combination with 3-(trifluoromethyl)-4-nitrophenol (TFM) to control sea lamprey populations in streams tributary to the Great Lakes. A high-performance liquid chromatography (HPLC) method was developed for the determination of NIC residues in muscle fillet tissues of fish exposed to NIC and TFM during sea lam
Authors
Theresa M. Schreier, V. K. Dawson, Yirang Cho, N.J. Spanjers, M.A. Boogaard
Evaluation of the toxicity and efficacy of hydrogen peroxide treatments on eggs of warm- and coolwater fishes
The use of hydrogen peroxide in aquaculture is growing and there is a need to develop fundamental guidelines to effectively treat diseased fish. The safety (toxicity) of hydrogen peroxide treatments was determined on eggs of representative warm- and coolwater fish species. Eggs of northern pike (Esox lucius), walleye (Stizostedion vitreum), yellow perch (Perca flavescens), white sucker (Catostomus
Authors
Jeffrey J. Rach, Mark P. Gaikowski, George E. Howe, Theresa M. Schreier
Safety of formalin treatments on warm- and coolwater fish eggs
Formalin is widely used for treating fungal infections of fish eggs in intensive aquaculture operations. The use of formalin in the United States is only allowed on salmonid and esocid eggs unless a special exemption is granted for use on other species. This study was conducted to determine the safety of formalin treatments on eggs of representative warm- and coolwater fish species and data was us
Authors
Jeff J. Rach, George E. Howe, Theresa M. Schreier