James Luoma
James Luoma
Science and Products
Filter Total Items: 29
Efficacy of Pseudomonas fluorescens (Pf-CL145A) spray dried powder for controlling zebra mussels adhering to test substrates
A mobile bioassay trailer was used to assess the efficacy of Pseudomonas fluorescens (Pf-CL145A) spray dried powder (SDP) formulation for controlling zebra mussels (Dreissena polymorpha) from two midwestern lakes: Lake Carlos (Alexandria, Minnesota) and Shawano Lake (Shawano, Wisconsin). The effects of SDP exposure concentration and exposure duration on zebra mussel survival were evaluated along w
Authors
James A. Luoma, Todd J. Severson, Kerry L. Weber, Denise A. Mayer
Assessing consumption of bioactive micro-particles by filter-feeding Asian carp
Silver carp Hypophthalmichthys molitrix (SVC) and bighead carp H. nobilis (BHC) have impacted waters in the US since their escape. Current chemical controls for aquatic nuisance species are non-selective. Development of a bioactive micro-particle that exploits filter-feeding habits of SVC or BHC could result in a new control tool. It is not fully understood if SVC or BHC will consume bioactive mic
Authors
Nathan R. Jensen, Jon J. Amberg, James A. Luoma, Liza R. Walleser, Mark P. Gaikowski
Effects of water hardness on size and hatching success of silver carp eggs
Eggs of silver carp Hypophthalmichthys molitrix absorb water after release from the female, causing them to become turgid and to increase substantially in size. The volume of water that diffuses within an egg is most likely determined by (1) the difference in ionic concentration between the egg and the water that surrounds it and (2) the elasticity of the egg membrane. Prior observations suggest t
Authors
Jeff J. Rach, Greg G. Sass, James A. Luoma, Mark P. Gaikowski
Influences of dietary uptake and reactive sulfides on metal bioavailability from aquatic sediments
Understanding how animals are exposed to the large repository of metal pollutants in aquatic sediments is complicated and is important in regulatory decisions. Experiments with four types of invertebrates showed that feeding behavior and dietary uptake control bioaccumulation of cadmium, silver, nickel, and zinc. Metal concentrations in animal tissue correlated with metal concentrations extracted
Authors
B.-G. Lee, Sarah B. Griscom, H.J. Choi, C.-H. Koh, James A. Luoma, Nicholas S. Fisher
Acute toxicity and accumulation of the piscicide 3-trifluoromethyl-4-nitrophenol (TFM) in freshwater mussels (Bivalvia: Unionidae)
We compared the acute toxicity and initial accumulation of the piscicide TFM (3-trifluoromethyl-4-nitrophenol) in the freshwater unionacean mussels, Obliquaria reflexa and Fusconaia flava. Acute 48 h toxicity tests were conducted to determine the LC50 values for each species. The initial uptake clearances of TFM were measured by exposing the mussels to [14C]-TFM and counting the radioactivity in f
Authors
Diane L. Waller, Jeffrey J. Rach, James A. Luoma
Science and Products
Filter Total Items: 29
Efficacy of Pseudomonas fluorescens (Pf-CL145A) spray dried powder for controlling zebra mussels adhering to test substrates
A mobile bioassay trailer was used to assess the efficacy of Pseudomonas fluorescens (Pf-CL145A) spray dried powder (SDP) formulation for controlling zebra mussels (Dreissena polymorpha) from two midwestern lakes: Lake Carlos (Alexandria, Minnesota) and Shawano Lake (Shawano, Wisconsin). The effects of SDP exposure concentration and exposure duration on zebra mussel survival were evaluated along w
Authors
James A. Luoma, Todd J. Severson, Kerry L. Weber, Denise A. Mayer
Assessing consumption of bioactive micro-particles by filter-feeding Asian carp
Silver carp Hypophthalmichthys molitrix (SVC) and bighead carp H. nobilis (BHC) have impacted waters in the US since their escape. Current chemical controls for aquatic nuisance species are non-selective. Development of a bioactive micro-particle that exploits filter-feeding habits of SVC or BHC could result in a new control tool. It is not fully understood if SVC or BHC will consume bioactive mic
Authors
Nathan R. Jensen, Jon J. Amberg, James A. Luoma, Liza R. Walleser, Mark P. Gaikowski
Effects of water hardness on size and hatching success of silver carp eggs
Eggs of silver carp Hypophthalmichthys molitrix absorb water after release from the female, causing them to become turgid and to increase substantially in size. The volume of water that diffuses within an egg is most likely determined by (1) the difference in ionic concentration between the egg and the water that surrounds it and (2) the elasticity of the egg membrane. Prior observations suggest t
Authors
Jeff J. Rach, Greg G. Sass, James A. Luoma, Mark P. Gaikowski
Influences of dietary uptake and reactive sulfides on metal bioavailability from aquatic sediments
Understanding how animals are exposed to the large repository of metal pollutants in aquatic sediments is complicated and is important in regulatory decisions. Experiments with four types of invertebrates showed that feeding behavior and dietary uptake control bioaccumulation of cadmium, silver, nickel, and zinc. Metal concentrations in animal tissue correlated with metal concentrations extracted
Authors
B.-G. Lee, Sarah B. Griscom, H.J. Choi, C.-H. Koh, James A. Luoma, Nicholas S. Fisher
Acute toxicity and accumulation of the piscicide 3-trifluoromethyl-4-nitrophenol (TFM) in freshwater mussels (Bivalvia: Unionidae)
We compared the acute toxicity and initial accumulation of the piscicide TFM (3-trifluoromethyl-4-nitrophenol) in the freshwater unionacean mussels, Obliquaria reflexa and Fusconaia flava. Acute 48 h toxicity tests were conducted to determine the LC50 values for each species. The initial uptake clearances of TFM were measured by exposing the mussels to [14C]-TFM and counting the radioactivity in f
Authors
Diane L. Waller, Jeffrey J. Rach, James A. Luoma