Mark Gaikowski (Former Employee)
Science and Products
Filter Total Items: 73
Effectiveness of Aquaflor (50% florfenicol) administered in feed to control mortality associated with Streptococcus iniae in tilapia at a commercial tilapia production facility Effectiveness of Aquaflor (50% florfenicol) administered in feed to control mortality associated with Streptococcus iniae in tilapia at a commercial tilapia production facility
The efficacy of Aquaflor (florfenicol; FFC) to control mortality caused by Streptococcus iniae in tilapia was evaluated under field conditions. The trial was initiated following presumptive diagnosis of S. iniae infection in a mixed group of fingerling (mean, 4.5 g) Nile Tilapia Oreochromis niloticus and a hybrid of Nile Tilapia×Blue Tilapia O. aureus. Diagnoses included mortality in...
Authors
Mark P. Gaikowski, Susan M. Schleis, Eric Leis, Becky A. Lasee, Richard G. Endris
Depletion of eugenol residues from the skin-on fillet tissue of rainbow trout exposed to 14C-labeled eugenol Depletion of eugenol residues from the skin-on fillet tissue of rainbow trout exposed to 14C-labeled eugenol
The U.S. is lagging in access to an approved immediate-release sedative, i.e. a compound that can be safely and effectively used to sedate fish and has no withdrawal period. AQUI-S® 20E (10% active ingredient, eugenol) is under investigation as an immediate-release sedative for freshwater finfish. Because of its investigational status, data are needed to characterize the depletion...
Authors
Jeffery R. Meinertz, Theresa M. Schreier, Scott T. Porcher, Justin R. Smerud, Mark P. Gaikowski
Fathead minnow and bluegill sunfish life-stage responses to 17β-estradiol exposure in outdoor mesocosms Fathead minnow and bluegill sunfish life-stage responses to 17β-estradiol exposure in outdoor mesocosms
Developmental and reproductive effects of 17β-estradiol (E2) exposure on two generations of fathead minnows and one generation of bluegill sunfish were assessed. Fish were exposed to E2 for six continuous weeks in outdoor mesocosms simulating natural lake environments. First generation fish were exposed while sexually mature. Second generation fathead minnows were exposed either during...
Authors
Sarah M. Elliott, Richard L. Kiesling, Zachary G. Jorgenson, Daniel C. Rearick, Heiko L. Schoenfuss, Kim T. Fredricks, Mark P. Gaikowski
Spatial and temporal variation of the gill rakers of gizzard shad and silver carp in three Midwestern rivers Spatial and temporal variation of the gill rakers of gizzard shad and silver carp in three Midwestern rivers
Improved management of invasive Silver Carp Hypophthalmichthys molitrix in the upper Mississippi River basin may be possible by better understanding the feeding abilities of this population. Food collection for filter-feeding fishes, such as Silver Carp, is influenced by the species-specific structure of their gill rakers. To investigate structural variation in gill rakers of Silver Carp...
Authors
Liza R. Walleser, Mark B. Sandheinrich, David R. Howard, Mark P. Gaikowski, Jon J. Amberg
Fish gut microbiota analysis differentiates physiology and behavior of invasive Asian carp and indigenous American fish Fish gut microbiota analysis differentiates physiology and behavior of invasive Asian carp and indigenous American fish
Gut microbiota of invasive Asian silver carp (SVCP) and indigenous planktivorous gizzard shad (GZSD) in Mississippi river basin were compared using 16S rRNA gene pyrosequencing. Analysis of more than 440 000 quality-filtered sequences obtained from the foregut and hindgut of GZSD and SVCP revealed high microbial diversity in these samples. GZSD hindgut (GZSD_H) samples (n=23) with >7000
Authors
Lin Ye, Jon J. Amberg, Duane Chapman, Mark P. Gaikowski, Wen-Tso Liu
Detection of environmental DNA of Bigheaded Carps in samples collected from selected locations in the St. Croix River and in the Mississippi River Detection of environmental DNA of Bigheaded Carps in samples collected from selected locations in the St. Croix River and in the Mississippi River
The use of molecular methods, such as the detection of environmental deoxyribonucleic acid (eDNA), have become an increasingly popular tool in surveillance programs that monitor for the presence of invasive species in aquatic systems. One early application of these methods in aquatic systems was surveillance for DNA of Asian carps (specifically bighead carp Hypophthalmichthys nobilis and...
Authors
Jon J. Amberg, S. Grace McCalla, Loren Miller, Peter Sorensen, Mark P. Gaikowski
Science and Products
Filter Total Items: 73
Effectiveness of Aquaflor (50% florfenicol) administered in feed to control mortality associated with Streptococcus iniae in tilapia at a commercial tilapia production facility Effectiveness of Aquaflor (50% florfenicol) administered in feed to control mortality associated with Streptococcus iniae in tilapia at a commercial tilapia production facility
The efficacy of Aquaflor (florfenicol; FFC) to control mortality caused by Streptococcus iniae in tilapia was evaluated under field conditions. The trial was initiated following presumptive diagnosis of S. iniae infection in a mixed group of fingerling (mean, 4.5 g) Nile Tilapia Oreochromis niloticus and a hybrid of Nile Tilapia×Blue Tilapia O. aureus. Diagnoses included mortality in...
Authors
Mark P. Gaikowski, Susan M. Schleis, Eric Leis, Becky A. Lasee, Richard G. Endris
Depletion of eugenol residues from the skin-on fillet tissue of rainbow trout exposed to 14C-labeled eugenol Depletion of eugenol residues from the skin-on fillet tissue of rainbow trout exposed to 14C-labeled eugenol
The U.S. is lagging in access to an approved immediate-release sedative, i.e. a compound that can be safely and effectively used to sedate fish and has no withdrawal period. AQUI-S® 20E (10% active ingredient, eugenol) is under investigation as an immediate-release sedative for freshwater finfish. Because of its investigational status, data are needed to characterize the depletion...
Authors
Jeffery R. Meinertz, Theresa M. Schreier, Scott T. Porcher, Justin R. Smerud, Mark P. Gaikowski
Fathead minnow and bluegill sunfish life-stage responses to 17β-estradiol exposure in outdoor mesocosms Fathead minnow and bluegill sunfish life-stage responses to 17β-estradiol exposure in outdoor mesocosms
Developmental and reproductive effects of 17β-estradiol (E2) exposure on two generations of fathead minnows and one generation of bluegill sunfish were assessed. Fish were exposed to E2 for six continuous weeks in outdoor mesocosms simulating natural lake environments. First generation fish were exposed while sexually mature. Second generation fathead minnows were exposed either during...
Authors
Sarah M. Elliott, Richard L. Kiesling, Zachary G. Jorgenson, Daniel C. Rearick, Heiko L. Schoenfuss, Kim T. Fredricks, Mark P. Gaikowski
Spatial and temporal variation of the gill rakers of gizzard shad and silver carp in three Midwestern rivers Spatial and temporal variation of the gill rakers of gizzard shad and silver carp in three Midwestern rivers
Improved management of invasive Silver Carp Hypophthalmichthys molitrix in the upper Mississippi River basin may be possible by better understanding the feeding abilities of this population. Food collection for filter-feeding fishes, such as Silver Carp, is influenced by the species-specific structure of their gill rakers. To investigate structural variation in gill rakers of Silver Carp...
Authors
Liza R. Walleser, Mark B. Sandheinrich, David R. Howard, Mark P. Gaikowski, Jon J. Amberg
Fish gut microbiota analysis differentiates physiology and behavior of invasive Asian carp and indigenous American fish Fish gut microbiota analysis differentiates physiology and behavior of invasive Asian carp and indigenous American fish
Gut microbiota of invasive Asian silver carp (SVCP) and indigenous planktivorous gizzard shad (GZSD) in Mississippi river basin were compared using 16S rRNA gene pyrosequencing. Analysis of more than 440 000 quality-filtered sequences obtained from the foregut and hindgut of GZSD and SVCP revealed high microbial diversity in these samples. GZSD hindgut (GZSD_H) samples (n=23) with >7000
Authors
Lin Ye, Jon J. Amberg, Duane Chapman, Mark P. Gaikowski, Wen-Tso Liu
Detection of environmental DNA of Bigheaded Carps in samples collected from selected locations in the St. Croix River and in the Mississippi River Detection of environmental DNA of Bigheaded Carps in samples collected from selected locations in the St. Croix River and in the Mississippi River
The use of molecular methods, such as the detection of environmental deoxyribonucleic acid (eDNA), have become an increasingly popular tool in surveillance programs that monitor for the presence of invasive species in aquatic systems. One early application of these methods in aquatic systems was surveillance for DNA of Asian carps (specifically bighead carp Hypophthalmichthys nobilis and...
Authors
Jon J. Amberg, S. Grace McCalla, Loren Miller, Peter Sorensen, Mark P. Gaikowski