Brent Knights (Former Employee)
Science and Products
Filter Total Items: 50
Movement and habitat use by radio-tagged paddlefish in the upper Mississippi River and tributaries Movement and habitat use by radio-tagged paddlefish in the upper Mississippi River and tributaries
We used radio telemetry to evaluate the movement and habitat use of paddlefish Polyodon spathula in the upper Mississippi River and two tributary rivers. Radio transmitters were surgically implanted into 71 paddlefish in Navigation Pools 5A and 8 of the upper Mississippi River, the Chippewa River, and the Wisconsin River during fall 1994 through fall 1996. Radiotagged paddlefish were...
Authors
S. J. Zigler, M. R. Dewey, B.C. Knights, A.L. Runstrom, M.T. Steingraeber
At-Risk Riverine Fishes: Paddlefish and Lake Sturgeon At-Risk Riverine Fishes: Paddlefish and Lake Sturgeon
No abstract available.
Authors
Brent Knights, Steve Zigler
Habitat and movement of lake sturgeon in the upper Mississippi River system, USA Habitat and movement of lake sturgeon in the upper Mississippi River system, USA
Lake sturgeon Acipenser fluvescens, which are now protected from harvest, are considered rare in the upper Mississippi River and little information is available on the remaining populations. Transmitters were implanted into 31 lake sturgeon from two sites in the upper Mississippi River to describe their habitats and movement. The areas surrounding the tagging sites were core areas for...
Authors
Brent C. Knights, Jonathon M. Vallazza, Steven J. Zigler, Michael R. Dewey
Diel movement and habitat use by paddlefish in Navigation Pool 8 of the upper Mississippi River Diel movement and habitat use by paddlefish in Navigation Pool 8 of the upper Mississippi River
We studied diel movement and habitat use by paddlefish Polyodon spathula implanted with radio transmitters in Navigation Pool 8 of the upper Mississippi River. We radio-tracked five paddlefish during three randomly chosen 24-h periods each month in May, Aug, and Oct 1995. Paddlefish were located by boat one to three times every 3 h during each 24-h period. At each location, geographic...
Authors
Steven J. Zigler, Michael R. Dewey, Brent C. Knights
Estimating flow rates to optimize winter habitat for centrarchid fish in Mississippi River (USA) backwaters Estimating flow rates to optimize winter habitat for centrarchid fish in Mississippi River (USA) backwaters
The backwaters of large rivers provide winter refuge for many riverine fish, but they often exhibit low dissolved oxygen levels due to high biological oxygen demand and low flows. Introducing water from the main channel can increase oxygen levels in backwaters, but can also increase current velocity and reduce temperature during winter, which may reduce habitat suitability for fish. In...
Authors
Barry L. Johnson, Brent C. Knights, John W. Barko, Robert F. Gaugush, David M. Soballe, William F. James
Effects of implanted transmitters on adult bluegills at two temperatures Effects of implanted transmitters on adult bluegills at two temperatures
Laterally compressed panfishes are small and have limited intraperitoneal space; thus, they may suffer adversely from surgically implanted transmitters even if the transmitter meets the generally recommended ratio of transmitter weight to fish weight of 2%. We studied the effects of intraperitoneal transmitters (2.81 g) on survival, growth, healing, and health of bluegills Lepomis...
Authors
Brent C. Knights, Becky A. Lasee
Science and Products
Filter Total Items: 50
Movement and habitat use by radio-tagged paddlefish in the upper Mississippi River and tributaries Movement and habitat use by radio-tagged paddlefish in the upper Mississippi River and tributaries
We used radio telemetry to evaluate the movement and habitat use of paddlefish Polyodon spathula in the upper Mississippi River and two tributary rivers. Radio transmitters were surgically implanted into 71 paddlefish in Navigation Pools 5A and 8 of the upper Mississippi River, the Chippewa River, and the Wisconsin River during fall 1994 through fall 1996. Radiotagged paddlefish were...
Authors
S. J. Zigler, M. R. Dewey, B.C. Knights, A.L. Runstrom, M.T. Steingraeber
At-Risk Riverine Fishes: Paddlefish and Lake Sturgeon At-Risk Riverine Fishes: Paddlefish and Lake Sturgeon
No abstract available.
Authors
Brent Knights, Steve Zigler
Habitat and movement of lake sturgeon in the upper Mississippi River system, USA Habitat and movement of lake sturgeon in the upper Mississippi River system, USA
Lake sturgeon Acipenser fluvescens, which are now protected from harvest, are considered rare in the upper Mississippi River and little information is available on the remaining populations. Transmitters were implanted into 31 lake sturgeon from two sites in the upper Mississippi River to describe their habitats and movement. The areas surrounding the tagging sites were core areas for...
Authors
Brent C. Knights, Jonathon M. Vallazza, Steven J. Zigler, Michael R. Dewey
Diel movement and habitat use by paddlefish in Navigation Pool 8 of the upper Mississippi River Diel movement and habitat use by paddlefish in Navigation Pool 8 of the upper Mississippi River
We studied diel movement and habitat use by paddlefish Polyodon spathula implanted with radio transmitters in Navigation Pool 8 of the upper Mississippi River. We radio-tracked five paddlefish during three randomly chosen 24-h periods each month in May, Aug, and Oct 1995. Paddlefish were located by boat one to three times every 3 h during each 24-h period. At each location, geographic...
Authors
Steven J. Zigler, Michael R. Dewey, Brent C. Knights
Estimating flow rates to optimize winter habitat for centrarchid fish in Mississippi River (USA) backwaters Estimating flow rates to optimize winter habitat for centrarchid fish in Mississippi River (USA) backwaters
The backwaters of large rivers provide winter refuge for many riverine fish, but they often exhibit low dissolved oxygen levels due to high biological oxygen demand and low flows. Introducing water from the main channel can increase oxygen levels in backwaters, but can also increase current velocity and reduce temperature during winter, which may reduce habitat suitability for fish. In...
Authors
Barry L. Johnson, Brent C. Knights, John W. Barko, Robert F. Gaugush, David M. Soballe, William F. James
Effects of implanted transmitters on adult bluegills at two temperatures Effects of implanted transmitters on adult bluegills at two temperatures
Laterally compressed panfishes are small and have limited intraperitoneal space; thus, they may suffer adversely from surgically implanted transmitters even if the transmitter meets the generally recommended ratio of transmitter weight to fish weight of 2%. We studied the effects of intraperitoneal transmitters (2.81 g) on survival, growth, healing, and health of bluegills Lepomis...
Authors
Brent C. Knights, Becky A. Lasee