 |
| Evaluation of Entrainment Losses of Westslope
Cutthroat Trout at
Private Irrigation Diversions on Skalkaho Creek, Montana: Part I |
Photo Gallery |
 |
Looking downstream from the Hi-Line Ditch at the Fish Screen. April 3rd, 2003. |
|
 |
Close up, looking upstream from the Ward Ditch at the Fish Screen. April 3rd, 2003. |
|
 |
Looking downstream from the Ward Ditch at the Fish Screen. This screen is fenced in because it is so close to the road. April 3rd, 2003. |
|
 |
Looking downstream from the Hughes Ditch at Fish Screen. April 3rd, 2003. |
|
 |
Bypass return pipe from the Hughes Ditch Fish Screen back into Skalkaho Creek. April 3rd, 2003. |
|
 |
High water flow at Ward-Hughes diversion dam on May 31st, 2003. |
|
 |
High water flow at Skalkaho on May 31st, 2003. |
|
 |
High water flow at Hedge diversion dam on May 31st, 2003 |
|
 |
Graduate student Steve Gale conducts surgery on a westslope cutthroat trout to insert a radio-telemetry transmitter during May 2003. This device will be used to locate individual fish as they migrate to the Bitterroot River. |
|
 |
A radio-telemetry transmitter is being inserted into the abdomen of a westslope cutthroat trout during May 2003. Fish are captured as they migrate upstream to spawn. Once a fish has been tagged, it is released in the same area from which it was captured and allowed to continue its migration. |
|
 |
This westslope cutthroat trout has been tagged with a radio-telemetry transmitter that will enable investigators to monitor is location and movement patterns. |
|
 |
Graduate student Steve Gale holds a westslope cutthroat trout that was tagged with a radio-telemetry transmitter during June 2003. Locations and movements of tagged individuals will be monitored to determine their success in bypassing irrigation diversions during downstream migrations to the Bitterroot River. |
|
 |
A juvenile westslope cutthroat trout after surgical implantation of a radio transmitter. |
|
 |
Screw trap installed on August 15, 2003, 1.2 km upstream from the Hi-Line Ditch. |
|
 |
Technician Jon McCubbins nets fish recently caught in the holding area of the screw trap; these fish will be identified, measured (mm), and counted. Fish abundances migrating past this site will be estimated. |
|
 |
Looking downstream at the Highline Fish Screen. In the forefront is the trashrack that will collect larger debris and there is a walkway across the front to aid in cleaning the trashrack. |
|
 |
Paddlewheel that powers cleaning brushes, which keep the screen face clear of debris. |
|
 |
Looking upstream at the Highline Fish Screen. |
|
 |
Looking downstream at the Ward Fish Screen. In the forefront is the trashrack that will collect larger debris and there is a walkway across the front to aid in cleaning the trashrack. |
|
 |
Looking upstream at the Ward Fish Screen. |
|
 |
This is the Hughes Fish Screen. It diverts less water than the Highline and Ward ditches, so it is smaller in scale than the other two fish screens. |
|
 |
Looking downstream at the Hughes Fish Screen. In the forefront is the trashrack that will collect larger debris and there is a walkway across the front to aid in cleaning the trashrack. |
|
 |
Technicians Chris Penne and Jon McCubbins work on the Passive Integrated Transponder station, made by Biomark of Boise, ID, located at the Highline fish screen. The black antenna located on the bypass pipe in the forefront of the picture, picks up signals from small tags implanted in the fish. The antennas read the signals as fish are bypassed back to Skalkaho Creek after being entrained. |
|
 |
Technician Kortney Kirkeby is shown tracking down radio-tagged adult fish. |
|
 |
This is an adult male westslope cutthroat trout that was captured below the Hedge Diversion Dam and implanted with a radio-transmitter. |
|
 |
Graduate student Steve Gale after finishing a surgery on an adult male westslope cutthroat trout in which a radio-transmitter was implanted into its body cavity. |
|
|
 |
|
