09-01-2012, 04:02 AM
Dave Teuscher sent me an email as he couldn't get it to go through on what I think was Leaky's email. He asked that it be posted.
Letter quote:
I tried to get this message to one of the anglers that posts to website, but for some reason his Email keeps getting kicked back (email address left out) Anyway perhaps you can post my response on Condie given that many others are interested.
Thank you for taking the time to share your information and pictures from Condie Reservoir. I share your concern for this tremendous warmwater fishery.
Entrainment of fish through the outlet at Condie Reservoir occurs every year, but is worse when the reservoir is drawn to its lowest point. As you observed, the outlet gate is wide open but no water is flowing out of Condie. The remaining water in the reservoir is at an elevation below the outlet. Many of the small irrigation reservoirs in Franklin County have similar non-active storage that exists below the outlet gates. The remaining pool of water, while it looks inadequate, generally supports enough fish to maintain the fishery. Not to say that the remaining water level is at all ideal, but a surprising number of bass and other species survive the low water condition. For example, the last time Condie Reservoir was this low was in 2007. The nice bass that you and many other anglers were enjoying the past several years, especially bass over 14 inches long, survived the minimum pool condition that occurred in 2007.
Because of the minimum pool, IDFG rarely places Condie on salvage. If we had placed Condie on salvage in 2007, would your angling experience have been negatively impacted over the past several years? Also, similar to this year, when the reservoir hit its low in 2007, a fish kill occurred in the canal below the reservoir.
Another strong indication that many fish still remain in the current minimum pool is the large flock of foraging pelicans. I counted 148 American white pelicans foraging at Condie the past two days. The pelicans were aggressively foraging on fish in the reservoir. I don’t know exactly how many days the pelicans have been targeting Condie, but I believe it has been over a week.
Each pelican has a daily consumption demand of about 2.5 pounds of fish. The 148 pelicans counted yesterday foraging at Condie will consume about 370 pounds of fish per day. That is over 2,500 pounds per week. Those kinds of predation losses on top of the impact of low water will negatively impact the reservoir fishery. While pelicans were counted at Condie in 2007, the numbers were a small fraction of what I counted the past two days.
Yesterday, I observed 7 tagged pelicans at Condie. Five were from Blackfoot Reservoir, one was from the nesting population at Minidoka and one was from the Great Salt Lake colony. IDFG is working to try and manage the Blackfoot Reservoir pelican population. In the past few years, IDFG has introduced predators to the nesting islands, fenced off portions of the nesting islands, and most recently oiled pelican eggs. Oiling the eggs prevents hatching.
I am interested in your feedback on our decision to not place Condie on salvage. It is a difficult decision that has been weighted heavily on the past performance of fish that survive in the minimum pool. However, the addition of significant pelican predation may change how we view the situation in the future. We will continue to do our best to monitor the fishery, evaluate our management strategies, and do our best to meet angler demands. If you would like more specific information on Condie’s bass populations, we have several reports documenting fishery trends in Condie along with age and length data for largemouth bass.
Dave
David Teuscher
Regional Fisheries Manager
Southeast Region
Idaho Department of Fish and Game
[url "http://tel:208-232-4703"]208-232-4703[/url]
[signature]
Letter quote:
I tried to get this message to one of the anglers that posts to website, but for some reason his Email keeps getting kicked back (email address left out) Anyway perhaps you can post my response on Condie given that many others are interested.
Thank you for taking the time to share your information and pictures from Condie Reservoir. I share your concern for this tremendous warmwater fishery.
Entrainment of fish through the outlet at Condie Reservoir occurs every year, but is worse when the reservoir is drawn to its lowest point. As you observed, the outlet gate is wide open but no water is flowing out of Condie. The remaining water in the reservoir is at an elevation below the outlet. Many of the small irrigation reservoirs in Franklin County have similar non-active storage that exists below the outlet gates. The remaining pool of water, while it looks inadequate, generally supports enough fish to maintain the fishery. Not to say that the remaining water level is at all ideal, but a surprising number of bass and other species survive the low water condition. For example, the last time Condie Reservoir was this low was in 2007. The nice bass that you and many other anglers were enjoying the past several years, especially bass over 14 inches long, survived the minimum pool condition that occurred in 2007.
Because of the minimum pool, IDFG rarely places Condie on salvage. If we had placed Condie on salvage in 2007, would your angling experience have been negatively impacted over the past several years? Also, similar to this year, when the reservoir hit its low in 2007, a fish kill occurred in the canal below the reservoir.
Another strong indication that many fish still remain in the current minimum pool is the large flock of foraging pelicans. I counted 148 American white pelicans foraging at Condie the past two days. The pelicans were aggressively foraging on fish in the reservoir. I don’t know exactly how many days the pelicans have been targeting Condie, but I believe it has been over a week.
Each pelican has a daily consumption demand of about 2.5 pounds of fish. The 148 pelicans counted yesterday foraging at Condie will consume about 370 pounds of fish per day. That is over 2,500 pounds per week. Those kinds of predation losses on top of the impact of low water will negatively impact the reservoir fishery. While pelicans were counted at Condie in 2007, the numbers were a small fraction of what I counted the past two days.
Yesterday, I observed 7 tagged pelicans at Condie. Five were from Blackfoot Reservoir, one was from the nesting population at Minidoka and one was from the Great Salt Lake colony. IDFG is working to try and manage the Blackfoot Reservoir pelican population. In the past few years, IDFG has introduced predators to the nesting islands, fenced off portions of the nesting islands, and most recently oiled pelican eggs. Oiling the eggs prevents hatching.
I am interested in your feedback on our decision to not place Condie on salvage. It is a difficult decision that has been weighted heavily on the past performance of fish that survive in the minimum pool. However, the addition of significant pelican predation may change how we view the situation in the future. We will continue to do our best to monitor the fishery, evaluate our management strategies, and do our best to meet angler demands. If you would like more specific information on Condie’s bass populations, we have several reports documenting fishery trends in Condie along with age and length data for largemouth bass.
Dave
David Teuscher
Regional Fisheries Manager
Southeast Region
Idaho Department of Fish and Game
[url "http://tel:208-232-4703"]208-232-4703[/url]
[signature]