05-03-2021, 05:37 PM
The spawn will be somewhat successful due to the inlet river and it's length combined with the spawning habitat. That is the criteria, not size or depth although those are considered as the depth must be enough that oxygenated cold water remains in the water body during the summer months. Many Utah impoundments are canyon reservoirs so they are deep enough even if small.
The inlet is what matters most though if any kind of self recruitment is to be attained. The Provo above Jordonelle is long, as is East Canyon Creek, the Weber River above Rockport...
Those long inlet streams provide the spawning habitat and may even provide additional egg stock for hatcheries. The added Koke lakes also add security to the program. If something were to happen at the berry like a big fire upstream that acidified the waters and added silt to the river making the hatchery useless for a few years the DWR could strip eggs from these other places and keep the program going.
The inlet is what matters most though if any kind of self recruitment is to be attained. The Provo above Jordonelle is long, as is East Canyon Creek, the Weber River above Rockport...
Those long inlet streams provide the spawning habitat and may even provide additional egg stock for hatcheries. The added Koke lakes also add security to the program. If something were to happen at the berry like a big fire upstream that acidified the waters and added silt to the river making the hatchery useless for a few years the DWR could strip eggs from these other places and keep the program going.