Utah Wiper Stocking: Where Hybrid Bass Are Planted
Wipers are Utah’s striped-bass × white-bass hybrid, stocked for more than just a trophy-fishing opportunity. Here’s what 637 public stocking records show.
Utah’s public records in StockedWaters show 637 wiper-stocking events at 75 waters, totaling 17.9 million reported fish from 1993–2026. Utah DWR defines a wiper as a striped-bass × white-bass hybrid and describes it as a predator used to manage prey fish in some reservoirs.
Key takeaways
- All wiper records in the current StockedWaters live coverage are from Utah.
- Willard Bay Reservoir has the largest reported total in this dataset: 14,702,714 fish across 108 records.
- DWR says wipers can help control overabundant prey fish while also creating a trophy-fishing opportunity.
Where does Utah stock wipers?
Wiper records appear at 75 Utah waters, with a state-level view available on the Utah wiper page. The largest cumulative record totals are at Willard Bay Reservoir, followed by a set of reservoirs with much smaller historical totals. Use a specific water’s newest entry—not the statewide total—to begin planning.
The figures are a reproducible snapshot of the agency records indexed by StockedWaters. A record is a reported stocking event; it is not a promise that fish remain in a water today.
Utah wiper stocking: the record snapshot
These counts are reported historical stocking data, not a population estimate or a catch forecast.
- Willard Bay Reservoir — 108 records and 14,702,714 reported wipers; latest indexed year 2026.
- Scofield Reservoir — 30 records and 261,833 reported wipers; latest indexed year 2025.
- Otter Creek Reservoir — 27 records and 512,693 reported wipers; latest indexed year 2025.
- Newcastle Reservoir — 25 records and 389,751 reported wipers; latest indexed year 2025.
How to compare utah wiper stocking records honestly
The event total, distinct-water total, and reported-fish total answer different questions. An event total shows how many separate releases an agency recorded. A distinct-water total shows the breadth of named locations in the indexed data. A reported-fish total adds the quantities supplied by the agency. None is a live census of fish in the water.
Comparisons also inherit the scope of the original reports. Agencies can have different start years, update schedules, fish-size labels, and date precision. StockedWaters normalizes the fields needed to compare records, but it does not turn a month-level report into an exact day or fill in quantities that the agency did not publish.
What a cumulative stocking total cannot tell you
- A large historical total does not prove that fish are present or catchable today.
- A named water in the data is not automatically public, open, or managed under standard statewide rules.
- A reported quantity does not predict survival, fishing pressure, or an angler’s likely catch rate.
- A newer source entry can supersede a prior plan or reveal a different date precision.
Why does Utah stock wipers?
Utah DWR says wipers are hybrid predators used in waters such as Minersville, Newcastle, and Scofield reservoirs to help prevent prey-fish overpopulation. DWR also notes that wipers can grow large, creating a trophy-fishing opportunity. That management role is why a stocking record needs to be read alongside the individual water’s rules and fishery context.
- Step 1: Open the waterbody’s wiper history and identify the newest reported entry.
- Step 2: Check whether the date is a confirmed report and read any size or quantity fields as reported.
- Step 3: Confirm Utah’s live stocking report and the current water-specific fishing rules.
How to check the source before a trip
The Utah DWR fish-stocking report is the current source for water-level records. DWR’s stocking science explainer describes wipers as a striped-bass × white-bass hybrid and explains their prey-fish management role.
Always check the water-specific rules and access conditions before fishing. A stocking report is evidence of a reported release, not a substitute for the current regulations.
Related StockedWaters guides
For another warmwater fishery guide, see Bass Stocking Explained. For Utah’s broader program and report links, read Utah Fish Stocking: What DWR Plants.
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Frequently asked
What is a wiper fish?
Utah DWR defines a wiper as a hybrid cross between a striped bass and a white bass. In Utah’s fish-stocking context, wipers are managed as predators that can help control prey fish in selected waters while also offering anglers a chance to catch large fish.
Where does Utah stock wipers?
StockedWaters currently indexes Utah wiper records at 75 named waters. Willard Bay Reservoir has the largest cumulative reported total in this dataset, but anglers should use the water-specific page and Utah DWR’s current stocking report rather than relying on an all-time statewide total.
Why does Utah stock wipers?
Utah DWR explains that wipers can help prevent prey-fish overpopulation in certain reservoirs, including Minersville, Newcastle, and Scofield. The management goal comes first; the potential for trophy fishing is an additional benefit. Check the specific water’s current regulations before fishing.
Does a Utah wiper stocking record guarantee fish are present?
No. A stocking record documents a reported release, not a guarantee of present fish abundance, catch success, access, or legal harvest today. Review the newest water-specific report, current Utah regulations, local conditions, and access notices before planning a wiper-fishing trip.