Water parameters
Minimum tank: 1000 L per individual at harvest size.
Feed and growth
- Feed protein
- 42% target
- Daily feed (warm)
- 1.20% of body weight
- Daily feed (cool)
- 0.50% of body weight
- Max density
- 30 g per litre
A 1400 g adult eats about 16.8 g of feed per day at optimum. 10 fish at adult size: ~168 g daily.
Legality
Rules vary by jurisdiction and change over time. Verify with your local fisheries or wildlife authority before stocking.
| Jurisdiction | Status | Notes |
|---|---|---|
| California | prohibited | verified 2026-05-13 |
Unlisted jurisdictions default to "check local regulations".
Origin and habitat
Native to large, turbid rivers and reservoirs across central North America, from the Great Lakes south through the Mississippi and Missouri River basins to the Tennessee and Arkansas drainages. The species (Sander canadensis) is closely related to walleye (Sander vitreus) and occupies similar ecological niches but is smaller, reaching 40–50 cm and 1–2 kg compared to walleye's 75 cm and 5 kg. Sauger prefer deeper, more turbid water than walleye and are more tolerant of current and suspended sediment. The flesh is white, firm, and delicately flavored, virtually indistinguishable from walleye at the table and equally prized by anglers. Wild sauger populations have declined in many rivers due to dam construction and habitat modification.
Climate and outdoor ponds
- Climate
- temperate (handles seasonal swings)
- USDA zones
- 3–8 (winter low around -40°C or warmer)
- Heating needed
- no
- Cooling needed
- yes, if summer water exceeds upper tolerance
Care notes
A cool-water predatory species with very limited aquaponics applicability, included here for reference and for operators in the central US river systems who want a locally native percid species. Sauger share most culture challenges with walleye: they're predators that are difficult to wean from live food to pelleted feed, grow slowly in intensive culture, and are prone to stress-related disease and mortality when confined to tanks. Temperature range: 5–26°C, optimal at 18–22°C. Growth in culture: 200–500 g in 18-24 months on high-protein pellet (42-48% protein) for individuals that accept it; some never do. Feed training must start with very small fingerlings (under 5 cm). FCR data is sparse because so few intensive culture operations exist for this species; estimated at 2.0-3.0 on pellet. Dissolved oxygen above 5 mg/L; ammonia below 0.5 mg/L. Stocking density: 8-15 g/L, low because sauger are stress-prone in confinement. Fingerlings are difficult to source from commercial suppliers. State fisheries agencies produce sauger for wild stock restocking programs but rarely sell surplus for private aquaculture. The species hybridizes naturally with walleye where both species occur, producing the 'saugeye' hybrid. For practical aquaponics, walleye is the more viable choice between the two: larger adult size, better-established culture protocols, and wider fingerling availability. Sauger is primarily of interest to operators in the Ohio and Missouri River drainages who specifically want a locally native species.