Yes. Many sucker species that live in lakes can survive there through winter. When a lake freezes, fish below the surface are not necessarily frozen: ice helps insulate the water, and fish generally become less active in cold weather. Where suckers spend winter depends on the species and the habitat available.
What happens to suckers when a lake freezes?
Ice forms at the surface, but the water beneath it remains a habitat for fish. NOAA’s National Ocean Service explains that surface ice provides some insulation, helping a lake retain heat. It also says most fish slow down and rest near the bottom during cold winter months. These are general observations about fish, not a behavior documented for every sucker species.
As an Amazon Associate I earn from qualifying purchases.
For suckers, the important point is that a frozen surface does not by itself mean the fish below have frozen. Lake depth, sheltered habitat, and the species’ needs all affect where fish can spend the season.
Which sucker species are known to live in lakes?
“Sucker fish” can mean members of the sucker family, Catostomidae, which includes many species. Their habitats are not interchangeable, so a pattern described for one species should not automatically be applied to all of them.
#1 Best Overall
- GLASS AQUARIUM: Rectangular glass aquarium makes an ideal home for your fish.
- ADD ON ACCESSORIES: Mix and match with your favorite Tetra filtration, lighting and water care products (sold separately).
- EASY CUSTOMIZATION: Use assorted Tetra accessories (sold separately) to make your aquarium your own.
- 29 GALLON TANK: Measures 30.19 inches wide by 12.5 inches deep by 18.5 inches high.
- TETRA BRAND: Dedicated to helping seasoned hobbyists and beginners alike enjoy a successful, lifelong aquatic experience.
| Species | What the sources say about habitat | What that establishes about winter |
|---|---|---|
| Longnose sucker | Ontario’s Freshwater Fishes Life History Database describes lacustrine and riverine habitat, including clear, cold, deep lakes and tributary streams. Michigan’s Department of Natural Resources also says the species prefers cold, deeper waters of the Great Lakes. | Supports lake occupancy, but does not give a universal winter survival limit. |
| Lost River sucker and shortnose sucker | A 2022 U.S. Geological Survey monitoring report describes both as long-lived, lake-dwelling catostomids that migrate to spawn in spring. | Supports lake residency; the report does not establish one winter behavior for all suckers. |
| Salish Sucker | The 2024 Canadian assessment describes British Columbia populations associated mainly with slow-moving headwater streams, wetlands, and beaver ponds. | Provides a species-specific account of winter habitat, rather than a general rule for lake-dwelling suckers. |
Where do suckers spend winter?
There is no single winter location that applies to every sucker. A general fish pattern is reduced activity and use of lower parts of ice-covered freshwater, while particular species may rely on more specific sheltered places.
Longnose sucker: cold, deep water
Ontario lists a preferred water-temperature range of 8–17°C for longnose sucker. That is a preference, not a demonstrated minimum winter survival temperature. The database also describes clear, cold, deep lakes and tributary streams as habitat; it does not specify one depth or temperature at which all longnose suckers can overwinter.
Rank #2
- Compact: Dimension: 7.9"x5.9"x5.9"; 1 Gallon tank; ideal for small spaces, aquarium beginners caring for a single betta, a few shrimp, snails, or a tiny goldfish. Also works as a temporary hospital tank, quarantine tank, or desktop decor (After deducting the filter part, the actual usable volume is approximately 0.8 gal and it will further decrease after adding substrate)
- Customizable Lighting: features a 3-color LED hood with 10 adjustable brightness levels to showcase your fish and tank décor
- Self-Cleaning Filtration: Hidden filter keeps tank clean for easier maintenance. Note: Clean filter sponge and pump regularly to avoid clogging; regular water changes are required — this small tank does not support zero-maintenance use
- Thoughtful Design: its top feeding hole allows for easy feeding without removing the lid; four silicone feet for stability and quiet operation
- Complete Starter Kit: 1x 1 gallon Fish Tank, 1x Filter Sponge, 1x Adjustable Water Pump, 1x LED Hood (Note: The light requires a power transformer (not included) for use. Compatible transformers include 5V 0.5A, 5V 1A, 5V 1.5A, and 5V 2A)
Salish Sucker: quiet water and cover
The 2024 assessment by Environment and Climate Change Canada and COSEWIC says Salish Suckers seek low-velocity water with abundant cover in winter. It describes deep pools and ponds as important habitat for adults and yearlings, and notes that fish may occupy tributaries and ditches that are dry in summer. The report’s habitat description includes pools deeper than 70 cm and dissolved oxygen above 4 mg/L; these are details for this assessment’s species and habitat, not family-wide requirements.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Other species may use different habitats
A U.S. Bureau of Reclamation report describes the sucker family broadly as using rivers, lakes, ponds, reservoirs, swamps, and low-salinity estuaries, often in shallow vegetated water. Such a family-level overview illustrates the range of habitats, but it cannot identify the winter needs of an unspecified sucker in an unspecified lake.
Rank #3
- HIGH-QUALITY GLASS CONSTRUCTION for strength and clarity
- SUITABLE FOR FRESHWATER AND MARINE APPLICATIONS
- REINFORCED CENTER-BRACED FRAMES on larger sizes to prevent glass bowing
- CLEAN SILICONE EDGES and SLEEK BLACK TRIM for a polished, watertight finish
- AVAILABLE IN MULTIPLE SIZES. Choose from 20-gallon High, 20-gallon Long, 29 gallon tanks
Is there a temperature or oxygen threshold for all sucker fish?
No universal winter survival temperature, oxygen requirement, or survival rate is established by the sources cited here. The longnose sucker’s 8–17°C range is a preferred-temperature listing, not a lower lethal limit. Likewise, the Salish Sucker assessment’s oxygen and depth details describe that species’ habitat and should not be treated as thresholds for every sucker.
Because the question does not identify a species, lake, depth, or winter severity, a more precise prediction for a particular fish population is not possible from these general facts.
Quick Recap
Sources
- NOAA National Ocean Service, “Where do fish go when it freezes outside?” (updated September 23, 2026).
- Ontario Freshwater Fishes Life History Database, “Longnose Sucker.”
- Environment and Climate Change Canada / COSEWIC, “Salish Sucker … assessment and status report 2024.”
- Michigan Department of Natural Resources, “Common carp and suckers.”
- U.S. Bureau of Reclamation, fish effects technical report.
- U.S. Geological Survey, 2022 monitoring report on Lost River and shortnose suckers.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Recommended Free Tools
Leave a Reply