Freshwater · Spring to fall; best in spring and early fall
Quillback
Carpiodes cyprinus
The quillback is a deep-bodied, silver sucker-family fish of Saskatchewan and Manitoba rivers and lakes, recognisable by its tall sail-like dorsal fin. It is a harmless bottom feeder often misreported as a giant goldfish or carp, and a fun light-tackle catch.
Seasons · Peak
Identifying features
- Deep, laterally compressed silvery body with a small downturned mouth
- Very tall, sail-like dorsal fin with a long, quill-like first ray
- No barbels and no spines — a true sucker, not a carp
- Small head with eyes set high
- Fins unmarked silver-grey, tail moderately forked
Habits
- Native to large rivers and lakes from Saskatchewan and Manitoba into Ontario and the Great Lakes
- Feeds on bottom invertebrates, snails and detritus with protrusible lips
- Forms loose schools over soft bottoms
- Spawns in spring in shallow flowing water
- Long-lived and slow-growing, so large fish are old fish
Distribution
Where to find them
- Deep slow pools of the Saskatchewan, Assiniboine and Red rivers
- Backwaters and soft-bottom bays of river lakes
- Below low dams where current softens
Where they live
How to catch them
Still bottom fishing River
Rig: Medium-light rod, slip-sinker rig with a small hook resting on soft bottom in slow pools
Bait/lure: Worm pieces, corn
Key tip: Use a small hook and light line — quillback mouth baits gently and drop heavy rigs.
Drift fishing slow runs River
Rig: Light spinning rod, lightly weighted bait drifted slowly through deep runs and backwater edges
Bait/lure: Worm pieces, dough
Key tip: Keep the bait moving just off bottom and watch for soft, hesitant takes.
Best baits & lures
Baseline setup
- Rod: Medium-light 6-7 ft spinning rod
- Line: 6-10 lb mono
- Terminal: Slip sinkers, small hooks size 6-10
Recommended gear for this species
Rod · Best value
9' 5-weight fly rod outfit
≈ US$180-260
Covers chironomid lakes and small rivers with one setup.
Flies · Budget
Chironomid assortment (30 patterns)
≈ US$25-40
Chironomids are 60% of a lake rainbow's diet in spring.
Picks come from our rule library — never paid placements. Prices are guides; affiliate links may earn us a commission.
Typical size
Common 14-20 in; large fish to about 26 in and 10 lb
On the table
Fair — sweet but very bony flesh; more often released than kept in Canada.
Similar species
Common CarpCommon carp has barbels at the mouth corners and a long low dorsal fin; quillback has no barbels and a very tall, sail-like dorsal with an extended first ray
White SuckerWhite sucker is cylindrical and torpedo-shaped with a low dorsal fin; quillback is deep and compressed with a towering dorsal sailRegulations vary by area and can change in-season — always check the official rules for your area before you fish. Regulations guide →
Plan a trip for Quillback
Build today's plan