Saltwater · Year-round off northern South America; in our regions only a rare occurrence at the Panama-Colombia Caribbean border.
Smallscale Weakfish
Cynoscion microlepidotus
A large weakfish of the northern South American coast from Colombia to southern Brazil, distinguished by extremely small scales; it only marginally reaches eastern Caribbean Panama.
Seasons · Peak

Identifying features
- Scales very small and smooth, 140 or more transverse rows above the lateral line
- Silvery-green to grey back, whitish belly, darkish tip to the dorsal fin
- No chin barbel; large canines at the tip of the upper jaw
- Soft dorsal fin with 22-25 rays; anal fin 8-10 soft rays
- Larger maximum size (to 92 cm) than most Caribbean weakfishes
Habits
- Lives over mud and sand in estuaries and shallow coastal water
- Feeds on small fishes and crustaceans
- Important locally in Maranhao, Brazil, elsewhere mixed with other weakfish landings
- Adults mostly marine, juveniles in estuaries
Distribution
Where to find them
- Estuaries of the Gulf of Uraba / far eastern Panama border area (rare)
- Northern South American estuaries (core range, outside our regions)
Where they live
How to catch them
Bottom fishing with natural bait Boat
Rig: Two-hook paternoster or Carolina rig with 1-3 oz sinker
Bait/lure: Live or fresh shrimp
Key tip: Keep the bait on the bottom over sand or mud and wait for the soft, tapping bite.
Bottom fishing with natural bait from shore Shore
Rig: Two-hook paternoster or Carolina rig with 1-3 oz sinker
Bait/lure: Live or fresh shrimp
Key tip: Keep the bait on the bottom over sand or mud and wait for the soft, tapping bite.
Best baits & lures
Baseline setup
- Rod: Medium spinning or conventional rod 7-9 ft
- Line: 20-30 lb braid with 30 lb fluorocarbon leader
- Terminal: 2/0-4/0 circle hooks, 2-4 oz sinker or jig
Recommended gear for this species
Rod · Best value
7'6" medium-heavy jigging rod
≈ US$110-170
Works 2-6 oz jigs over rock and reef and still has the backbone to lift a halibut off the bottom.
Line · Budget
50 lb braid with 40 lb leader (200 yd)
≈ US$25-40
Thin braid cuts the current so jigs stay vertical; the leader shrugs off rock and teeth.
Terminal · Budget
Leadhead jigs, swimbaits and two-hook bottom rigs
≈ US$25-40
A leadhead with a swimbait tail is the universal bottom-fish catcher, from rockfish to cod to flounder.
Picks are never paid placements. Prices are guides; price links are coming soon and none is an affiliate link yet.
Typical size
Up to about 92 cm and 3 kg; commonly 40-60 cm.
On the table
Fine, firm flesh; a valued local food fish, good steamed, fried or in soups.
Similar species
Regulations 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 Smallscale Weakfish
Build today's plan⚠ Heads-up: Smallscale Weakfish doesn't occur around Vancouver, BC (or is very rare there), so it's not a sensible local target. Your plan stays in Vancouver, BC and is built around the fish that actually live there.

