Skip to main content

Dorosoma chavesi

Dorosoma chavesi

Small, silvery, and rarely noticed by anglers, the Nicaragua Gizzard Shad is a plankton-filtering clupeid native to lakes and rivers in Nicaragua and Costa Rica.

Its value to the fishery is indirect but real: dense schools convert copepods and water fleas into biomass that fuels the predators anglers actually chase.

Its restricted range across a handful of Central American lake systems — including volcanic crater lakes — makes it ecologically significant well beyond its modest size.

Scientific Name: Dorosoma chavesi

Also known as Sabalete, Sardina, Sardinilla, Sardina de Río

Physical Characteristics:
  • Moderately deep, laterally compressed silver body in the classic shad silhouette, with a row of sharp keeled scales (scutes) along the belly — 15–18 in front of the pelvic fins, 9–12 behind.
  • The most reliable field mark: a dark spot just behind the gill opening, which separates this species from similar small clupeids sharing the same waters.
  • Mouth relatively large for a shad, with a long lower jaw; the upper jaw reaches back to roughly the center of the eye.
  • Tops out around 24 cm (about 9.5 inches); most fish run under 20 cm standard length.

What to know

Habitat Distribution

  • Restricted entirely to Central America — native to lakes, rivers, and lagoons in Nicaragua and Costa Rica, with no established populations elsewhere in the world.
  • Warm, productive lowland waters are its core habitat: large open lake systems, deep river basins, satellite streams, and volcanic crater lakes including the Masaya Lagoon in western Nicaragua.
  • Not a cold-water or high-elevation species; its range is tied to the tropical lowland conditions of its native lake systems.

Specific Spots

  • Schools spread across open water in large lakes, tracking plankton concentrations rather than structure — distribution tends to be fairly uniform through the water column rather than depth- or cover-dependent.
  • Inshore shallows and lagoon margins also hold fish, particularly where zooplankton accumulates near vegetation edges or current seams.

See it in the app

Most maps show you water.
onWater shows you Dorosoma chavesi.

  1. 01 · Species map filter

    Map every Dorosoma chavesi water

    Pick Dorosoma chavesi and the map zeroes in on the waters they call home. No more guessing which lake holds them.

  2. 02 · Waterbody species

    Tap any water. See what lives there.

    Species, behavior and seasonal patterns for every lake, river and pond, before you leave the driveway.

  3. 03 · Angler Intelligence

    Ask how to catch Dorosoma chavesi

    Tactics, gear and timing from onWater's AI fishing guide, tuned to the species and the water you're on.

Stop guessing where Dorosoma chavesi are.

Open the map, filter by Dorosoma chavesi, and head to water that holds them. Download onWater and plan your next trip in minutes.

  • Species map filter
  • Angler Intelligence
  • Fishing journal
Try onWater+ for free

Explore other species

Trout, bass, salmon, panfish and everything in between. Each guide unpacks the behavior, seasons, and tactics that put fish in the net.

No species information available.

Smarter Fishing Starts in the App.

onWater Fish gives you everything you need to plan smarter, fish better, and own every trip from first cast to last.