Topsmelt Silverside
Atherinops affinis
Topsmelt Silverside is a small schooling nearshore fish of the eastern Pacific, common in bays, estuaries, eelgrass beds, and surf zones. It feeds on plankton and tiny invertebrates and is an important forage fish for larger predators.
Identification points
- Silvery, translucent body with a distinct bright lateral stripe
- Small mouth that ends at or just below the front of the eye
- Two separate dorsal fins set well back on the body
Habitat
Shallow coastal waters, estuaries, lagoons, kelp and eelgrass beds, surfline, and harbor edges; often schools near the surface over sand or seagrass.
Bait notes
Usually caught incidentally on very small hooks with bits of shrimp, squid, or worm; tiny gold spoons, sabiki rigs, and small flies or micro-jigs also work.
Behavior
Highly schooling and surface-oriented, especially in calm water; drifts with tides and current while picking zooplankton, algae, and small crustaceans.
Caution
Handle carefully because the body is delicate; local regulations may restrict take in estuaries or protected areas.
Fishing notes
Fish light tackle and small presentations around schools, docks, bay mouths, and eelgrass edges; use a slow retrieve or suspend baits near the surface. It is generally a baitfish rather than a target game species.