Largemouth Bass

Micropterus salmoides

A warmwater predator that thrives around shallow cover and hits hardest in low-light periods.

Overview

Size range

16–38 in

Size range

Typical adult length in the waters we cover.

Water temperature

Warmwater

Water temperature

Preferred thermal regime for this species.

Origin

Introduced

Origin

Stocking and native history where this species is found.

About Largemouth Bass

Largemouth bass are an introduced warmwater sport fish in Idaho. They inhabit lakes and some streams, especially shallow, weedy, cover-rich water where ambush feeding is effective.

Largemouth Bass Silhouette

Primary

Behavior

spawning: Spawning occurs in spring to early summer as waters warm; fish become less focused on feeding during this period.
feeding style: An ambush-oriented predator that feeds most actively at dawn and dusk, often near the surface and around vegetation; larger fish become mostly fish-eaters.
seasonal notes: Feeding slows in winter and also during the spawning period. Activity is strongest in warm water.

Habitat

water types: lakes, ponds, reservoir coves, slow streams
preferred holds: Shallow, warm, vegetated water; small shallow lakes, protected bays, weed edges, and other cover-rich shoreline areas.

Where Found

Not yet linked to waters

This species has not been linked to a river or lake in our catalog yet.

Angler Tactics

tactics: Target warm, shallow cover such as weeds, brush, docks, and bay margins, especially at first light and evening. Fish slower in cooler conditions, and focus on areas where bass can pin bait near vegetation.
effective methods: soft plastics, jigs, spinnerbaits, topwater lures, swimbaits/live minnow imitations

Regulations

Check the current Idaho fishing seasons and rules for the specific water before fishing, as bass limits and harvest rules can vary by location.

Regulations vary by water. Check current Idaho Fish and Game rules before fishing.

Conservation

Status: Introduced to Idaho

GNR · ESA: Not listed

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