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The Redside Shiner

Redside Shiner is a western schooling minnow with a varied diet. Juveniles use small planktonic foods, while larger fish take insects, eggs and sometimes other small fishes.

Range and Identity

Richardsonius balteatus occurs naturally in several Pacific and interior western basins, with introductions into additional river systems. Native Bonneville and Columbia records should remain distinct from introduced upper Missouri or Colorado basin occurrences. A western locality alone does not resolve population origin.

Habitat and Behavior

Adults inhabit streams, rivers, ponds and lakes, often over mud or sand near vegetation. They form schools. This range of environments means that a standing-water observation and a flowing-stream observation can both describe valid habitat for the same species.

Food and Life History

The upper reference is eighteen centimeters total length. Small young consume diatoms and tiny crustaceans, while larger fish add insects, mollusks, eggs and fishes. Spawning involves brief close contact between a female and males, with eggs adhering to bottom gravel or plants.

Field Note

Keep the life stage with a feeding record. The prey suitable for a newly growing shiner differs from the foods available to a substantially larger adult.

All Lakes With Redside Shiner

Browse lakes and reservoirs with documented Redside Shiner records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.

Showing 1–24 of 2,206 lakes · Page 1 of 92

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