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The Longnose Dace

Longnose Dace is a widespread freshwater minnow associated with fast streams and rocky lake margins. Aquatic insect larvae are important foods for bottom-associated adults.

Broad Native Range

The distribution extends across much of northern North America and south through mountain systems. This broad range includes many separate populations. Locality should remain attached to a record rather than assuming every river population has identical growth or seasonal timing.

Current and Early Life

Adults occupy riffles over rubble and gravel, with some use of runs, pools and rocky lake shores. Young spend an early period in quieter nearshore water before the typical adult bottom association develops. Different life stages therefore need not occupy the same immediate habitat.

Feeding and Size

Mayflies, blackflies and midges are recorded foods. Spawning occurs over gravel or rock. The maximum reference is 22.5 centimeters total length, notably above a common reference of 9.5 centimeters. Preserve the measured length and locality when comparing unusually large fish from different populations.

Keep Young and Adult Habitat Separate

Quiet-water young and riffle-associated adults can belong to the same species. Include life stage when describing a stream observation.

All Lakes With Longnose Dace

Browse lakes and reservoirs with documented Longnose Dace 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 109 lakes · Page 1 of 5

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