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Rosyside dace (Clinostomus funduloides) — Cyprinidae

Rosyside dace

Clinostomus funduloides
Family: Cyprinidae
LC · Least Concern

The Rosyside dace (Clinostomus funduloides) is a freshwater fish of the family Cyprinidae that grows up to 12 cm.

Length
11.5 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Range
Fresh water of eastern North America, in clear, cool, flowing streams with gravel bottoms.
Edibility
Not eaten

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Description

The rosyside dace is a slender cyprinid of the family Leuciscidae reaching about 12 cm. The silvery body has a fairly large, oblique mouth; in the breeding season the male's flank turns vivid red, with red fin bases, from which the species takes its name. The species is native to the fresh water of eastern North America and lives in schools in clear, cool, flowing streams with gravel bottoms. Just below the surface and in the water column it hunts drifting and suspended insects and small invertebrates. In spring it spawns on gravel bars, often over the nest pits of other cyprinids. It is a sensitive indicator of clean, cool stream water and an important prey fish.

Frequently asked questions

How do you recognise the Rosyside dace?

The Rosyside dace has an elongate, eel-like body, is mainly silver-grey and shows a horizontal stripes pattern. Slender shiner with a large mouth; the spawning-ready male develops a bright red flank and red fin bases.

Where does the Rosyside dace live?

The Rosyside dace lives in fresh water and is mostly found around stony or rocky ground. Fresh water of eastern North America, in clear, cool, flowing streams with gravel bottoms.

How big does the Rosyside dace get?

The Rosyside dace grows to a maximum of about 12 cm. On average the species is around 7 cm.

Is the Rosyside dace dangerous to humans?

No, the Rosyside dace is harmless to humans. None required: this species is harmless to humans.

Is the Rosyside dace edible?

The Rosyside dace is not usually eaten.

More photos

Rosyside dace (Clinostomus funduloides) — Cyprinidae — 2
iNaturalist ((c) kary, some rights reserved (CC BY-NC))
Rosyside dace (Clinostomus funduloides) — Cyprinidae — 3
Wikimedia Commons — Smithsonian Environmental Research Center (CC BY 2.0)
Rosyside dace (Clinostomus funduloides) — Cyprinidae — 4
Wikimedia Commons — Brian Gratwicke (CC BY 2.0)
Rosyside dace (Clinostomus funduloides) — Cyprinidae — 5
Wikimedia Commons — Smithsonian Environmental Research Center (CC BY 2.0)
Fin

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All data

Identification

English name
Rosyside dace verified
Scientific name
Clinostomus funduloides
Family
Cyprinidae

Appearance

Size class
Small verified
Max length (cm)
11.5 verified
Average length (cm)
6.7 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey sourced
Pattern
Horizontal stripes sourced
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Freshwater verified
Substrate
Stone or rock verified
Natural range
Fresh water of eastern North America, in clear, cool, flowing streams with gravel bottoms. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Floating and suspended insects and small invertebrates sourced
Social behaviour
Schooling verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
Seasonality
Spawns in spring on gravel banks, often above the nests of other cyprinids; the male then turns bright red. sourced
Special features
Slender shiner with a large mouth; the spawning-ready male develops a bright red flank and red fin bases. sourced

For anglers

Edibility
Not eaten verified
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
None required: this species is harmless to humans. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Clinostomus

More from the family Cyprinidae

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