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Blackspotted topminnow (Fundulus olivaceus) — Fundulidae

Blackspotted topminnow

Fundulus olivaceus
Family: Fundulidae
LC · Least Concern

The Blackspotted topminnow (Fundulus olivaceus) is a freshwater fish of the family Fundulidae that grows up to 8 cm.

Length
8 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Small groups
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Range
Clear streams and rivers of central and south-eastern North America.
Edibility
Not eaten

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Description

The blackspotted topminnow (Fundulus olivaceus) is a small killifish of the family Fundulidae from central and southeastern North America. The species has a slender, silvery body with a broad, black lengthwise stripe and numerous small black spots on the back, and an upward-pointing mouth; it reaches about 8 cm. It stays near the surface of quiet to flowing water, usually along the margins of clear, sandy to gravelly headwaters, creeks and small rivers. As a surface hunter it feeds mainly on insects. Owing to its small size the species has no fishery value, but it is sometimes used as bait.

Frequently asked questions

How do you recognise the Blackspotted topminnow?

The Blackspotted topminnow has an elongate, eel-like body, is mainly silver-grey and shows a horizontal stripes pattern. Broad black longitudinal stripe with small black spots on the back and an upturned mouth; surface hunter.

Where does the Blackspotted topminnow live?

The Blackspotted topminnow lives in fresh water and is mostly found around mixed bottom. Clear streams and rivers of central and south-eastern North America.

How big does the Blackspotted topminnow get?

The Blackspotted topminnow grows to a maximum of about 8 cm. On average the species is around 8 cm.

Is the Blackspotted topminnow dangerous to humans?

No, the Blackspotted topminnow is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Blackspotted topminnow edible?

The Blackspotted topminnow is not usually eaten.

More photos

Blackspotted topminnow (Fundulus olivaceus) — Fundulidae — 2
Wikimedia Commons — Fishes of Texas team (CC BY-SA 4.0)
Blackspotted topminnow (Fundulus olivaceus) — Fundulidae — 3
iNaturalist ((c) IHUNTA, some rights reserved (CC BY-NC))
Blackspotted topminnow (Fundulus olivaceus) — Fundulidae — 4
Steven Wang (CC BY 4.0) via GBIF — iNaturalist
Blackspotted topminnow (Fundulus olivaceus) — Fundulidae — 5
iNaturalist ((c) Henry Dennison, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Blackspotted topminnow verified
Scientific name
Fundulus olivaceus
Family
Fundulidae

Appearance

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

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
Clear streams and rivers of central and south-eastern North America. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Insects from the surface and small invertebrates sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Broad black longitudinal stripe with small black spots on the back and an upturned mouth; surface hunter. sourced

For anglers

Edibility
Not eaten sourced
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 sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Fundulus

More from the family Fundulidae

Fin

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