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Balston's perchlet (Nannatherina balstoni) — Percichthyidae

Balston's perchlet

Nannatherina balstoni
EN · Endangered

The Balston's perchlet (Nannatherina balstoni) is a freshwater fish of the family Percichthyidae that grows up to 9 cm.

Length
9 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Small groups
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Edibility
Not eaten

Description

Balston's pygmy perch is a pygmy perch (Percichthyidae) from southwestern Australia and is regarded as the rarest of the endemic freshwater fishes there. The species is small and has a stocky body that shows finer colours in the spawning season. It inhabits tea-coloured, acidic forest streams and swamps that change level seasonally. As a small predator it snaps small invertebrates and insect larvae. Through habitat loss and introduced fishes it is critically endangered. The species is harmless to humans.

Frequently asked questions

How do you recognise the Balston's perchlet?

The Balston's perchlet has an elongate, eel-like body, is mainly brown and shows a plain pattern.

Where does the Balston's perchlet live?

The Balston's perchlet lives in fresh water and is mostly found around mixed bottom.

How big does the Balston's perchlet get?

The Balston's perchlet grows to a maximum of about 9 cm. On average the species is around 6 cm.

Is the Balston's perchlet dangerous to humans?

No, the Balston's perchlet is harmless to humans.

Is the Balston's perchlet edible?

The Balston's perchlet is not usually eaten.

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All data

Identification

Dutch name
Balstons dwergbaars sourced
English name
Balston's perchlet verified
Scientific name
Nannatherina balstoni
Family
Percichthyidae
Other names
Balston's pygmy perch; Balston's Pygmy Perch; King river perchlet verified

Appearance

Size class
Small verified
Max length (cm)
9.0 verified
Average length (cm)
6.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes inferred
levensduur_max_jaar
3.0 verified

For anglers

Edibility
Not eaten sourced
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

More from the family Percichthyidae

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