Home · Opistognathidae · Dusky jawfish
Dusky jawfish (Opistognathus whitehursti) — Opistognathidae

Dusky jawfish

Opistognathus whitehursti
LC · Least Concern

The Dusky jawfish (Opistognathus whitehursti) is a saltwater fish of the family Opistognathidae that grows up to 14 cm.

Length
14 cm
Water
Saltwater
Depth
1.0–12.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Edibility
Not eaten

Description

The dusky jawfish is a small jawfish (Opistognathidae) from the western Atlantic. The species reaches about 14 cm, has an elongate, dark mottled body and a proportionally large head with a wide mouth. It inhabits rock and sand bottoms and the eroding edges of weed beds, where it digs and guards a burrow. The fish is strongly territorial and stays close to its shelter. The diet consists of small invertebrates and zooplankton. Like other jawfishes the male broods the egg mass in its mouth.

Frequently asked questions

How do you recognise the Dusky jawfish?

The Dusky jawfish has an elongate, eel-like body, is mainly brown and shows a marbled pattern.

Where does the Dusky jawfish live?

The Dusky jawfish lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Dusky jawfish get?

The Dusky jawfish grows to a maximum of about 14 cm. On average the species is around 10 cm.

Is the Dusky jawfish dangerous to humans?

No, the Dusky jawfish is harmless to humans.

Is the Dusky jawfish edible?

The Dusky jawfish is not usually eaten.

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All data

Identification

Dutch name
Donkere kaakvis sourced
English name
Dusky jawfish verified
Scientific name
Opistognathus whitehursti
Family
Opistognathidae
Other names
Dusky Jawfish; Dusky jawfish verified

Appearance

Size class
Small verified
Max length (cm)
14.0 verified
Average length (cm)
10.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Marbled inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
12.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
Yes inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

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

Same genus Opistognathus

More from the family Opistognathidae

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