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Giant bully (Gobiomorphus gobioides) — Eleotridae

Giant bully

Gobiomorphus gobioides
Family: Eleotridae

The Giant bully (Gobiomorphus gobioides) is a fish that lives in both fresh and salt water of the family Eleotridae that grows up to 17 cm.

Length
17.4 cm
Water
Euryhaline
Diet
Carnivore
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Oceania: New Zealand

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Description

The giant bully is the largest sleeper goby (Eleotridae) of New Zealand, from fresh and brackish water. The species grows to about 17 cm and has a stocky, brown-grey body with a broad head and a fairly large mouth. It lives in lower river reaches and estuaries; the larvae migrate to sea and return as juveniles. As a bottom-oriented predator it seizes small crustaceans, insects and small fish. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Giant bully?

The Giant bully has a torpedo-shaped body and is mainly brown.

Where does the Giant bully live?

The Giant bully lives in both fresh and salt water and is mostly found around sand or mud bottom. Oceania: New Zealand

How big does the Giant bully get?

The Giant bully grows to a maximum of about 17 cm.

Is the Giant bully dangerous to humans?

No, the Giant bully 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.

More photos

Giant bully (Gobiomorphus gobioides) — Eleotridae — 2
iNaturalist ((c) Kenny Rose, some rights reserved (CC BY-NC))
Giant bully (Gobiomorphus gobioides) — Eleotridae — 3
iNaturalist ((c) belinda studholme, some rights reserved (CC BY-NC))
Giant bully (Gobiomorphus gobioides) — Eleotridae — 4
iNaturalist ((c) Joseph Knight, some rights reserved (CC BY-NC))
Giant bully (Gobiomorphus gobioides) — Eleotridae — 5
iNaturalist ((c) tabithaanderson, some rights reserved (CC BY-NC))
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All data

Identification

English name
Giant bully sourced
Scientific name
Gobiomorphus gobioides
Family
Eleotridae

Appearance

Size class
Medium verified
Max length (cm)
17.4 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Sand / mud bottom sourced
Natural range
Oceania: New Zealand sourced
Origin
Native inferred

Behaviour & biology

Diet
Carnivore inferred
Diet (detail)
Small fishes, crustaceans and invertebrates inferred
Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
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 Gobiomorphus

More from the family Eleotridae

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