scribbled goby

Scientific name Awaous guamensis
Descriptor Valenciennes
Year of description 1837
IUCN category LC
Family Gobiidae
Genus Awaous
Awaous guamensis Awaous guamensis


Awaous guamensis, commonly known as scribbled goby, is a fresh water, brackish water and salt water fish from the Great Barrier Reef.

Who is it?


  • Average size
    16 cm
  • Maximum size
    24 cm
  • Mimicry
  • Pattern
  • Average size
    16 cm
  • Maximum size
    24 cm
  • Mimicry
  • Pattern

How to recognize the scribbled goby ?

The scribbled goby measures around 16 cm. The dominant males can however reach 24 cm. This fish is bicolore with a predominantly noir and beige body. The also has noir mottling.

Sexual dimorphism

The adult male is bigger than the female.

Behaviour & Life cycle

  • diet
    omnivorous with carnivorous tendency
  • Sociability
  • territorial
  • Way of living

The scribbled goby is a fish solitary naturally found on the bottom. This species is omnivorous with carnivorous tendency .

The scribbled goby is a territorial animal that does not tolerate any incursions into its living area. It is particularly virulent against other territorial species and it can provoke heated fights. Relationships between conspecifics are also hectic, with each seeking to secure its place.


  • Reproduction
    ovipare qui pond sur substrat caché
  • Migratory species

The scribbled goby is a fish ovipare qui pond sur substrat caché. This species is amphidromous. It gives birth to larvae in fresh water which are immediately carried by the current of the rivers to the sea. These develop in salt water until a juvenile stage and then migrate from the sea to the interior of the land to continue their growth. This fish protects its eggs from nearby predators.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

Where to see this species?

What is its habitat?

Natural environment characteristics

  • Temperature
    10 - 23 °C
  • Depth
    1 - 3 m

Biotope presentation

The scribbled goby is most often found at a depth between 1m and 3m. However, it is not impossible to find this species at other depths.

To go further

Species of the same family

To read on the web

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Benoit Chartrer

Benoit Chartrer


Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

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Species of the same family

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