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Giant goby

Distribution : Mediterranean

At the foot of a boulder, a giant goby may be as large as a small open-water fish. Its heavy head and powerful jaws distinguish it from the tiniest gobies. A calm approach may reveal it before it retreats into a hollow.

Habitat of Giant goby Habitat
Rocky habitat, Gravel
Depth range of Giant goby Depth
0-40 m
Biological group of Giant goby Group
Ecological role of Giant goby Role
Predator, Herbivore

📏 Size

20–25 cm; up to 27 cm

WHAT DOES IT LOOK LIKE?

Giant gobies commonly measure 20 to 25 centimetres. They have thick bodies, heavy heads and fairly high-set eyes.

Brown, blackish and pale patches produce mottling. Two dorsal fins are separate, the first short. Pectoral fins on the sides are broad and rounded.

Fins beneath the belly form a supporting disc. Unlike rock gobies, the species lacks a distinct yellow or orange edge on the first dorsal fin.

WHERE DOES IT LIVE?

It frequents rocks and boulder fields in shallow water, often within the upper ten metres. Rocky shelters may border sandy patches.

Young fish also use coastal lagoons. A goby remains close to a hiding place and may withdraw after a sudden movement.

WHAT DOES IT EAT?

Food includes limpets, crabs, small crustaceans and worms. Powerful jaws give access to prey with shells or hard coverings.

A fish can wait for a passing animal or seek it inside a hole. Green algae also supplement meals.

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Giant goby

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