Gobies is by far the largest family of fish with approximately 1,500 known species over the whole world. Just like its near relative the blenny, the goby usually lives in burrows and holes and are territorial, were most species are around 10cm in size.
The goby is a relatively social animal that lives with its partner for a longer period. The male goby attracts the female by making noises, and it is proven that these sounds are crucial for the choice of partner. The sound is made by the male gathering an amount of water in the mouth and quickly spurting it out with a massive force.
Another very interesting feature many of the gobies have around our dive sites is their partnership with shrimps. They live in a symbiotic relationship and depend on each other for survival. The shrimp is very skilful in digging, finding food and making a burrow. However, since it is blind, it makes the shrimp a very easy snack for predators.
The goby on the other hand, has very good eyesight but lacks the skill of digging, hence also making it an easy target. To survive they work together with the shrimp where the fish sit outside the excavation site as a lookout.
If you look carefully at the shrimp you can see the tentacles in close contact with the goby. If a predator would close in the shrimp can wiggle the tail, alarming the shrimp. The shrimp will then move to the side so the fish can swim in and hide.