Dr. John Ernest (Jack) Randall (†), Hawaii
Info
Amblyeleotris triguttata,
Gobies of the genus Amblyeleotris cannot build shelters for themselves, they use the abilities of a goby to do so.
The crayfish digs a retreat for itself and the goby, both then live together in the living tube in the form of a symbiosis:
The gobies use the burrows as shelter and nesting sites, while they serve as a tactical alarm signal for the firecracker to warn of potential predators, causing the firecracker to immediately disappear into the burrow.
Amblyeleotris triguttata lives on sand and gravel substrates, symbiotically together with the crayfish Alpheus bellulus.
It is known from the partner goby Amblyeleotris japonica that it feeds its symbiotic crayfish Alpheus bellulus with feces, whether this occurs in the goby-crayfish symbiosis with Amblyeleotris triguttata and Alpheus bellulus has not been scientifically confirmed but is certainly conceivable.
Sex and mating
There are no known visual differences between the sexes in this genus.
Furthermore, the sex of this species is determined after hatching and cannot be changed (gonochoric). The sex develops during spawning and is determined by the water temperature.
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!
Etymology:
The species name "triguttata" means "three spots" and refers to the black spots in the first dorsal fin and in the caudal fin.
Gobies of the genus Amblyeleotris cannot build shelters for themselves, they use the abilities of a goby to do so.
The crayfish digs a retreat for itself and the goby, both then live together in the living tube in the form of a symbiosis:
The gobies use the burrows as shelter and nesting sites, while they serve as a tactical alarm signal for the firecracker to warn of potential predators, causing the firecracker to immediately disappear into the burrow.
Amblyeleotris triguttata lives on sand and gravel substrates, symbiotically together with the crayfish Alpheus bellulus.
It is known from the partner goby Amblyeleotris japonica that it feeds its symbiotic crayfish Alpheus bellulus with feces, whether this occurs in the goby-crayfish symbiosis with Amblyeleotris triguttata and Alpheus bellulus has not been scientifically confirmed but is certainly conceivable.
Sex and mating
There are no known visual differences between the sexes in this genus.
Furthermore, the sex of this species is determined after hatching and cannot be changed (gonochoric). The sex develops during spawning and is determined by the water temperature.
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!
Etymology:
The species name "triguttata" means "three spots" and refers to the black spots in the first dorsal fin and in the caudal fin.
