Jim Greenfield, Großbritannien
Info
Oxyurichthys zeta is a small goby species that was only newly described in 2015 and has certain similarities with Oxyurichthys notonema, Oxyurichthys limophilus and Oxyurichthys stigmalophius.
All four species have small scales and dark pigment (eyespot) on the posterior field of the first dorsal fin, but the dark pigment is most pronounced in this new species and in Oxyurichthys stigmalophius.
Oxyurichthys zeta differs from Oxyurichthys stigmalophius and the others by all the scales and by the coloration.
In recent years, the number of new descriptions of small gobies (Trimma, Eviota, etc.) has virtually “exploded”, and scientists are puzzling over the reason for this.
Due to the continuous exploitation of the oceans by increasingly sophisticated fishing methods, the number of normal predators of small fish is dwindling. Whenever this so-called selection pressure decreases, the number of small fish increases sharply and new ones can develop.
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!
Naming: The species name “zeta” comes from the Greek ζήτα (zeta), from which the last letter of the Roman alphabet, on which the English language is based, originated.
Very special thanks for the first photo of Oxyurichthys zeta to Jim Greenfield!
Please have a look to his great homepage British Marine Life / https://www.oceaneyephoto.com
All four species have small scales and dark pigment (eyespot) on the posterior field of the first dorsal fin, but the dark pigment is most pronounced in this new species and in Oxyurichthys stigmalophius.
Oxyurichthys zeta differs from Oxyurichthys stigmalophius and the others by all the scales and by the coloration.
In recent years, the number of new descriptions of small gobies (Trimma, Eviota, etc.) has virtually “exploded”, and scientists are puzzling over the reason for this.
Due to the continuous exploitation of the oceans by increasingly sophisticated fishing methods, the number of normal predators of small fish is dwindling. Whenever this so-called selection pressure decreases, the number of small fish increases sharply and new ones can develop.
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!
Naming: The species name “zeta” comes from the Greek ζήτα (zeta), from which the last letter of the Roman alphabet, on which the English language is based, originated.
Very special thanks for the first photo of Oxyurichthys zeta to Jim Greenfield!
Please have a look to his great homepage British Marine Life / https://www.oceaneyephoto.com
