None of the Iranian fishes are used in this fashion but they can be quite colourful. taenia is a potential fishing bait for predatory fishes such as Sander lucioperca and has been examined experimentally for this purpose in Turkey (Kuşat et al., 1995).
Menon (1992) considers that structural details of the bony covering of the swimbladder and the nature of the scales are only of use at the generic level.
Lip structures, fin positions relative to one another and secondary sexual characteristics in males are important characters in differentiating species in India.
They take in air at the surface, and pass it through the intestine where the mucosa absorbs the oxygen and carbon dioxide waste is released through the vent.
As a consequence, they may be very sensitive to air pressure changes and become restless when it falls and can be used to predict the weather.
Foods are mostly small insects, worms and crustaceans detected by the aid of the barbels on the habitat bottom. Most species bury themselves in sand or mud during the day, emerging to feed at night.