Amazing catfish in India
Fish ladders are structures located on or around an artificial shore block, such as dams and dam sink) to create conditions for the natural migration of migratory species. The majority of fish ladders allow fish to pass around the block by wading shore and jumped on a series of relatively low levels (so new so called ladder) into the waters of the other side or the dam clearance country. Velocity of water flowing down the ladder must be large enough to attract the fish to the scales but not flowing too swiftly and that washed away downstream fish or less fish or exhausted and unable to continue their journey upstream.
They Catfish are the fish in their scientific name is Clariidae. They are part of a series Clariidae in class Siluriformes Actinopterygii (ray-finned fishes). They include 15 genera and approximately 114 species of catfish. All catfish species are freshwater fish.
These fish have the ability to extract oxygen from the air because they have the ability to breathe air through a complex organ that grow from arch bearing. Some species have the ability to overcome a big gap on the ground as Clarias batrachus.
They are found throughout Africa and the Middle East, we live in freshwater lakes, rivers, and wetlands, as well as the habitat of man-made, such as oxidation ponds or sewer systems wastewater treatment systems in urban areas. African walking catfish were introduced worldwide in the 1980s for the purpose of aquaculture, so are found in countries far outside the natural habitat of them, such as Brazil, Vietnam Nam, Indonesia and India.