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Magur fish(Clarias batrachus)
- 1. Magur fish English name:Walking Catfish,Clarias Catfish,Freshwater Catfish. Local name:Magur, Mosgur,Mojgor. Scientific name:Clarias batrachus.
- 3. Biological distribution • This is air breathing fish.Here accessory respiratory organ is branched and placed near the gills. • The head of this fish is larger then singhi and mouth is preasent on the ventral side. • Of the eight barbels ,two are much stouter and longer,while the other are similar.
- 4. • Following paired and impaired fins are present,which differ from the Singhi. • Paired Fins • Pectoral Fin: • Present near the opercular opening,first fin ray is modified into a sharp defensive structure. • Pelvic Fin: • Present on the ventral side and close to the pectoral fin.Supported by soft fin rays.
- 5. • Unpaired Fins: • Dorsal Fin: • Very large, extends along the mid-dorsal line of entire trunk and tail region.Supported by innumerable soft fin rays. • Anal Fin: • Present along the mid-ventral line of the tail region.Numerable soft fin rays are present. • Caudal Fin: • Semicircular and present on the terminal end of the tail region.
- 6. Habits and Habitats • Walking Catfish are benthic,omnivorous.Consume a wide variety of prey, including eggs or larvae of others fish, small fishes and a number of invertebrates. • Found in a wide variety of habitats including lakes, rivers, ponds, canals.
- 7. Advantages of culture of magur fish • There are more demand of magur in the market and that’s why more profit can be obtained by their culture. • Method of cultured is easy. They can be cultured any types of water body. • They can survive in adverse in environment such as less oxygen high temperature of water, even polluted water.
- 8. • They can be cultured in less water and with more density. • Less affected by disease and high tolerant. • They can be marked as live condition as they can survive in less water and even in without water. • If earing properly, fishes can be marketed early (6-8 months) • Along earing individual culture, they can also be cultured with carp fish, tilapia fish etc. as mixed cultured.
- 9. Distribution • The Walking Catfish is a widely distributed speices, known from pakistan, eastern India, Sri Lanka, Bangladesh, Myanmar, Singapore, Indonesia, and the Philippines.
- 10. Economic importance • Clarias batrachus is a commercially important catfish species of Bangladesh. The fish is delicious and nutritious. Owing to its ability to survive for some time out of water. • Commercial large-scale production of Clarias batrachus can play a vital role in the country’s economy. The fish is important as an ornamental fish and cultured in aquariums. It is a high priced fish because of its exceptional nutritional value.
- 11. Status and conservation • Not considered as threatened in the Red List of IUCN Bangladesh (2000). Because of its ability to withstand marginalized and poor quality water, the fish still exists as a common species. • The Walking Catfish can be sold and traded fresh fish product. The fish has a great reputation for their wholesome qualities.
- 12. • It is cultured in shallow ponds, and the stocking density ranged from 25,000- 1,00,000/ha. Maximum production of 5,043kg/ha obtained from a farm pond of 0.1ha has been reported. • The fish can also be cultured in case, cemented cisterns, paddy fields and sewage waters.
- 13. Remarks • This is a highly variable species in form. The caudal fin occasionally gets fused with the dorsal and anal fins in some abnormal specimens. • The food value of 100g of flesh contains protein 32g, fat 2g, iron 0.7g, calcium 172mg, phosphorus 300mg and water 66.3%.
- 14. Magur fish
- 15. Magur fish
- 16. Thank you