Benefits and Drawbacks Actually, cork fish have high economic value. Cork wild fish caught from rivers, lakes and swamps in Sumatra and Kalimantan often marinated before traded between islands. Cork salted dried fish is one that is quite expensive Palembang in Sumatra, especially in the very high price of fish as a raw material for making pempek (food typical Palembang). Besides fresh catfish, mostly sold in a state of life, an important source of protein for rural communities, especially those adjacent to swampy areas or river Catfish bait fish which is also enjoyable. With live bait such as insects or frogs child, cork fished relatively easy. However, sharp teeth and a bolt and a strong pull, can easily break the fishing line.