TRADITIONAL FISHERIES

marine fisheries

1. Nanaji Deshmukh VETERINARY Science University Jabalpur COLLEGE OF FISHERY SCIENCE, JABALPUR SUBJECT-MARINE FISHERIES TOPIC- TRADITIONA L FISHERIES

2. Many years ago man started using various type of gear used for hunting the terrestrial animals and for fishing also . It is very difficult to say which started first, but some time it is opined that fishing is younger. Reason behind it is easy to catch animals in the land than in the water . In olden days fishing was not having much importance as there was no demand for fish. Earlier fishing was restricted to a particular community but it is not so now. In order to meet the increased demand, fishing is now carried out industrially. Fishing technology not only concerns fishing gear, fishing methods and vessels but also concern Biological and Environmental factors. 

3. Traditionally fishermen detect fish through local knowledge, record keeping, observation of schools breaking to surface, and the behavior of birds and other sea creatures. In deeper waters fishes were detected from the vibration of signal lines dropped from the vessel During the last 50 years, synthetic fibers, which are virtually rot-proof, gradually replaced natural materials in the fabrication of nets and lines. Developments in new synthetic materials and fabrication techniques are continuously improving fishing gear effectiveness and efficiency.

4. TRADITIONAL FISHING GEARS Without gear – This includes hand picking, fishing with feet, simple tools for catching fish etc. Grappling and wounding gear – In this method, the fish are caught by grappling, squeezing, piercing, transfixing or wounding. The implements used for this are spears, clamps, tongs, rakes, harpoons etc Stupefying devices – they prevent fish from escaping by stupefying or stunning. This is done either by mechanical, chemical or by electrical stupefying. Lines – In lines, the fish is offered a bait which once taken makes them unable to escape .

5. Traps – A fish enters the trap voluntarily but is prevented from coming out by means of certain arrangements. Fishing in the air – Aerial traps – Fish that jump out of the water when faced with an obstacle are caught in the air by special devices. Bag nets – These are kept open vertically by the frame and horizontally by the current. Fish enter voluntarily and are caught by filtering. Dragged gear – These gears are towed through the water either on or near the bottom or on the surface and manner of capture is by filtration Seine nets – gears with long wings and towing warps with or without bags. The manner of capture is by surrounding a certain area and towing the both ends of the gear to a fixed point on the shore or on a vessel.

6. Surrounding nets – Nets that surround a shoal of fish not only from the sides but also from the bottom. Drive-in-nets –The fish to be caught are driven into the gear by swimming or diving fishermen. Lift nets –Sheets of netting are lowered into the water and lifted when the fish swim or creep on to them. Falling Gear – The manner of capture is to cover the fish with a gear and are normally operated in shallow waters Gill nets – Principle of gilling is made use of in gill nets. Fishes are caught by their gills ( gilling ) in the meshes of a gill net. Tangle nets –Fishes are caught by entangling any protruding part of their body to the net

7. Thank you