Fishing and Gear Technology

Unit 10-Maintenance and storage of gears

10.7. Factors affecting fishing gear design

10.7.3. Sea bottom conditions

Rough sea bottom conditions limits the operation of most of the fishing gears close to the ground except handlines, vertical longlines, bottom vertical long lines and traps. Trawling on rough bottom requires special rigging such as bobbin rig or rock hopper rig, improvements in trawl design to minimize gear damage or loss and selection of appropriate otter boards.