• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.46 no.4
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• pp.292-301
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• 2010

For an effective management of fisheries resources, it is very important that to make clean inhabitation environment and to preserve fisheries resources. The material which is mainly used as fishing gear in modern times, is polyethylene, polypropylene, polyamide, etc., chemical fiber. And lost fishing gears which are make of these, occur ghost fishing and ocean pollution. To solve these problem, we development biodegradable fishing trap using the polybutylene succinate (PBS). Developed traps are for red snow crab (Chionoecetes japonicus) and shrimp, major traps in the East Sea, and we carried out fishing research using two kind traps in the coastal sea of Ayajin-port (Goseong) to analysis fishing efficiency of PE trap and PBS trap. As a result for fishing experiment (year 2005-2006) of red snow crab trap, two kind traps were almost the same in catches and length composition. During a experiment, parts of meshes, used for over 1 year, were cut by biodegradation. As a result for fishing experiment (year 2007) of shrimp trap, northern shrimp (Pandalus eous), coonstripe shrimp (Pandalus hypsinotus) and morotoge shrimp (Pandalopsis japonica) were catched, and the almost is northern shrimp. Two kind traps were almost the same in catches and length composition. In accordance with these result, it is recommended that the developed traps are have to commercialized because the fishing powers of PE traps and PBS traps were same. But biodegradation speed is have to controled in consideration of ocean microorganism volume and traps life.

• Journal of Navigation and Port Research
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• v.38 no.6
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• pp.637-643
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• 2014

This study aims to explore a set of indicators to be used for purification management. by estimating the total quantity of depositied waste in coastal waters, Through 3 rounds of Delphi technique, this study sorts out the following 5 variables to be used as major indicators determining priorities for purification in coastal areas: the ratio of re-deposition after collection, the area where fishing gear are lost, the total quantity of depositied waste of each coastal water, the total quantity of deposited waste in the past, and the quantity of depositied waste by unit area. Although the fact that the delphi surveys were done only on 27 specialists limits its external validity, this study will serve as a base for in-depth studies with more expanded panels that will provide better indicators for purification management in coastal waters of Korea.