统计资料表明，１９９９年南海三省（区）拥有渔船７４１７５艘，２０００年南海区渔船普查结果初步显示，“三证不齐”和“三无”渔船占其中的４０％。由于渔船管理不善，捕捞强度的盲目增长，使南海区渔业资源严重衰退，渔业生态环境日益恶化，渔船单产下降，渔获组成低龄化 Statistics show that in 1999, 74175 fishing boats were owned by the three provinces (autonomous regions) in the South China Sea. According to the results of the fishing boat survey in the South China Sea in 2000, 40% of them were “three kinds of missing cards” and “three-no” fishing boats. Due to the poor management of fishing vessels and the blind growth of fishing intensity, the fishery resources in the South China Sea area have been seriously declining, the ecological environment of fisheries has deteriorated day by day, the yield of fishing vessels has dropped, and the age of catches has become younger