渔业扩张与珊瑚礁白化之间的关联性分析——以南海珊瑚礁为例

Association between fishery expansion and coral reef bleaching——Take one of coral reef of the South China sea for example

南海位于印度-太平洋中部,是我国重要领海.近年来,同世界范围内其他大型海洋生态系统一样,南海珊瑚礁也正面临着大规模白化这一问题的困扰,而以渔业为中心的人为海上经济活动所造成的诸多不利影响及其规模的不断变化则成为环境变化因素以外的重要白化诱发因素之一.在分析了南海大型海洋生态区数十年的海捕相关数据并利用MTI(RMTI)分析后发现,珊瑚礁鱼类的捕捞量明显呈现逐年上升的趋势,而被捕获珊瑚礁鱼类体长却明显逐年下降,同时MTI(RMTI)也呈下降态势,这在一定程度上说明渔业扩张会对珊瑚礁白化造成影响.

The South China Sea is located in the central part of the Indian-Pacific Ocean,which is an important territorial sea in China.In recent years,like other large marine ecosystems around the world,coral reefs in the South China Sea are also facing the problem of large-scale whitening.Many adverse effects are caused by fishery and scale changes.Based on the analysis of several decades of fishing data in the large marine ecosystem of the South China Sea and MTI(RMTI),we find that:The catch of coral reef fish is increasing year by year.The body length of captured coral reef fishes decreased year by year.MTI(RMTI)also showed a downward trend.The expansion of fisheries will affect coral reef bleaching.