全球变化对海洋渔业的影响及对策

人类行为引发的全球性捕捞过度、水体富营养化、气候温暖化和臭氧层被破坏等都地世界渔业产生极大的影响，而捕捞过度使鱼群抵御环境变化的能力降低，并直接破坏渔业资源，从而放大全球变化对海洋渔业的影响。水体富化造成的有害赤潮及鱼虾病害频发、往往给业，尤其是增养殖渔业带来巨大经济损失，温暖化引起的海水升温和盐度改变，不仅直接影响海洋生物的生理、繁殖及时空分布，而且通过对海平面、上升流、厄尔尼诺现象，珊瑚礁、信

Impact of global change on marine fisheries and adaptation options

Anthropogenically generated global overfishing, water eutrophication, climatic, warming and ozone layer degradation all have great impacts on fisheries. Overfishing decreases the ability of fish stocks to adapt to the global environmental changes. Eutrophication causes a frequent occurrence of harmful algal bloom and fish diseases. which often causes a great economic loss to the fisheries, especially aquiculture industry. Temperature increase in sea water due to global change not only directly affects the physiology, reproduction and spatial and temporal distribution of marine organisms, but also causes indirect impact by change altering sea level, upwelling, El Nino Event, coral reef, trade wind, runoff, salinity and ozone layer. Eutrophication and global warming initiate a long term, and often irreversable changes in the community stucture and function of aquatic ecosystems, and then become two most important factors contributing to fisheries. Effective fishery management and pollution control are critical in sustaining fishery development.