摘要
以对太平洋与大西洋现象的观察和分析为主线,论述了年际与年代际变动及其可能的机制,综述了气候-海洋变动生态响应国际、国内的研究现状。在太平洋和大西洋都出现了类似的浮游动物、鱼类群落组成和丰度的年际及年代际变动的现象,并发现了直接与某些强E lN in^o事件对应的从营养盐到叶绿素含量变动的信号,虽然目前尚缺乏物理-化学-生物过程上长期、有力的观测证据,但是海流的强弱变动很可能是导致这种生态响应的关键驱动力。国内在该领域的研究相对比较薄弱,未来需要着力解决该领域中存在的生态响应机制、区域响应形态不清等关键的科学问题。
The impact of large-scale climate-ocean variability on marine ecosystem has been observed by comparing the sign, amplitude and frequency of climatic and biotic variations. Of particular interest are the responses to ENSO and NAO in the Pacific and Atlantic Ocean, respectively. Some of the well-documented effects involve the inter-annual and inter-decadal fluctuations of zooplankton distribution and fish stocks, as well as remarkable nutrient and chlorophyll concentration variation during the transition period from El Nino to La Nina. Of the mechanisms that have been proposed to explain these responses, the change of ocean current is most probably a key forcing, though it seems to have little supporting evidence. In fact, the pattern and mechanism of eco-response to climate-ocean variability vary with the domain. They are mostly kept unknown in China＇ marginal sea. To achieve better understanding of such a challenging field, interdisciplinary studies are required.
出处
《海洋学研究》
北大核心
2005年第3期14-22,共9页
Journal of Marine Sciences
基金
国家自然科学基金重点资助项目(40331004)
