Perry Allison L, Low Paula J, Ellis Jim R, Reynolds John D
Centre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
Science. 2005 Jun 24;308(5730):1912-5. doi: 10.1126/science.1111322. Epub 2005 May 12.
We show that the distributions of both exploited and nonexploited North Sea fishes have responded markedly to recent increases in sea temperature, with nearly two-thirds of species shifting in mean latitude or depth or both over 25 years. For species with northerly or southerly range margins in the North Sea, half have shown boundary shifts with warming, and all but one shifted northward. Species with shifting distributions have faster life cycles and smaller body sizes than nonshifting species. Further temperature rises are likely to have profound impacts on commercial fisheries through continued shifts in distribution and alterations in community interactions.
我们发现，北海已开发和未开发鱼类的分布对近期海水温度的升高均有显著响应，在25年的时间里，近三分之二的物种在平均纬度或深度或两者上都发生了变化。对于北海具有北界或南界范围的物种，其中一半已随变暖出现边界移动，除一个物种外，其他所有物种均向北移动。分布发生变化的物种比未发生变化的物种具有更快的生命周期和更小的体型。进一步的温度上升可能会通过分布的持续变化和群落相互作用的改变，对商业渔业产生深远影响。
