Ware Daniel M, Thomson Richard E
Aquatic Ecosystem Associates, 3674 Planta Road, Nanaimo, BC V9T 1M2, Canada.
Science. 2005 May 27;308(5726):1280-4. doi: 10.1126/science.1109049. Epub 2005 Apr 21.
We addressed the question of bottom-up versus top-down control of marine ecosystem trophic interactions by using annual fish catch data and satellite-derived (SeaWiFS) chlorophyll a measurements for the continental margin of western North America. Findings reveal a marked alongshore variation in retained primary production that is highly correlated with the alongshore variation in resident fish yield. The highest productivity occurs off the coasts of Washington and southern British Columbia. Zooplankton data for coastal British Columbia confirm strong bottom-up trophic linkages between phytoplankton, zooplankton, and resident fish, extending to regional areas as small as 10,000 square kilometers.
我们利用北美西部大陆边缘的年度鱼类捕捞数据和卫星衍生（SeaWiFS）叶绿素a测量数据，探讨了海洋生态系统营养相互作用的自下而上与自上而下控制问题。研究结果表明，留存初级生产力存在显著的沿岸变化，这与当地鱼类产量的沿岸变化高度相关。最高生产力出现在华盛顿州和不列颠哥伦比亚省南部沿海。不列颠哥伦比亚省沿海的浮游动物数据证实了浮游植物、浮游动物和当地鱼类之间存在强大的自下而上营养联系，这种联系延伸到面积小至10000平方公里的区域。
