Department of Environmental Earth System Science, Stanford University, Stanford, CA 94305, USA.
Science. 2012 Jun 15;336(6087):1408. doi: 10.1126/science.1215065. Epub 2012 Jun 7.
Phytoplankton blooms over Arctic Ocean continental shelves are thought to be restricted to waters free of sea ice. Here, we document a massive phytoplankton bloom beneath fully consolidated pack ice far from the ice edge in the Chukchi Sea, where light transmission has increased in recent decades because of thinning ice cover and proliferation of melt ponds. The bloom was characterized by high diatom biomass and rates of growth and primary production. Evidence suggests that under-ice phytoplankton blooms may be more widespread over nutrient-rich Arctic continental shelves and that satellite-based estimates of annual primary production in these waters may be underestimated by up to 10-fold.
浮游植物大量繁殖被认为仅限于无海冰的北冰洋大陆架海域。在这里，我们记录了楚科奇海完全冻结的浮冰下的大规模浮游植物大量繁殖，近年来，由于冰层变薄和融化池塘的增多，该海域的透光率增加。该繁殖期的特征是硅藻生物量高、生长和初级生产力高。有证据表明，在营养丰富的北极大陆架上，冰下浮游植物大量繁殖可能更为普遍，而基于卫星的这些水域的年初级生产力估计可能被低估了多达 10 倍。
