The sea ice in Polar Oceans provides a unique environment utilised by a diverse group of organisms ranging in size from single-celled algae within the ice to meter-long algal assemblages, dominated by diatoms, attached to the lower surface of the ice, and from protozoans to marine mammals. ...
- 《Journal of Geophysical Research Oceans》 被引量: 241发表: 1987年 An investigation into iron-stimulated phytoplankton productivity in epipelagic Lake Erie during thermal stratification using trace metal clean techniques We tested the hypothesis that phytoplankton productivity in pelagic Lake Erie is ...
NASA’s OceanColor (http://oceancolor.gsfc.nasa.gov/) and NOAA’s National Oceanographic Data Center (http://www.nodc.noaa.gov/) websites. Sea ice cover impedes measurement of ocean color from space, reducing the apparent areas of the polar oceans in the winter hemisphere (upper panels)....
despite its signicance in the distributionof nutrients to the world oceans, especially the lower latitudes, and controlling global climate.In order to capture the response of the phytoplankton to environmental change across thevast Southern Ocean, a method with high spatio-temporal resolution is desira...
The evolution of cost efficient swimming in marine mammals: limits to energetic optimization Mammals re–entered the oceans less than 60 million years ago. The transition from a terrestrial to an aquatic lifestyle required extreme morphological and... Terrie,M.,Williams - 《Philosophical Transactions...
(SAZ) of the Southern Ocean there is evidence for enhanced ocean productivity during glacials5,6,7, consistent with the Fe fertilization effect. In contrast, for the Antarctic zone (AZ)—the productive but Fe-limited Southern Ocean south of the Antarctic Polar Front (Fig.1)—there is ...
xanthorhodopsin proton pump supports growth when chlorophyll-based photosynthesis is iron-limited. The abundance of xanthorhodopsin transcripts in natural diatom communities of the surface oceans is anticorrelated with the availability of dissolved iron. Thus, we propose that these proton pumps convey a...
In this paper we use an updated hemispheric data set “n = 1171” of modern samples from the North Atlantic, Arctic and North Pacific oceans (Fig. 1; de Vernal et al., 1997, de Vernal et al., 2001, de Vernal et al., 2005a), in order to explore empirically the relationship of di...
The Polar Oceans and Their Role in Shaping the Global Environment (American Geophysical Unionp 63–76, 1994). 29. Guay, C. K. & Falkner, K. Barium as a tracer of Arctic halocline and river waters. Deep Sea Res. Part II Top. Stud. Oceanogr. 44, 1543–1569 (1997). 30. Chan, L....
Changes in the productivity of the oceans are reflected in changes of plankton biomass. Plankton contributes approximately half of the global primary production, supports marine food webs, influences the biogeochemical process in the ocean, and strongly affects commercial fisheries30,31,32. Indeed, an...