Titlebook: Dissolved Organic Matter in Lacustrine Ecosystems; Energy Source and Sy K. Salonen,T. Kairesalo,R. I. Jones Book 1992 Springer Science+Busi

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强制令

小歌剧

Gradient-dominated ecosystems: sources and regulatory functions of dissolved organic matter in freshn. As the dissolved organic compounds generated in the wetland and littoral interface regions move toward the open-water regions of the ecosystems, partial utilization effects a selective increase in organic recalcitrance. Even though DOC from allochthonous and from interface sources is more recalci

neologism

Littoral-pelagial interchange and the decomposition of dissolved organic matter in a polyhumic lake from humic substances. A bacterial production efficiency of 31–38% could account for the microbial respiration in the water. The results indicated that bacterial, or detrital matter (originating largely from the littoral zone), could not obviate the need for algal food, and that a great deal of par

欢乐东方

Effects of different molecular weight fractions of dissolved organic matter on the growth of bacteri–66% in different MW fractions, largely depending on the nutrient concentrations, but the highest growth efficiencies were observed in HMW fractions and with glucose. The growth of algae was clearly lowest in the < 1000 MW fraction. In dim light no net growth of algae could be found. In contrast, ad

滔滔不绝的人

Vertical distributions of bacteria and algae in a steeply stratified humic lake under high grazing pphytes, . spp. and ., stayed mainly in the upper hypolimnion close to the oxic-anoxic boundary zone where only a small proportion of . was continuously present. Unpalatable . chrysophytes with silicified plates and bristles, and small, presumably heterotrophic, flagellates stayed in the oxic epilimn

薄荷醇

Migrations of haemoglobin-rich , in a small, steeply stratified, humic lake with an anoxic hypolimnicording to vertical trap experiments, large . visited the anoxic hypolimnion and might harvest its abundant food resources. The high haemoglobin content of large individuals seems a specific adaptation to allow access to low oxygen water and hence to maximize grazing potential, in both epi- and hypo

bronchiole

adjacent

dry-eye

Negotiating Economic Policy with the IMFsed a temporary decline in DOC concentrations in bog pools. Changes in DOC appear to affect the availability of mercury for methylation. Addition of aluminum to a small acidic lake caused a two-fold decline in DOC..Fertilization of Lake 227 caused a considerable increase in DOC, and in ratios of DOC