搜索结果: 1-15 共查到“海洋科学 Reservoir”相关记录15条 . 查询时间(0.021 秒)
Denitrification alternates between a source and sink of nitrous oxide in the hypolimnion of a thermally stratified reservoir
Denitrification alternates sink of nitrous oxide
2014/4/2
Nitrogen loading from developed watersheds to aquatic ecosystems can stimulate microbial denitrification, a
process that reduces nitrate (NO{
3
) to dinitrogen (N2) or nitrous oxide (N2O), the latt...
Population regulation of the spiny water flea (Bythotrephes longimanus) in a reservoir: Implications for invasion
Population regulation the spiny water flea a reservoir: Implications for invasion
2014/4/2
We conducted a 3-yr study of the population dynamics of the invasive cladoceranBythotrephes longimanusin Island Lake Reservoir (Minnesota) and compared our results to other human-constructed reservoir...
The relative importance of heterotrophic bacteria to pelagic ecosystem dynamics varies with reservoir trophic state
heterotrophic bacteria pelagic ecosystem dynamics varies reservoir trophic state
2014/4/17
We tested the hypothesis that nutrient sequestration and carbon flow through heterotrophic bacteria is relatively highest in oligotrophic systems and decreases with trophic state in 17 reservoirs in T...
Particle dispersal due to interplay of motions in the surface layer of a small reservoir
surface layer reservoir Particle dispersal
2014/4/16
Horizontal dispersion mechanisms must be well defined in order to determine the origin and fate of
heterogeneous distributions of biogeochemical material. Here data from an intensive field campaign i...
Role of hydrophobic extracellular polysaccharide of Aulacoseira granulata (Bacillariophyceae) on aggregate formation in a turbulent and hypereutrophic reservoir
Role of hydrophobic extracellular polysaccharide Aulacoseira granulata
2014/4/21
The highest density of aggregates (1.4 3 103
L21
) in the hypereutrophic Barra Bonita Reservoir (mean depth of
10.2 m) coincided with the peak population density of the diatom Aulacoseira granulata...
Major bacterial contribution to the ocean reservoir of detrital organic carbon and nitrogen
bacterial contribution the ocean reservoir detrital organic carbon nitrogen
2014/4/21
Bacterial biomarkers (D-amino acids and muramic acid) were measured in various organic matter size fractions collected in the North Pacific and North Atlantic, and they were used to quantitatively est...
Agent-based modeling of the complex life cycle of a cyanobacterium (Anabaena)ina shallow reservoir
Agent-based modeling complex life cycle cyanobacterium a shallow reservoir
2014/4/18
The cyanobacteriumAnabaena flos-aquaeand many other phytoplankton species have a complex life cycle that includes a resting stage (akinete). We present a new agent-based (also known as individual-base...
Hydrogeomorphic features mediate the effects of land use/cover on reservoir productivity and food webs
Hydrogeomorphic land use cover on reservoir productivity food webs
2014/4/18
Although effects of land use/cover on nutrient concentrations in aquaticsystems are well known, half or more of the variation in nutrient concentration remains unexplained by land use/cover alone. Hyd...
Major bacterial contribution to the ocean reservoir of detrital organic carbon and nitrogen
Major bacterial contribution ocean reservoir detrital organic carbon and nitrogen
2014/4/18
Bacterial biomarkers (D-amino acids and muramic acid) were measured in various organic matter size fractions collected in the North Pacific and North Atlantic, and they were used to quantitatively est...
Dissolved oxygen response to wind–inflow interactions in a stratified reservoir
Dissolved oxygen response wind–inflow interactions
2014/4/22
Results of a field campaign and numerical simulations are used to show how physical mechanisms impose
length scales and timescales that determine the dominant biogeochemical process. As an example, t...
The role of surface vertical mixing in phytoplankton distribution in a stratified reservoir
The role of surface vertical mixing phytoplankton distribution stratified reservoir
2014/4/23
We investigated convection caused by surface cooling and mixing attributable to wind shear stress and their roles as agents for the transport of phytoplankton cells in the water column by carrying out...
Suspended minerogenic particles in a reservoir: Light-scattering features from individual particle analysis
Suspended minerogenic particles a reservoir Light-scattering features individual particle analysis
2014/4/22
Light-scattering attributes of minerogenic particles in a reservoir, where these particles dominate over a wide range of light-scattering levels, were characterized by an individual particle analysis ...
Translocation of soil organic matter following reservoir impoundment in boreal systems: Implications for in situ productivity
Translocation of soil organic matter reservoir impoundment in boreal systems Implications for in situ productivity
2014/5/4
To evaluate the effect of reservoir flooding on carbon cycling over time, we studied sedimentary environments in three natural lakes that existed prior to impoundment and that have been incorporated i...
The internal wave field in Sau reservoir: Observation and modeling of a third vertical mode
The internal wave field Sau reservoir Observation and modeling third vertical mode
2014/5/9
Water withdrawal from Mediterranean reservoirs in summer is usually very high. Because of this, stratification is often continuous and far from the typical two-layered structure, favoring the excitati...
A transplant experiment to identify the factors controlling bacterial abundance, activity, production, and community composition in a eutrophic canyon-shaped reservoir
transplant experiment factors controlling bacterial abundance activity production community composition eutrophic canyon-shaped reservoir
2014/5/26
We performed a transplant experiment in eutrophic Sau reservoir to assess the factors that control bacterial abundance, activity, growth rate, and community composition. Samples from the lacustrine an...