搜索结果: 1-15 共查到“海洋科学 regulation”相关记录19条 . 查询时间(0.219 秒)
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...
Alkaline phosphatase activity and regulation in the North Pacific Subtropical Gyre
Alkaline phosphatase activity regulation the North Pacific Subtropical Gyre
2014/4/17
Alkaline phosphatase (AP) activity (APA) was measured at several stations in the North Pacific Subtropical Gyre in July 2008, and in a series of nutrient addition experiments: nitrate plus ammonium (+...
Regulation of the nitrogen biogeochemistry of mountain lakes by subsidies of terrestrial dissolved organic matter and the implications for climate studies
the nitrogen biogeochemistry mountain lakes subsidies terrestrial dissolved organic matter the implications for climate
2014/4/16
table isotopes of nitrogen (N) were analyzed in modern sediments of mountain lakes, dissolved organic matter(DOM), and sediment cores spanning the past 12,000 yr to test the hypothesis that spatial an...
Regulation of spatial and temporal variability of carbon flux in six hard-water lakes of the northern Great Plains
Regulation of spatial temporal variability carbon flux six hard-water lakes northern Great Plains
2014/4/17
Six hard-water lakes were sampled May-August for 14 yr in a 52,000 km2 catchment to identify the mechanisms that regulate the spatial and temporal variability of net atmospheric exchange of CO2 of lak...
The regulation of calcium in Daphnia magna reared in different calcium environments
Daphnia magna calcium environments
2014/4/18
The specific content, dissolved uptake rate, dietary assimilation efficiency (AE), and efflux rate constant (ke
) of
calcium (Ca) were quantified in juvenile (4-d) and adult (10-d) Daphnia magna cul...
Ecological, landscape, and climatic regulation of sediment geochemistry in North American sockeye salmon nursery lakes: Insights for paleoecological salmon investigations
sediment geochemistry Ecological landscape climatic
2014/4/17
We used multiple linear regressions across a Northeast Pacific region 56-lake set to examine the influence of
sockeye salmon spawner densities and limnological, climatic, and watershed characteristic...
The Regulation of Northern Overturning by Southern Hemisphere Winds
Northern Overturning Southern Hemisphere Winds Coarse-resolution models Antarctic Circumpolar Current
2008/12/10
Coarse-resolution models are used to study the interaction of zonal wind stress at the latitude of Drake Passage and the production of northern deep water. A nearly linear response to wind stress at t...
Stoichiometric regulation of carbon and phosphorus in P-deficient Daphnia magna
Stoichiometric regulation carbon phosphorus P-deficient Daphnia magna
2014/4/21
Daphnia magna were fed phosphorus-sufficient (+P) and P-deficient (2P) green algae Chlamydomonas reinhardtii (carbon : phosphorus ratio of C: P = 90 and 930 in molar, respectively) for 5 d to produce ...
Stoichiometric regulation of carbon and phosphorus in P-deficient Daphnia magna
Stoichiometric regulation of carbon phosphorus P-deficient Daphnia magna
2014/4/18
Daphnia magna were fed phosphorus-sufficient (+P) and P-deficient (2P) green algae Chlamydomonas reinhardtii (carbon : phosphorus ratio of C: P = 90 and 930 in molar, respectively) for 5 d to produce ...
Rates and regulation of anaerobic ammonium oxidation and denitrification in the Black Sea
Rates and regulation anaerobic ammonium oxidation denitrification Black Sea
2014/4/18
We performed incubation experiments with 15N-labeled nitrogen compounds to investigate the vertical distribution of pathways of N2 production through the suboxic zone of the central Black Sea and the ...
Phylogenetic diversity in cadmium : phosphorus ratio regulation by marine phytoplankton
Phylogenetic diversity cadmium phosphorus ratio regulation marine phytoplankton
2014/4/22
We examined the effect of irradiance and growth rate on cadmium : phosphorus ratio in five species of phytoplankton representing four different phylogenetic groups to determine the relative importance...
Patterns and regulation of dissolved organic carbon: An analysis of 7,500 widely distributed lakes
Patterns regulation dissolved organic carbon 7,500 widely distributed lakes
2014/4/22
Dissolved organic carbon (DOC) is a key parameter in lakes that can affect numerous features, including microbial metabolism, light climate, acidity, and primary production. In an attempt to understan...
In situ mussel feeding behavior in relation to multiple environmental factors: Regulation through food concentration and tidal conditions
mussel feeding behavior multiple environmental factors
2014/4/22
Feeding behavior of mussels (Mytilus edulis) was measured in situ using a video camera and expressed as the
mean percentage of valve gape aperture (VA), concomitant with environmental and biological ...
Temporal dynamics and regulation of lake metabolism
Temporal dynamics and regulation lake metabolism
2014/4/22
We studied temporal dynamics and regulation of oxygen metabolism in the upper mixed layer of a nutrientrich shallow Danish lake by continuous measurements of oxygen, irradiance, wind, and temperature ...
Regulation of nutrient uptake in eutrophic lowland streams
Regulation of nutrient uptake eutrophic lowland streams
2014/5/4
We studied nutrient uptake in relation to water chemistry, stream hydrodynamics, and ecosystem metabolism in two eutrophic lowland streams located near Berlin, Germany. Ambient nutrient uptake rates r...