搜索结果: 31-45 共查到“理学 plankton”相关记录56条 . 查询时间(0.109 秒)
Mapping the spatial variability of plankton metabolism using nitrate and oxygen sensors on an autonomous underwater vehicle
Mapping the spatial variability plankton metabolism using nitrate oxygen sensors autonomous underwater vehicle
2014/5/16
It is now possible to make highly resolved vertical (<1 m) and horizontal (3 m at constant depth and ~400 m when undulating from surface to 100 m) measurements of nitrate concentration in the upper oc...
Assessing plankton and other particles in situ with the SOLOPC
Assessing plankton other particles situ with the SOLOPC
2014/5/16
We combined a Sounding Oceanographic Lagrangian Observer float with a Laser Optical Plankton Counter (LOPC) and a fluorometer to make an autonomous biological profiler, the SOLOPC. The instrument sens...
Spatial variations in time-integrated plankton metabolic rates in Sagami Bay using triple oxygen isotopes and O2 : Ar ratios
Spatial variations plankton metabolic rates
2014/4/21
Plankton metabolic rates, such as rates of gross, net community production and community respiration, were
measured in the surface waters using triple oxygen isotopes and O2
: Ar ratios. The 17
D a...
We combined a Sounding Oceanographic Lagrangian Observer float with a Laser Optical Plankton Counter
(LOPC) and a fluorometer to make an autonomous biological profiler, the SOLOPC. The instrument sen...
Moina macrocopa (Straus): A Plankton Crustacean as a Vector for Fungus-Like Fish Parasites
Moina macrocopa fungi fungus-like organisms mycosis in fish
2010/3/25
The authors investigated the occurrence of fungi and fungus-like organisms (chromistan organisms) growing on dead Moina macrocopa specimens in 3 bodies of water of varied trophicity. Dead specimens of...
The trace-metal composition of size-fractionated plankton in the South China Sea: Biotic versus abiotic sources
size-fractionated plankton South China Sea
2014/4/22
We report the elemental composition (P, Si, Al, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) in the size-fractionated
plankton and suspended particulate matter (SPM) in the surface waters of the South China Se...
Partitioning of organic production in marine plankton communities: The effects of inorganic nutrient ratios and community composition on new dissolved organic matter
Partitioning of organic production marine plankton communities The effects of inorganic nutrient ratios community composition new dissolved organic matter
2014/4/23
We investigated the partitioning of carbon, nitrogen, and phosphorus between particulate and dissolved production using 11-m3 marine mesocosms (bags) in a Norwegian fjord with a salinity of 28.3, a ch...
Small-scale spatial structure in plankton distributions
Small-scale spatial structure plankton distributions
2010/1/14
The observed filamental nature of plankton populations suggests that stirring plays an important role in determining their spatial structure. If diffusive mixing is neglected, the various interacting ...
Variation in the transfer of energy in marine plankton along a productivity gradient in the Atlantic Ocean
the transfer of energy marine plankton productivity gradient Atlantic Ocean
2014/5/5
Plankton play a key role in oceanic carbon flux as the primary biological mechanism for the sequestration of carbon out of the atmosphere into surface waters. The transfer of energy between phytoplank...
Light supply, plankton biomass, and seston stoichiometry in a gradient of lake mixing depths
Light supply plankton biomass seston stoichiometry a gradient of lake mixing depths
2014/5/4
We derive from a dynamic model that light availability, phytoplankton density, and the carbon : nutrient ratio of phytoplankton biomass should all be negatively related to mixed surface layer depth, w...
Plankton food web structure in a eutrophic polymictic lake with a history of toxic cyanobacterial blooms
Plankton food web structure polymictic lake
2014/4/30
We studied the seasonal dynamics of phytoplankton, bacterioplankton, heterotrophic nanoflagellates, ciliates, and
metazoan plankton in the highly eutrophic polymictic Lake Kastoria (Greece), wh...
The North Atlantic climate and the northwestern Mediterranean plankton variability
The North Atlantic climate the northwestern Mediterranean plankton variability
2014/5/9
Climate variability across three distinct spatial scales and the interannual changes of planktonic copepods and jellyfish were studied from November 1966 to December 1993. The results obtained identif...
Seasonal and annual variability in the spatial patterns of plankton biomass in Chesapeake Bay
Seasonal and annual variability spatial patterns plankton biomass Chesapeake Bay
2014/5/9
We conducted high-resolution, underway sampling in April, July, and October for 6 yr (1995-2000) in the large estuary, Chesapeake Bay. This period included climatological extremes in freshwater inputs...
Element stoichiometries of individual plankton cells collected during the Southern Ocean Iron Experiment (SOFeX)
Element stoichiometries individual plankton cells collected Southern Ocean Iron Experiment SOFeX
2014/5/19
During the Southern Ocean Iron Experiment (SOFeX), we analyzed Si, P, S, Mn, Ni, and Zn in individual diatoms, autotrophic flagellates, and heterotrophic flagellates with synchrotron-based X-ray fluor...
Circadian cycles in growth and feeding rates of heterotrophic protist plankton
Circadian cycles growth and feeding rates heterotrophic protist plankton
2014/5/19
Growth and feeding rates of four species of planktonic marine heterotrophic protists showed pronounced diel cycles. In most cases, rates were higher during the day and lower at night. However, for the...