搜索结果: 61-75 共查到“理学 phytoplankton”相关记录280条 . 查询时间(0.128 秒)
How anthropogenic darkening of Lake Apopka induced benthic light limitation and forced the shift from macrophyte to phytoplankton dominance
Lake Apopka induced benthic light limitation forced the shift macrophyte to phytoplankton dominance
2014/4/17
Controversy exists about the historic shift of primary producer community structure (PPCS) in Lake Apopka,a shallow, 125-km2lake in central Florida, U.S.A. The controversial questions are: was a lake-...
Can photoinhibition control phytoplankton abundance in deeply mixed water columns of the Southern Ocean?
photoinhibition control phytoplankton abundance deeply mixed water columns the Southern Ocean
2014/4/17
To study how natural Southern Ocean phytoplankton communities acclimate to rapid fluctuations in irradiance levels that result from deep wind-driven mixing of the upper water column, we measured their...
The effect of CO2 on the photosynthetic physiology of phytoplankton in the Gulf of Alaska
CO2 the photosynthetic physiology phytoplankton the Gulf of Alaska
2014/4/16
In the high-nutrient, low-chlorophyll waters of the Gulf of Alaska, microcosm manipulation experiments were used to assess the effect of CO2 on growth and primary production under iron-limited and iro...
A model of phytoplankton acclimation to iron–light colimitation
phytoplankton acclimation iron–light colimitation
2014/4/16
We developed and calibrated a dynamic model for cellular carbon, chlorophyll (Chl), and iron under iron–light
colimitation. The model allows growth rate and two other state variables (Fep
: C and Ch...
Phytoplankton distribution and photosynthesis dynamics in the Chubut River estuary (Patagonia, Argentina) throughout tidal cycles
Phytoplankton distribution photosynthesis dynamics the Chubut River estuary throughout tidal cycles
2014/4/16
The aim of this study was to determine the effects of the tidal dynamics and physical forcing on phytoplankton distribution and photosynthesis dynamics in the Chubut River estuary, Argentina. Physical...
Production of chromophoric dissolved organic matter by marine phytoplankton
chromophoric dissolved organic matter marine phytoplankton
2014/4/16
Incubation experiments with axenic cultures of four common phytoplankton species of the generaChaetoceros,Skeletonema, Prorocentrum, and Micromonaswere performed to test for the production of fluoresc...
Nitrogen and phosphorus inputs control phytoplankton growth in eutrophic Lake Taihu, China
Nitrogen phosphorus inputs control phytoplankton growth eutrophic Lake Taihu
2014/4/16
Lake Taihu (Taihu) is the third largest freshwater lake in China and an important drinking water, fishing, and tourism resource for Jiangsu Province. Recent toxic cyanobacterial blooms caused by exces...
Contrasting spring and summer phytoplankton dynamics in the nearshore Southern California Bight
spring summer phytoplankton dynamics nearshore Southern California Bight
2014/4/16
We analyzed a 9-yr record of ocean color data from the Sea-viewing Wide Field-of-view Sensor (SeaWiFS)together with a 4-yr record of satellite-derived sea surface temperature (SST) measurements to inv...
Vertical distribution and composition of phytoplankton under the influence of an upper mixed layer
upper mixed layer aquatic communities phytoplankton species water column
2010/4/6
The vertical distribution of phytoplankton is of fundamental importance for the dynamics and structure of aquatic communities. Here, using an advection-reaction-diffusion model, we investigate the dis...
Synergistic effects of iron and temperature on Antarctic phytoplankton and microzooplankton assemblages
Synergistic effects iron and temperature Antarctic phytoplankton microzooplankton assemblages
2010/1/21
Iron availability and temperature are important limiting factors for the biota in many areas of the world ocean, and both have been predicted to change in future climate scenarios. However, the impact...
Spatial distribution of the iron supply to phytoplankton in the Southern Ocean: a model study
Spatial distribution the iron supply phytoplankton the Southern Ocean a model study
2010/1/21
An upgraded version of the biogeochemical model SWAMCO is coupled to the ocean-sea-ice model NEMO-LIM to explore processes governing the spatial distribution of the iron supply to phytoplankton in the...
Elevated CO2 increases sensitivity to ultraviolet radiation in lacustrine phytoplankton assemblages
Elevated CO2 increases sensitivity ultraviolet radiation lacustrine phytoplankton assemblages
2014/4/17
This study tests the effects of elevated CO2 and ultraviolet radiation (UVR) on phytoplankton photosynthesis through in situ incubations in Lake Giles, Pennsylvania. In a first experiment, CO2 was sup...
Eddy-induced cross-shelf phytoplankton transport along the downwelling coast off Western Australia
Leeuwin Current mesoscale eddies chlorophyll cross-shelf exchange geostrophic current finite-size Lyapunov exponent
2009/11/17
Along the downwelling coast off Western Australia, late-autumn/early-winter chlorophyll a blooms are observed on the continental shelf south of Shark Bay (26°S), in contrast with summer blooms in the ...
Bioavailability of organically bound Fe to model phytoplankton of the Southern Ocean
Bioavailability organically bound Fe phytoplankton Southern Ocean
2010/1/21
Iron (Fe) is known to be mostly bound to organic ligands and to limit primary productivity in the Southern Ocean. It is thus important to investigate the bioavailability of organically bound Fe. In th...
The Importance of Phytoplankton Photoadaptation in Influencing Estimates of Integral Photosynthesis
Phytoplankton Photoadaptation Estimates Integral Photosynthesis
2009/10/27
The rates of light limited (aB) and light saturated (pmaxB) photosynthesis per
unit chlorophyll often showed significant differences between samples collected
from the top and the bottom of the mixe...