搜索结果: 61-75 共查到“海洋生物学 phytoplankton”相关记录154条 . 查询时间(0.102 秒)
Resilience of North Sea phytoplankton spring bloom dynamics: An analysisof long-term data at Helgoland Roads
North Sea phytoplankton spring bloom Helgoland Roads
2014/4/18
Analyzing one of the most extensive long-term data series in the North Sea,the Helgoland Roads time series,we investigated the changes in the factors that potentially drive phytoplankton bloom dynamic...
Influence of water-column depth and mixing on phytoplankton biomass, community composition, and nutrients
water-column depth mixing phytoplankton biomass community composition nutrients
2014/4/18
We independently manipulated mixing intensity (strong artificial mixing vs. background turbulence) and water-column depth (2 m, 4 m, 8 m, and 12 m) in order to explore their separateand combined effec...
The role of unchelated Fe in the iron nutrition of phytoplankton
The role of unchelated Fe the iron nutrition phytoplankton
2014/4/18
The important question of iron bioavailability in the sea has become complicated by the discovery that marine phytoplankton can take up Fe bound in very stable chelates via reductive processes, and so...
A simplification of plankton dynamics using coagulation theory provides predictions of the maximum algal concentration sustainable in aquatic systems. These predictions have previously been tested suc...
Optical scattering properties of phytoplankton: Measurements and comparison of various species at scattering angles between 1° and 170°
Optical scattering properties of phytoplankton Measurements and comparison of various species scattering angles between 1° and 170°
2014/4/18
We describe the results of a laboratory scattering experiment performed to investigate differences in the optical scattering properties between five common phytoplankton species (Dunaliella tertiolect...
Physiological steady state of phytoplankton in the field? An example based on pigment profile of Emiliania huxleyi (Haptophyta) during a light shift
Physiological steady state of phytoplankton in the field An example based on pigment profile Emiliania huxleyi Haptophyta light shift
2014/4/18
A calcifying strain of Emiliania huxleyi was used to study the photoacclimation process during a shift from low (LL) to high (HL) photon flux density (PFD) under nutrient-replete and pH- and [CO2]-con...
Resource levels, allometric scaling of population abundance, and marine phytoplankton diversity
Resource levels allometric scaling population abundance marine phytoplankton diversity
2014/4/18
We analyzed the relationship between population abundance and cell size in phytoplankton assemblages from coastal, shelf, and open-ocean environments. Our results show that across the entire size spec...
Relative influence of nitrogen and phosphorous availability on phytoplankton physiology and productivity in the oligotrophic sub-tropical North Atlantic Ocean
Relative influence of nitrogen and phosphorous availability on phytoplankton physiology and productivity in the oligotrophic sub-tropical North Atlantic Ocean
2014/4/18
Nutrient addition bioassay experiments were performed in the low-nutrient, low-chlorophyll oligotrophic subtropical North Atlantic Ocean to investigate the influence of nitrogen (N), phosphorus (P), a...
The influence of dissolved organic carbon on bacterial phosphorus uptake and bacteria-phytoplankton dynamics in two Minnesota lakes
The influence of dissolved organic carbon bacterial phosphorus uptake bacteria-phytoplankton dynamics two Minnesota lakes
2014/4/18
The balance of production in any ecosystem is dependent on the flow of limiting nutrients into either the autotrophic or heterotrophic components of the food web. To understand one of the important co...
Vitamin B12 and iron colimitation of phytoplankton growth in the Ross Sea
Vitamin B12 iron colimitation phytoplankton growth Ross Sea
2014/4/22
Primary production in the Ross Sea, one of the most productive areas in the Southern Ocean, has previously been shown to be seasonally limited by iron. In two of three bottle incubation experiments co...
Nutrient quality drives differential phytoplankton community composition on the southwest Florida shelf
Nutrient quality drives differential phytoplankton community composition southwest Florida shelf
2014/4/22
During May 2003, the dry season, the southwest Florida shelf was surveyed for nutrient concentrations and phytoplankton community composition concurrently with plankton nutritional and physiological s...
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...
Contrasting biogeochemistry of six trace metals during the rise and decay of a spring phytoplankton bloom in San Francisco Bay
biogeochemistry six trace metals during the rise decay of a spring phytoplankton bloom San Francisco Bay
2014/4/22
The spring 2003 phytoplankton bloom in South San Francisco Bay (South Bay) affected the cycling of Mn, Co, Zn, Ni, and Pb, but not Cu. We followed this diatom bloom for 2 months, capturing a peak in c...
Microzooplankton grazing in the coastal Gulf of Alaska: Variations in top-down control of phytoplankton
Microzooplankton grazing coastal Gulf of Alaska Variations top-down contro phytoplankton
2014/4/22
Microzooplankton grazing rates on three phytoplankton size fractions (<5, 5-20, and >20 μm) were measured during spring and summer 2001 in the northern coastal Gulf of Alaska (CGOA). To a first approx...
Ammonium uptake and growth limitation in marine phytoplankton
Ammonium uptake growth limitation marine phytoplankton
2014/4/21
We used continuous culture techniques and a sensitive fluorescence method to quantify relationships among ammonium (NH4+) concentration, cellular NH4+ uptake rates, and growth rate limitation for five...