搜索结果: 46-56 共查到“理学 Gulf of Mexico”相关记录56条 . 查询时间(0.08 秒)
Trichodesmium in the western Gulf of Mexico: 15N2 -fixation and natural abundance stable isotope evidence
Trichodesmium natural abundance stable isotope
2014/4/22
Surface aggregations of the diazotrophic cyanobacterium Trichodesmium were encountered at nearly every
station along a 300-km transect in the northwestern Gulf of Mexico during July 2000. 15N2-fixati...
How climate controls the flux of nitrogen by the Mississippi River and the development of hypoxia in the Gulf of Mexico
climate flux of nitrogen Mississippi River development of hypoxia Gulf of Mexico
2014/4/23
The intensification of agriculture in the central U.S. is commonly cited as the primary cause of the increase in nitrogen (N) flux by the Mississippi River since the 1950s and the development of seaso...
Nitrogen fixation and release of fixed nitrogen by Trichodesmium spp. in the Gulf of Mexico
Nitrogen fixation release fixed nitrogen Trichodesmium spp. Gulf of Mexico
2014/5/4
During a 3-yr study in the Gulf of Mexico, we measured dinitrogen (N2) fixation and nitrogen (N) release by Trichodesmium and compared these rates with water column N demand and the estimated N necess...
Geophysical and geochemical signatures of Gulf of Mexico seafloor brines
Geophysical and geochemical signatures Gulf of Mexico seafloor brines
2010/1/12
Geophysical, temperature, and discrete depth-stratified geochemical data illustrate differences between an actively venting mud volcano and a relatively quiescent brine pool in the Gulf of Mexico alon...
Dimethylsulfoniopropionate(DMSP) assimilation by Synechococcus in the Gulf of Mexico and northwest Atlantic Ocean
Dimethylsulfoniopropionate Synechococcus
2014/5/13
A variety of bacterial phylogenetic groups assimilate dimethylsulfoniopropionate (DMSP), an organic sulfur
compound that can satisfy most of the sulfur (S) demand of bacteria in the surface waters of...
Effect of seasonal sediment storage in the lower Mississippi River on the flux of reactive particulate phosphorus to the Gulf of Mexico
seasonal sediment storage lower Mississippi River reactive particulate phosphorus Gulf of Mexico
2014/5/19
The annual surface water flux of total reactive (i.e., potentially bioavailable) particulate P from the Mississippi River was estimated by measuring the reactive (including labile, iron, organic, and ...
Mechanisms maintaining sympatric distributions of two ladyfish (Elopidae: Elops) morphs in the Gulf of Mexico and western North Atlantic Ocean
sympatric distributions two ladyfish the Gulf of Mexico western North Atlantic Ocean
2014/5/19
Two morphs of ladyfish exist in the western North Atlantic and adjacent waters: Elops saurus, a high-count morph (79-87 myomeres or vertebrae) in the north, and Elops sp., a low-count morph (73-78 myo...
Identification and enumeration of bacteria assimilating dimethylsulfoniopropionate (DMSP) in the North Atlantic and Gulf of Mexico
Identification and enumeration bacteria assimilating dimethylsulfoniopropionate North Atlantic Gulf of Mexico
2014/5/14
The algal-derived compound dimethylsulfoniopropionate (DMSP), which is the precursor of the climatically active gas dimethylsulfide, is potentially an important source of carbon and sulfur to marine b...
Predicting the response of Gulf of Mexico hypoxia to variations in Mississippi River nitrogen load
Gulf of Mexico hypoxia Mississippi River nitrogen load
2014/5/20
The effects of nutrient loading from the Mississippi River basin on the areal extent of hypoxia in the northern Gulf of Mexico were examined using a novel application of a dissolved oxygen model for a...
Use of bomb radiocarbon to validate otolith section ages of red snapper Lutjanus campechanus from the northern Gulf of Mexico
bomb radiocarbon otolith section ages red snapper Lutjanus campechanus northern Gulf of Mexico
2014/6/10
The red snapper Lutjanus campechanus is an important recreational and commercial fish species in the northern Gulf of Mexico. Management approaches have varied in part because of uncertainty of their ...
Smectite Illitization in Pliocene-Age Gulf of Mexico Mudrocks
Clay Diagenesis Core Analysis Gulf of Mexico Illite Smectite TEM XRD
2011/12/1
Abstract: Utilizing high-resolution transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS) and X-ray diffraction (XRD) techniques, we have studied the transition from shallower s...