搜索结果: 1-15 共查到“海洋生物学 activity”相关记录22条 . 查询时间(0.14 秒)
HANDS-ON OCEANOGRAPHY | A Classroom Activity Using Satellite Sea Surface Temperatures to Predict Coral Bleaching
HANDS-ON OCEANOGRAPHY Satellite Sea Surface Temperatures Predict Coral Bleaching
2015/7/3
Familiarize students with sea surface temperature (SST) and the use of satellites to remotely sense SST.Familiarize students with the effect of SST on coral health.
Characterization of alkaline phosphatase activity in the North and South Pacific Subtropical Gyres: Implications for phosphorus cycling
alkaline phosphatase activity iin the North South Pacific Subtropical Gyres:phosphorus cycling
2014/4/8
We characterized alkaline phosphatase (AP) activity (APA) and report AP kinetic parameters in the North and South Pacific Subtropical Gyres (NPSG and SPSG, respectively) to evaluate the relative impor...
Unraveling the role of land use and microbial activity in shaping dissolved organic matter characteristics in stream ecosystems
role of land use microbial activity in shaping dissolved organic matter in stream ecosystems
2014/4/17
Surface water samples were collected from 43 streams distributed throughout watersheds of mixed land use in southern Ontario, Canada. Absorbance and fluorescence spectroscopy with parallel factor anal...
Living at the border: A community and single-cell assessment of lake bacterioneuston activity
Living at the border A community single-cell assessment lake bacterioneuston activity
2014/4/17
We assessed the physicochemical properties of the surface microlayer (SML: first 900mm) and its underlying water (ULW: 0.2–0.5-m depth) and compared the composition and activity of their bacterial com...
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 (+...
Effect of Saharan dust inputs on bacterial activity and community composition in Mediterranean lakes and reservoirs
Effect of Saharan dust inputs bacterial activity community composition Mediterranean lakes and reservoirs
2014/4/18
We assessed the effects of Saharan dust inputs of particulate matter (PM), total phosphorus (TP), total nitrogen, and water soluble organic carbon (WSOC) on bacterial abundance (BA) in two alpine lake...
Nitrification in Mono Lake, California: Activity and community composition during contrasting hydrological regimes
Nitrification in Mono Lake California Activity and community composition contrasting hydrological regimes
2014/4/21
Rates of nitrification, geochemical variables, and the associated ammonia oxidizer microbial community were investigated in the water column of Mono Lake, California, between August 2002 and August 20...
Standing stocks and activity of Archaea and Bacteria in the western Arctic Ocean
Standing stocks activity of Archaea and Bacteria the western Arctic Ocean
2014/4/23
This study examined the abundance, cell size, and activity of Bacteria and Archaea in the Chukchi Sea and the Canada Basin of the western Arctic Ocean in the spring (May-June) and summer (July-August)...
Vertical distribution of aggregates (>110 μm) and mesoscale activity in the northeastern Atlantic: Effects on the deep vertical export of surface carbon
Vertical distribution of aggregates (>110 μm) mesoscale activity in the northeastern Atlantic Effects on the deep vertical export of surface carbon
2014/4/22
Spatial and temporal variability in the distribution of marine aggregates (>110 mm) was studied using underwater video profilers in an area off the Iberian Peninsula and Azores Islands dominated by me...
Bicarbonate transport and extracellular carbonic anhydrase activity in Bering Sea phytoplankton assemblages: Results from isotope disequilibrium experiments
Bicarbonate transport extracellular carbonic anhydrase activity Bering Sea phytoplankton assemblages isotope disequilibrium experiments
2014/5/5
We used a 14C isotope disequilibrium technique to provide quantitative estimates of both direct HCO3- transport and extracellular CA activity in Bering Sea phytoplankton assemblages. The method reveal...
Distribution and activity of Bacteria and Archaea in the deep water masses of the North Atlantic
Distribution and activity Bacteria Archaea in the deep water masses North Atlantic
2014/5/5
We determined the distribution and activity of the major prokaryotic groups (Bacteria, Cren-, and Euryarchaeota) inhabiting the deep water masses of the North Atlantic by following the path of the Nor...
Presence and regulation of alkaline phosphatase activity in eukaryotic phytoplankton from the coastal ocean: Implications for dissolved organic phosphorus remineralization
Presence and regulation alkaline phosphatase activity eukaryotic phytoplankton the coastal ocean Implications for dissolved organic phosphorus remineralization
2014/5/4
The biologically important constituents of the dissolved organic phosphorus (DOP) pool, their bioavailability, and their cycling in coastal systems are still poorly understood. Here we use the enzyme ...
Effect of ultraviolet radiation on alkaline phosphatase activity and planktonic phosphorus acquisition in Canadian boreal shield lakes
Effect of ultraviolet radiation alkaline phosphatase activity planktonic phosphorus acquisition Canadian boreal shield lakes
2014/5/13
We examined how ultraviolet radiation (UVR) affects the activity of alkaline phosphatase (APase), a common extracellular enzyme. APase activity declined up to 57% under UVR exposure and decreased more...
Linking bacterial richness with viral abundance and prokaryotic activity
Linking bacterial richness viral abundance prokaryotic activity
2014/5/9
We measured relative bacterial and archaeal richness and its covariation with physical and other biological parameters during six cruises in the North Sea over prokaryotic productivity levels ranging ...
Proteolytic enzymes in coastal surface seawater: Significant activity of endopeptidases and exopeptidases
Proteolytic enzymes coastal surface seawater endopeptidases exopeptidases
2014/5/9
We assayed proteolytic enzymes in coastal surface seawater using 16 types of fluorogenic substrates, including those for aminopeptidase, trypsin, elastase, and chymotrypsin. Hydrolysis rates were simi...