搜索结果: 1-15 共查到“海洋科学 on bacterial”相关记录62条 . 查询时间(0.306 秒)
Terrestrial organic matter and light penetration: Effects on bacterial and primary production in lakes
Terrestrial organic matter light penetration on bacterial primary production in lakes
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2014/4/17
We investigated productivity at the basal trophic level in 15 unproductive lakes in a gradient ranging from clear-water to brown-water (humic) lakes in northern Sweden. Primary production and bacteria...
Abundance and single-cell activity of bacterial groups in Antarctic coastal waters
Abundance single-cell activity
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2014/4/17
We estimated the abundance and single-cell activity of bacterial groups in waters off the West Antarctic
Peninsula (WAP) using a combination of microautoradiography and fluorescent in situ hybridizat...
Oxygen isotopic fractionation and exchange during bacterial nitrite oxidation
Oxygen isotopic fractionation exchange bacterial nitrite oxidation
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2014/4/17
We elucidate the controls on thed18 O values of microbially produced nitrate by tracking thed18O of nitrite and nitrate during bacterial nitrite oxidation, which is the final step of the nitrification...
The interplay between bacterial community composition and the environment determining function of inland water bacteria
bacterial community composition the environment determining function inland water bacteria
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2014/4/16
We hypothesized that habitats differing in water flow regime would differ in bacterial function either because of differences in the local environment, in bacterial community composition (BCC), or in ...
Oxygen isotopic exchange and fractionation during bacterial ammonia oxidation
fractionation during bacterial ammonia oxidation Oxygen isotopic
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2014/4/16
We examined the oxygen isotopic systematics for ammonia oxidation, the first step in the regeneration of
nitrate from ammonium. In particular, oxygen isotopic fractionation and exchange with water we...
Dynamics of organic-aggregate–associated bacterial communities and related environmental factors in Lake Taihu, a large eutrophic shallow lake in China
organic-aggregate–associated aihu a large eutrophic shallow lake
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2014/4/16
To investigate the spatial and temporal variations of organic-aggregate–associated bacterial communities
(OABC), a 25-month observation was conducted at two contrasting sites (Meiliang Bay and the la...
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
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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...
Aging of allochthonous organic carbon regulates bacterial production in unproductive boreal lakes
allochthonous organic carbo production in unproductive
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2014/4/18
We calculated average aquatic dissolved organic carbon (DOC) age (the time span from soil discharge to
observation) in water from the inlets and outlets of two unproductive Swedish lakes at different...
Bacterial diversity and morphology in deep ultraoligotrophic Andean lakes: Role of UVR on vertical distribution
Bacterial diversity morphology
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2014/4/18
We investigated the community composition and the relative size–shape distribution of bacterial assemblages
in deep transparent lakes, where bacteria may be affected by harmful ultraviolet radiation ...
Organic matter diagenesis and bacterial contributions to detrital carbon and nitrogen in the Amazon River system
Organic matter diagenesis bacterial contributions
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2014/4/18
Amino sugars and amino acids, including the bacterial biomarkers muramic acid and D-amino acids, were
measured to investigate the diagenetic alterations of and microbial contributions to detrital org...
Increased supply of ambient nitrogen has minimal effect on salt marsh bacterial production
Increased supply of ambient nitrogen salt marsh
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2014/4/18
We examined the role of chronic low-level nutrient enrichment on the productivity of heterotrophic marsh
bacteria via a marsh fertilization experiment in which we mimicked the conditions of widesprea...
Seasonal changes of bacterial and archaeal communities in the dark ocean: Evidence from the Mediterranean Sea
bacterial and archaeal communities dark ocean
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2014/4/17
The study site located in the northwestern Mediterranean Sea was visited nine times in 2005–2006 to collect
water samples from the epipelagic (5 m), mesopelagic (200 m, 600 m), and bathypelagic (1000...
Spatiotemporal dynamics of bacterial populations in the anoxic Cariaco Basin
Spatiotemporal dynamics bacterial populations the anoxic Cariaco Basin
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2014/4/21
Distributions of bacterial populations in the anoxic Cariaco Basin were studied over 2 yr (five cruises) at three stations using fluorescence in situ hybridization (FISH) and terminal restriction frag...
Major bacterial contribution to the ocean reservoir of detrital organic carbon and nitrogen
bacterial contribution the ocean reservoir detrital organic carbon nitrogen
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2014/4/21
Bacterial biomarkers (D-amino acids and muramic acid) were measured in various organic matter size fractions collected in the North Pacific and North Atlantic, and they were used to quantitatively est...
Dissolved organic matter and bacterial production and respiration in the sea-surface microlayer of the open Atlantic and the western Mediterranean Sea
Dissolved organic matter bacterial production respiration the sea-surface microlayer Atlantic the western Mediterranean Sea
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2014/4/21
The sea-surface microlayer (SML) is the boundary layer between the ocean and the atmosphere. We measured bacterial production and respiration along with dissolved organic carbon (DOC), nitrogen (DON),...