搜索结果: 1-15 共查到“海洋生物学 Evidence”相关记录29条 . 查询时间(0.049 秒)
Hydrogen peroxide dynamics in an agricultural headwater stream: Evidence for significant nonphotochemical production
Hydrogen peroxide dynamics nonphotochemical production
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2014/4/2
Hydrogen peroxide (H2O2
) plays key roles in aquatic systems, including metal redox cycling and degradation
of organic matter into bioavailable forms. Abiotic photoproduction, via photo-oxidation of...
Evidence highlights threat to Caribbean coral reef growth
coral reef growth
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2014/7/11
Many Caribbean coral reefs have either stopped growing or are on the threshold of starting to erode with potential impacts to people, according to research from The University of Queensland (UQ).
Experimental evidence of a low-oxygen refuge for large zooplankton
Experimental evidence a low-oxygen refuge large zooplankton
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2014/4/4
We tested the hypothesis that hypoxic zones in the metalimnion and hypolimnion of lakes can provide a refuge against fish predation for large zooplankton. Experiments were run in a large indoor mesoco...
Molecular evidence for the occurrence of ctenophoreMertensia ovumin the northern Baltic Sea and implications for the status of theMnemiopsis leidyiinvasion
Molecular evidence occurrence ctenophore Mertensia ovum in the northern Baltic Sea the Mnemiopsis leidyiinvasion
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2014/4/17
Nucleotide sequence analysis of 18S ribosomal RNA gene (rRNA), internal transcribed spacer, and 5.8S rRNA was used for taxonomic identification of ctenophores collected in the northern Baltic Sea, whe...
Evidence of warming effects on phytoplankton productivity rates and their dependence on eutrophication status
warming effects phytoplankton productivity rates eutrophication status
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2014/4/17
Using 31-yr data from measurements in a lake that has experienced change in eutrophication status, I showed that the effects of global warming on chlorophyll a (Chl a)–normalized maximum rates of phot...
Molecular evidence for anaerobic ammonium–oxidizing (anammox) bacteria in continental shelf and slope sediments off northwest Africa
Molecular evidence anaerobic ammonium–oxidizing bacteria in continental shelf slope sediments off northwest Africa
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2014/4/16
The presence and abundance of anaerobic ammonium–oxidizing (anammox) bacteria was investigated in continental shelf and slope sediments (300–3000 m water depth) off northwest Africa in a combined appr...
No empirical evidence for community-wide top-down control of prey fish density and size by fish predators in lakes
No empirical evidence community-wide top-down control prey fish density size by fish predators in lakes
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2014/4/16
I tested relationships between fish predator and prey densities or size across 66 lakes of the European temperate zone, covering mean depths between 1 and 22 m and a phytoplankton biomass range betwee...
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...
Evidence for the inherent unsteadiness of a river plume: Satellite observations of the Niagara River discharge
inherent unsteadiness of a river plume Satellite observations Niagara River discharge
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2014/4/21
We present satellite data from the Niagara River plume showing that a large eddy, or bulge, forms and grows in the plume near the mouth of the river. The plume consists of a semicircular bulge region ...
Supersaturated N2O in a perennially ice-covered Antarctic lake: Molecular and stable isotopic evidence for a biogeochemical relict
Supersaturated N2O perennially ice-covered Antarctic lake Molecular and stable isotopic evidence biogeochemical relict
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2014/4/21
The east lobe of Lake Bonney, a permanently ice-covered lake in the McMurdo Dry Valleys, Antarctica, has a mid-depth maximum N2O concentration of 43.3 μmol N L-1 (>700,000% saturation with respect to ...
Tracing13 C-enriched dissolved and particulate organic carbon in the bacteriacontaining coral reef spongeHalisarca caerulea: Evidence for DOM feeding
Tracing13 C-enriched dissolved particulate organic carbon bacteriacontaining coral reef spongeHalisarca caerulea =DOM feeding
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2014/4/18
Here we report on the trophodynamics of the bacteria-containing coral reef sponge Halisarca caerulea. The assimilation and respiration of the13 C-enriched substrates glucose, algal-derived dissolved a...
Biogeochemical budgets in the eastern boundary current system of the North Atlantic: Evidence of net heterotrophy and nitrogen fixation
Biogeochemical budgets the eastern boundary current system the North Atlantic:net heterotrophy and nitrogen fixation
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2014/4/22
Thermohaline and chemical data from three WOCE (World Ocean Circulation Experiment) cruises conducted in 1997 and 1998 define the MedBox region, bounded by the Strait of Gibraltar, 24°N, 41°N, and 22°...
Does low temperature constrain the growth rates of heterotrophic protists? Evidence and implications for algal blooms in cold waters
low temperature growth rates of heterotrophic protists Evidence and implications algal blooms cold waters
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2014/4/23
Literature review and synthesis of growth rates of aquatic protists focused on the role of temperature in the formation of massive annual algal blooms in high-latitude ecosystems. Maximal growth rates...
Evidence for phosphorus, nitrogen, and iron colimitation of phytoplankton communities in Lake Erie
Evidence for phosphorus nitrogen iron colimitation of phytoplankton communities Lake Erie
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2014/4/22
Three nutrient enrichment experiments involving the addition and removal of iron (Fe) alone, as well as in combination with phosphorus (P) and/or nitrogen (N), were conducted in the offshore and nears...
North to Alaska: Evidence for conveyor belt transport of Dungeness crab larvae along the west coast of the United States and Canada
North to Alaska: Evidence conveyor belt transport Dungeness crab larvae west coast United States and Canada
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2014/4/22
We propose and evaluate the hypothesis that Dungeness crab (Cancer magister) larvae from the northwestern coast of the United States and Canada can be transported northward to southeastern Alaska. Lar...