搜索结果: 1-15 共查到“知识库 海洋科学 Molecular”相关记录19条 . 查询时间(0.14 秒)
The tip of the tail: molecular identification of seahorses for sale in apothecary shops and curio stores in California
Molecular forensics
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2015/12/11
Millions of seahorses a year are traded internationally, with many eventually sold at retail shops as
curios, as aquarium pets, and especially for use in traditional medicine. The entire genus is now...
Harmful phytoplankton ecology studies using an autonomous molecular analytical and ocean observing network
Harmful phytoplankton ecology studies an autonomous molecular analytical ocean observing network
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2014/4/8
Using autonomous molecular analytical devices embedded within an ocean observatory, we studied harmful algal bloom (HAB) ecology in the dynamic coastal waters of Monterey Bay, California. During studi...
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...
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...
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 ...
Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter
Absorption spectral slopes slope ratios indicators of molecular weight source photo bleaching chromo phoric dissolved organic matter
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2014/4/21
A new approach for parameterizing dissolved organic matter (DOM) ultraviolet-visible absorption spectra is presented. Two distinct spectral slope regions (275–295 nm and 350–400 nm) within log-transfo...
Molecular assessment of phosphorus and iron physiology in Trichodesmium populations from the western Central and western South Atlantic
Molecular assessment phosphorus iron physiology
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2014/4/22
Trichodesmium is capable of responding to low phosphorus (P) and low iron (Fe) concentrations through the
induction of alkaline phosphatase (AP) activity (an enzyme that hydrolyzes inorganic phosphat...
Quantitative estimates of labile and semi-labile dissolved organic carbon in the western Arctic Ocean: A molecular approach
Quantitative estimates labile semi-labile dissolved organic carbon western Arctic Ocean A molecular approach
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2014/4/21
A novel molecular approach based on carbon-normalized yields of combined amino acids was developed to quantify concentrations of labile (L), semi-labile (S), and refractory (R) dissolved organic carbo...
Molecular quantification of differential ingestion and particle trapping rates by the appendicularian Oikopleura dioica as a function of prey size and shape
Molecular quantification of differential ingestion particle trapping rates the appendicularian Oikopleura dioica function of prey size and shape
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2014/4/22
To investigate whether particles are ingested or merely trapped in the house of the appendicularian Oikopleura dioica, we developed a real-time quantitative polymerase chain reaction (qPCR) assay and ...
Bacterial release of dissolved organic matter during cell growth and decline: Molecular origin and composition
Bacterial release dissolved organic matter cell growth and decline Molecular origin and composition
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2014/5/5
Heterotrophic bacterial growth and the chemical composition of dissolved organic matter (DOM) produced by bacteria from freshwater and marine environments were monitored during experiments with artifi...
Molecular analysis of picocyanobacterial community structure along an Arabian Sea transect reveals distinct spatial separation of lineages
picocyanobacterial community structure lineages
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2014/5/5
We investigated the community structure of Synechococcus and Prochlorococcus along a transect in the
Arabian Sea during September 2001. The transect spanned contrasting oceanic conditions, allowing i...
Molecular analysis of photosynthetic picoeukaryote community structure along an Arabian Sea transect
Molecular Arabian Sea transect
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2014/5/5
We developed oligonucleotide probes, based on plastid 16S ribosomal DNA (rDNA) sequences, to target 10
different algal classes (Chlorarachniophyceae, Chrysophyceae, Cryptophyceae, Eustigmatophyceae, ...
Evolutionary animation: How do molecular phylogenies compare to Mayr’s reconstruction of speciation patterns in the sea?
Evolutionary animation molecular phylogenies
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2015/12/16
ernst Mayr used the geography of closely related species in various
stages of increasing divergence to ‘‘animate’’ the process of geographic, or allopatric, speciation. This approach was applied to a...
Molecular-level chemical characterization and bioavailability of dissolved organic matter in stream water using electrospray-ionization mass spectrometry
Molecular-level chemical characterization bioavailability dissolved organic matter stream water electrospray-ionization mass spectrometry
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2014/5/8
We used electrospray-ionization mass spectrometry (ESI-MS) to characterize, at the compound level, dissolved organic matter (DOM) composition and bioavailability in two streams. There was considerable...
Decrease in molecular weight of photosynthetic products of marine phytoplankton during early diagenesis
molecular weight photosynthetic products marine phytoplankton early diagenesis
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2014/5/14
Changes in the size and neutral aldose (NAld) composition of phytoplankton photosynthetic products during the early diagenetic process were experimentally examined using 13C as a tracer. Most (94.7%) ...