Limnology and Oceanography: Methods
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An empirically validated method for characterizing pelagic habitats in the Gulf of Mexico using ocean model data
Limnology and Oceanography: Methods - Tập 17 Số 6 - Trang 362-375 - 2019
AbstractMesoscale oceanic features such as eddies generate considerable
environmental heterogeneity within the pelagic oceans, but their transient
nature makes it difficult to identify both their spatial and temporal extent and
their effects on the distribution of pelagic fauna. Simplifying these complex
features using a biologically meaningful classification system will likely be a
useful first s...
An approach to correct the effects of phytoplankton vertical nonuniform distribution on remote sensing reflectance of cyanobacterial bloom waters
Limnology and Oceanography: Methods - Tập 15 Số 3 - Trang 302-319 - 2017
AbstractCyanobacterial blooms occur frequently in eutrophic lakes and their
potentially harmful effects affected the security of drinking water and food
sources, biodiversity, and economic activities, and attracted the attention of
general public worldwide. Cyanobacteria could move vertically in the water
column by regulating their buoyancy, which leads to the assumption of
homogeneous water inval...
Relationship between wind speed and gas exchange over the ocean revisited
Limnology and Oceanography: Methods - Tập 12 Số 6 - Trang 351-362 - 2014
The relationship between gas exchange and wind speed is used extensively for
estimating bulk fluxes of atmospheric gases across the air‐sea interface. Here,
I provide an update on the frequently used method of Wanninkhof (1992). The
update of the methodology reflects advances that have occurred over the past two
decades in quantifying the input parameters. The general principle of obtaining
a rela...
Inner filter correction of dissolved organic matter fluorescence
Limnology and Oceanography: Methods - Tập 11 Số 12 - Trang 616-630 - 2013
The fluorescence of dissolved organic matter (DOM) is suppressed by a phenomenon
of self‐quenching known as the inner filter effect (IFE). Despite widespread use
of fluorescence to characterize DOM in surface waters, the advantages and
constraints of IFE correction are poorly defined. We assessed the effectiveness
of a commonly used absorbance‐based approach (ABA), and a recently proposed
controll...
Application of the isotope pairing technique in sediments where anammox and denitrification coexist
Limnology and Oceanography: Methods - Tập 1 Số 1 - Trang 63-73 - 2003
The isotope pairing technique (IPT) is a well‐established 15N method for
estimation of denitrification. Presence of anammox, the anaerobic oxidation of
NH4+ to N2 with NO2− results in violation of central assumptions on which the
IPT is built. It is shown that anammox activity causes overestimation of the N2
production calculated by the IPT. However, experiments with different additions
of 15NO3− ...
Online δ13C analysis of volatile fatty acids in sediment/porewater systems by liquid chromatography-isotope ratio mass spectrometry
Limnology and Oceanography: Methods - Tập 4 Số 10 - Trang 346-357 - 2006
A simple and efficient method for the solid‐phase extraction of dissolved organic matter (SPE‐DOM) from seawater
Limnology and Oceanography: Methods - Tập 6 Số 6 - Trang 230-235 - 2008
A simple protocol is presented for the solid‐phase extraction of dissolved
organic matter (SPE‐DOM) from seawater using commercially prepacked cartridges.
The method does not require major instrumentation and can be performed in the
field. Modified styrene divinyl benzene polymer type sorbents (Varian PPL and
ENV) and sorbents of a silica structure bonded with different hydrocarbon chains
(Varian ...
Evaluation of diagnostic pigments to estimate phytoplankton size classes
Limnology and Oceanography: Methods - Tập 18 Số 10 - Trang 570-584 - 2020
AbstractPhytoplankton accessory pigments are commonly used to estimate
phytoplankton size classes, particularly during development and validation of
biogeochemical models and satellite ocean color‐based algorithms. The diagnostic
pigment analysis (DPA) is based on bulk measurements of pigment concentrations
and relies on assumptions regarding the presence of specific pigments in
different phytopla...
Application of cross‐flow ultrafiltration for isolating exopolymeric substances from a marine diatom (Amphora sp.)
Limnology and Oceanography: Methods - Tập 7 Số 6 - Trang 419-429 - 2009
The increasing recognition of the roles that exopolymeric substances (EPS) play
in the aquatic environment necessitates obtaining sufficient quantities of
purified EPS for exploration of its physical, chemical, and biological
properties, as well as for quantitative and structural analysis of its
composition. For this purpose, three preconcentration/ purification techniques,
i.e., 1) ethanol precip...
An interlaboratory comparison for the quantification of aqueous dimethylsulfide
Limnology and Oceanography: Methods - Tập 12 Số 11 - Trang 784-794 - 2014
An interlaboratory comparison (ILC) was conducted to evaluate the proficiency of
multiple laboratories to quantify dimethylsulfide (DMS) in aqueous solution. Ten
participating laboratories were each supplied with blind duplicate test
solutions containing dimethylsulfoniopropionate hydrochloride (DMSP HCl)
dissolved in acidified artificial seawater. The test solutions were prepared by
the coordinat...
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