Sediment methane cycling dynamics, deep vs shallow lakes

Aspects of sediment methane cycling were measured in 3 shallow (mean depth ~2m) and three deep (mean depth ~6.5 m) lakes in the Foothills region of the Alaskan arctic. The overall goal was to identify lake size-dependent differences in rates and controls on methane consumption and production. Lakes...

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Bibliographic Details
Main Author: Whalen, Steve C.
Format: Dataset
Language:English
Published: NSF Arctic Data Center 2014
Subjects:
EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > DISSOLVED GASES
EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > LAKES
EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > LAKES
EARTH SCIENCE > BIOSPHERE > AQUATIC ECOSYSTEMS > BENTHIC HABITAT
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > BIOGEOCHEMICAL CYCLES
IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS > CHN ANALYZERS > CARBON, HYDROGEN, NITROGEN ANALYZERS
IN SITU/LABORATORY INSTRUMENTS > SAMPLERS > GRABBERS/TRAPS/COLLECTORS > SEDIMENT TRAPS
IN SITU/LABORATORY INSTRUMENTS > CORERS > SEDIMENT CORERS
IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS > CARBON ANALYZERS
IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS > OXYGEN ANALYZERS
IN SITU/LABORATORY INSTRUMENTS > SAMPLERS > BOTTLES/FLASKS/JARS > WATER BOTTLES
IN SITU/LABORATORY INSTRUMENTS > PROBES > PROBES
IN SITU/LABORATORY INSTRUMENTS > TEMPERATURE/HUMIDITY SENSORS > TEMPERATURE SENSORS
IN SITU/LABORATORY INSTRUMENTS > PROFILERS/SOUNDERS > PROFILERS
IN SITU/LABORATORY INSTRUMENTS > CORERS > CORING DEVICES
IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS > GAS CHROMATOGRAPHS
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > SPECTROMETERS/RADIOMETERS > SPECTROMETERS > SPECTROMETERS
FIELD SURVEY
STATION
1 METER TO 30 METERS
DAILY TO WEEKLY
inlandWaters
Arctic
Online Access:https://dx.doi.org/10.18739/a2bc3sx95
https://arcticdata.io/catalog/view/doi:10.18739/A2BC3SX95
Description
Summary:Aspects of sediment methane cycling were measured in 3 shallow (mean depth ~2m) and three deep (mean depth ~6.5 m) lakes in the Foothills region of the Alaskan arctic. The overall goal was to identify lake size-dependent differences in rates and controls on methane consumption and production. Lakes were sampled intensely during one summer each at a permanently established station at the mean depth. Lakes GTH 99, 100 and 114 were sampled during the summer of 2010, while GTH 112, Toolik and NE14 were sampled during the summer of 2011. In each lake the following were measured: depth distributions of basic sediment physical properties; depth distributions of methane and dissolved oxygen; sediment chlorophyll a; sedimentation rate (at maximum depth in each lake); chemistry of surficial sediment (total Fe, Mn, NO3, SO4), rates of methanogenesis and methane oxidation; response of methanogenesis to amendment with alternate electron acceptors (Fe, Mn, NO3, SO4), direct methanogenic substrates (acetate, H2, trimethylamine) and a methanogenic precursor (maltose). Methods are given in Bretz and Whalen (2014), Inland Waters 4:65-78.

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