LMER sites require that the following policies be adhered
to for utilization of LMER data: The principal investigator should be sent
a notice stating reasons for acquiring any data and a description of the
publication intentions. The principal investigator for the data set should
be sent a copy of the report or manuscript prior to submission and be adequately
cited in any resultant publications. A copy of any resultant publications
should be sent to the principal investigator.
Below are listed the currently available Georgia
River's LMER data sets. Select the river of interest under a chosen data
BACTERIAL SECONDARY PRODUCTION
Measures of instantaneous bacterial production rates based on
incorporation of tritiated leucine into bacterial protein.
Conductivity, temperature and density measurements for vertical transects.
Conductivity, temperature and density measurements for horizontal (surface water) transects.
DISSOLVED ORGANIC CARBON
Measurements of dissolved organic carbon in surface and bottom
waters using high temperature combustion analytical techniques. For some
samples, humic substances' organic carbon concentrations are also included.
Natural fluoresecence of dissolved organic matter measured at
350nm excitation and 450nm emission.
Land use, land cover, hydrography and other data sets derived
from Geographic Information Systems.
MICROBIAL RESPIRATORY RATES
Changes in dissolved oxygen in dark incubation, measured by
precision Winkler techniques. Time zero values are also useful for ambient
dissolved oxygen. Some enrichment experiments using this technique are
Measurements of concentrations of dissolved ammonium, nitrite,
nitrate, silicate and phosphate in surface and occasionally bottom waters
and sample salinities are included. Standard analytical techniques have
been modified for high levels of humic substances.
Measurements of suspended sediment concentrations, % organic
matter, CHN concentrations, and chlorophyll a / phaeopigment. For some
data sets, samples were separated by settling tubes into fractions containing
particles with different settling velocities.
These are experiments conducted to answer additional specific
questions and which do not classify easily under the above headings. These
experiments were carried out in the field or in the labs of the individual
update: 16 February 2002