Diane M. McKnight 2015-01-15 Algal and Moss Biomass in Reactivated Channel tabular digitial data McMurdo Dry Valleys LTER McMurdo Dry Valleys LTER 10.6073/pasta/7d91a3caaf24e3d71051e78c01a7f9c3 https://mcm.lternet.edu/content/algal-and-moss-biomass-reactivated-channel As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, water was diverted to a relict stream channel in order to reactivate the streamflow. The purpose of this experiment was to quantify the time scales of response to the arrival of water after many years of dessication. This table contains data showing the chlorophyll, carbon, nitrogen, and hydrogen concentrations of algal communities and some mosses from the relict channel. The data constitutes the reactivated channel's algal and moss biomass data, along with measurements of the amount of carbon and nitrogen associated with algal mats for construction of nutrient budgets. 1995-01-23 1997-01-13 ground condition Data and metadata were migrated to the DEIMS system in 2015. Along, a new revision was entered to properly reflect date-ranges of the study and the egneral improvement of data related services. Data from this table was initially included in the raw data files specified under the variable for 'file name'. These are Microsoft Excel version 6.0 files and can be found in the McMurdo LTER data manager's home directory on INSTAAR's Unix system. Once submitted to INSTAAR, the data manager combined all of the stream biology files that included information for chlorophyll/biomass for the Relict Channel and removed any variables that had no direct influence. The resulting file is represented in the "relcbims.dat" file used on the web page. As needed Also referred to as 'RC Dev' Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.283615112305 163.283615112305 -77.631050109863 -77.631050109863 100m 100m meter Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.294113159180 163.294113159180 -77.633735656738 -77.633735656738 130m 130m meter "Coordinates are same as those for RC1H, but samples taken from stream rather than hyporheic zone." Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.285720825195 163.285720825195 -77.631942749023 -77.631942749023 110m 110m meter "Coordinates are same as those for RC1, but samples taken from hyporheic zone rather than stream." Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.285720825195 163.285720825195 -77.631942749023 -77.631942749023 110m 110m meter Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.281509399414 163.281509399414 -77.630149841309 -77.630149841309 98m 98m meter Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.279418945313 163.279418945313 -77.628135681152 -77.628135681152 93m 93m meter Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.268905639648 163.268905639648 -77.626571655273 -77.626571655273 85m 85m meter Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.271011352539 163.271011352539 -77.624549865723 -77.624549865723 75m 75m meter Parent Stream: Harnish Creek Tributary, also known as Relict Channel 163.279418945313 163.279418945313 -77.629028320313 -77.629028320313 96m 96m meter LTER Core Areas population dynamics None <cntorg>McMurdo Dry Valleys LTER</cntorg> <onlink>http://mcmlter.org/</onlink> <span property="dc:title" content="McMurdo Dry Valleys LTER" class="rdf-meta element-hidden"></span> Not Applicable Not Applicable Field and/or Lab Methods Within each transect, algal mats were visually identified as either orange, red, black, or green. Algal and moss samples were collected using a cork borer or a known area of substrate was scraped. Samples were stored in bottles until taken back to the lab for processing. Samples were filtered onto GF/C glass fiber filters. They were then extracted in buffered acetone and analyzed spectrophotometrically using the trichromatic method. Concentrations are reported in units of ug/cm2 for each pigment quantified (chlorophylls a, b, c, carotenoids, and phaeophyton). Carbon, hydrogen and nitrogen samples were air-dried (approximately 60 degrees C), then a weighed amount of algae was taken from the filter and analyzed on a Carlo Erba NA1500NCS element analyzer. Within each transect, algal mats were visually identified as either orange, red, black, or green. Algal and moss samples were collected using a cork borer or a known area of substrate was scraped. Samples were stored in bottles until taken back to the lab for processing. Samples were filtered onto GF/C glass fiber filters. They were then extracted in buffered acetone and analyzed spectrophotometrically using the trichromatic method. Concentrations are reported in units of ug/cm2 for each pigment quantified (chlorophylls a, b, c, carotenoids, and phaeophyton). Carbon, hydrogen and nitrogen samples were air-dried (approximately 60 degrees C), then a weighed amount of algae was taken from the filter and analyzed on a Carlo Erba NA1500NCS element analyzer. unknown relcbims Dataset code Code representing stream algal and moss biomass dataset The data provider Code representing stream algal and moss biomass dataset Location Code Abbreviated Location The data provider Abbreviated Location Date/time Date of sample The data provider calendar date/time dd/mm/yyyy gregorian calendar Algae Type Type of algae invertebrate is associated with (red, black, green or orange) The data provider Type of algae invertebrate is associated with (red, black, green or orange) Replicate# Replication number of sample The data provider dimensionless Area sampled cm2 Area from which sample was drawn The data provider squareCentimeters Chl a (microg/cm2) Concentration of chlorophyll a pigment The data provider microg/cm2 0.01 Chl b (microg/cm2) Concentration of chlorophyll b pigment The data provider microg/cm2 0.01 Chl c (microg/cm2) Concentration of chlorophyll c pigment The data provider microg/cm2 0.01 Carotenoids (microg/cm2) Concentration of carotenoid pigment The data provider microg/cm2 Phaeophyton (microg/cm2) Concentration of phaeophyton pigment The data provider microg/cm2 % Nitrogen Amount of nitrogen associated with algal mat - Percent The data provider dimensionless 0.01 % Nitrogen Comments Comments regarding % nitrogen measurement The data provider Comments regarding % nitrogen measurement % Carbon Amount of carbon associated with algal mat The data provider dimensionless 0.01 % Carbon Comments Comments regarding % carbon measurement The data provider Comments regarding % carbon measurement % Hydrogen Amount of hydrogen associated with algal mat The data provider dimensionless 0.01 % Hydrogen Comments Comments regarding % hydrogen measurement The data provider Comments regarding % hydrogen measurement File name Original file name in which this information was submitted The data provider Original file name in which this information was submitted McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 1 column , https://mcm.lternet.edu/sites/default/files/relcbims.csv None 2015-01-15 2015-01-15 McMurdo Dry Valleys LTER http://mcmlter.org/ Biological Data Profile of the Content Standards for Digital Geospatial Metadata devised by the Federal Geographic Data Committee. 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