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Algal and Moss Biomass in Reactivated Channel
Diane
McKnight
diane.mcknight@colorado.edu
https://orcid.org/0000-0002-4171-1533
McMurdo Dry Valleys LTER
http://mcmlter.org/
2015-01-15
English
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.
population dynamics
LTER Core Areas
Data Policies
This data package is released under the Creative Commons Attribution 4.0 International License (CC BY 4.0; http://creativecommons.org/licenses/by/4.0/), which allows consumers (hereinafter referred to as “Data Users”) to freely reuse, redistribute, transform, or build on this work (even commercially) so long as appropriate credit is provided. Accordingly, Data Users are required to properly cite this data package in any publications or in the metadata of any derived products that result from its use (in whole or in part). A recommended citation is provided on the summary metadata page associated with this data package in the McMurdo Dry Valleys LTER Data Catalog (https://mcmlter.org/data), and a generic citation may be found on the summary metadata page in the repository where this data package was obtained. When these data contribute significantly to the contents of a publication, Data Users must also acknowledge that data were provided by the NSF-supported McMurdo Dry Valleys Long Term Ecological Research program (OPP-1637708). This data package has been released in the spirit of open scientific collaboration. Hence, Data Users are strongly encouraged to consider consultation, collaboration, and/or co-authorship (as appropriate) with the data package creator(s). Data Users should be aware these data may be actively used by others for ongoing research; thus, coordination may be necessary to prevent duplicate publication. Data Users should also recognize that misinterpretation of data may occur if they are used outside the context of the original study. Hence, Data Users are urged to contact the data package creator(s) if they have any questions regarding methodology or results. While substantial efforts are made to ensure the accuracy of this data package (with all its components), complete accuracy cannot be guaranteed. Periodic updates to this data package may occur, and it is the responsibility of Data Users to check for new versions. This data package is made available “as is” and comes with no warranty of accuracy or fitness for use. The creator(s) of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use, or misuse of these data. Finally, as a professional courtesy, we kindly request Data Users notify the primary contact referenced in the metadata when these data are used in the production of any derivative work or publication. Notification should include an explanation of how the data were used, along with a digital copy of the derived product(s). Thank you.
https://mcm.lternet.edu/content/algal-and-moss-biomass-reactivated-channel
Also referred to as 'RC Dev' Parent Stream: Harnish Creek Tributary, also known as Relict Channel
163.283615112305
163.283615112305
-77.631050109863
-77.631050109863
100
100
meter
Parent Stream: Harnish Creek Tributary, also known as Relict Channel
163.294113159180
163.294113159180
-77.633735656738
-77.633735656738
130
130
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
110
110
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
110
110
meter
Parent Stream: Harnish Creek Tributary, also known as Relict Channel
163.281509399414
163.281509399414
-77.630149841309
-77.630149841309
98
98
meter
Parent Stream: Harnish Creek Tributary, also known as Relict Channel
163.279418945313
163.279418945313
-77.628135681152
-77.628135681152
93
93
meter
Parent Stream: Harnish Creek Tributary, also known as Relict Channel
163.268905639648
163.268905639648
-77.626571655273
-77.626571655273
85
85
meter
Parent Stream: Harnish Creek Tributary, also known as Relict Channel
163.271011352539
163.271011352539
-77.624549865723
-77.624549865723
75
75
meter
Parent Stream: Harnish Creek Tributary, also known as Relict Channel
163.279418945313
163.279418945313
-77.629028320313
-77.629028320313
96
96
meter
1995-01-23
1997-01-13
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.
McMurdo Dry Valleys LTER
http://mcmlter.org/
McMurdo Dry Valleys LTER
http://mcmlter.org/
McMurdo Dry Valleys LTER
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.
relcbims
relcbims.csv
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0
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https://mcm.lternet.edu/sites/default/files/relcbims.csv
DATASET_CODE
Dataset code
Code representing stream algal and moss biomass dataset
string
Code representing stream algal and moss biomass dataset
LOCATION_CODE
Location Code
Abbreviated Location
string
Abbreviated Location
DATE_TIME
Date/time
Date of sample
date
dd/mm/yyyy
ALGAE TYPE
Algae Type
Type of algae invertebrate is associated with (red, black, green or orange)
string
Type of algae invertebrate is associated with (red, black, green or orange)
REPLICATE #
Replicate#
Replication number of sample
dimensionless
real
AREA SAMPLED (cm2)
Area sampled cm2
Area from which sample was drawn
squareCentimeters
real
Null
None given
CHL-A (mg/cm2)
Chl a (microg/cm2)
Concentration of chlorophyll a pigment
microg/cm2
0.01
real
Null
None given
CHL-B (mg/cm2)
Chl b (microg/cm2)
Concentration of chlorophyll b pigment
microg/cm2
0.01
real
Null
None given
CHL-C (mg/cm2)
Chl c (microg/cm2)
Concentration of chlorophyll c pigment
microg/cm2
0.01
real
Null
None given
CAROTENOIDS (mg/cm2)
Carotenoids (microg/cm2)
Concentration of carotenoid pigment
microg/cm2
real
Null
None given
PHAEPHYTON (mg/cm2)
Phaeophyton (microg/cm2)
Concentration of phaeophyton pigment
microg/cm2
real
Null
None given
% NITROGEN
% Nitrogen
Amount of nitrogen associated with algal mat - Percent
dimensionless
0.01
real
Null
None given
% Nitrogen Comments
% Nitrogen Comments
Comments regarding % nitrogen measurement
string
Comments regarding % nitrogen measurement
% CARBON
% Carbon
Amount of carbon associated with algal mat
dimensionless
0.01
real
Null
None given
% Carbon Comments
% Carbon Comments
Comments regarding % carbon measurement
string
Comments regarding % carbon measurement
% HYDROGEN
% Hydrogen
Amount of hydrogen associated with algal mat
dimensionless
0.01
real
Null
None given
% Hydrogen Comments
% Hydrogen Comments
Comments regarding % hydrogen measurement
string
Comments regarding % hydrogen measurement
File name
File name
Original file name in which this information was submitted
string
Original file name in which this information was submitted