Diane M. McKnight 2015-01-20 tabular digitial data McMurdo Dry Valleys LTER McMurdo Dry Valleys LTER 10.6073/pasta/abcf64aa6d05c1999888d87d6df3bde5 https://mcm.lternet.edu/content/stream-algae-ash-free-dry-mass As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the abundance and species distribution of algal mats in glacial meltwater streams of the region. This table contains data showing the ash-free dry mass represented by algal type (brown-colored, red-colored, orange-colored, or green-colored algae, filamentous, sand, rock or moss) and incubation type (light, dark, or none) for multiple streams, dates, and replications. 1994-01-01 1994-12-31 ground condition Data from this table was initially included in the raw data files specified under the variable for 'file name'. These are Microsoft Excel version 5.0 files and can be found on the McMurdo LTER data manager's personal computer at INSTAAR. Once submitted to INSTAAR, the data manager combined all of the stream biology files that included information for "ash-free dry mass", and removed any variables that had no direct influence on it. The resulting files are represented in the "strmafdm.dat" and "strmafdm.txt" files used on the web page. In July, 2000, dataset code and location code (strmtrnsid) fields were added. This would simplify generating links between different data and metadata fields and assist in making the data more relational / useful in Oracle and ArcInfo. As needed Transect by Andersen Creek near Gage Moss Site M-01, H01Simm-G, H1 Transect 1 Points T011 and T012 mark the start and end of the transect. Start : IDs: 1ANDRSNT011 Ellipsoid: 23.73 ORTHOMETRIC HT (m) 78.97 End: ID: 1ANDRSNT012 Ellipsoid: 22.64 ORTHOMETRIC HT (m) 77.88 File provenance: strm-clg.txt 162.907409667969 162.906311035156 -77.622917175293 -77.622985839844 78m 78m meter Transect by House Creek near Gage Moss Site M-02, H2 Transect 2 Points T021 and T022 mark the start and end of the transect. Start : IDs: 2HOUSET021 Ellipsoid: 30.21 ORTHOMETRIC HT (m) 85.42 End: ID: 2HOUSET022 Ellipsoid: 30.68 ORTHOMETRIC HT (m) 85.89 File provenance: strm-clg.txt 162.739685058594 162.739425659180 -77.643013000488 -77.643096923828 86m 86m meter Transect by Canada Stream near Gage Moss Site M-03, F04Cana-G Transect 3 Points T031 and T032 mark the start and end of the transect. Start : IDs: 3CNGAGET031 Ellipsoid: 0.22 ORTHOMETRIC HT (m) 55.46 End: ID: 3CNGAGET032 Ellipsoid: -2.37 ORTHOMETRIC HT (m) 52.85 File provenance: strm-clg.txt 163.052688598633 163.050796508789 -77.613243103027 -77.613395690918 54m 54m meter Transect by Canada Stream at Delta Moss Site M-04, F04Cana-D Transect 4 Points T041 and T042 mark the start and end of the transect. Start : IDs: 4CNDELTAT041 Ellipsoid: -30.52 ORTHOMETRIC HT (m) 24.72 End: ID: 4CNDELTAT042 Ellipsoid: -31.83 ORTHOMETRIC HT (m) 23.39 File provenance: strm-clg.txt 163.070114135742 163.069854736328 -77.614593505859 -77.614814758301 24m 24m meter Transect by Von Guerard Stream at Upper Site Moss Site M-05 Transect 5 Points T051 and T052 mark the start and end of the transect. Start : IDs: 5VGUPPERT051 Ellipsoid: 114.08 ORTHOMETRIC HT (m) 169.27 End: ID: 5VGUPPERT052 Ellipsoid: 120.24 ORTHOMETRIC HT (m) 175.41 File provenance: strm-clg.txt 163.307327270508 163.305282592773 -77.634208679199 -77.634559631348 172m 172m meter Transect by Von Guerard Stream at Lower Site Moss Site M-06 Transect 6 Points T061 and T062 mark the start and end of the transect. Start : IDs: 6VGLOWERT061 Ellipsoid: 33.99 ORTHOMETRIC HT (m) 89.19 End: ID: 6VGLOWERT062 Ellipsoid: 33.74 ORTHOMETRIC HT (m) 88.92 File provenance: strm-clg.txt 163.288482666016 163.287460327148 -77.619300842285 -77.619659423828 89m 89m meter Transect by Delta Stream at Upper Site Moss Site M-07, F08Delt-U Transect 7 Points T071 and T072 mark the start and end of the transect. Start : IDs: 7DLTUPPERT071 Ellipsoid: 201.5 ORTHOMETRIC HT (m) 256.72 End: ID: 7DLTPPERT072 Ellipsoid: 201.53 ORTHOMETRIC HT (m) 256.73 File provenance: strm-clg.txt 163.099685668945 163.097671508789 -77.652854919434 -77.653213500977 256m 256m meter Transect by Delta Stream at gage Moss Site M-08, F08Delt-G Transect 8 Points T081 and T082 mark the start and end of the transect. Start : IDs: 8DLTGAGET081, Ellipsoid: -23.45 ORTHOMETRIC HT (m) 31.78 End: ID: 8DLTGAGET082 Ellipsoid: -19.93 ORTHOMETRIC HT (m) 35.28 File provenance: strm-clg.txt 163.110809326172 163.108413696289 -77.625495910645 -77.625877380371 33m 33m meter Transect by green Creek above gage Moss Site M-09, F09Green-G Transect 9 Points T091 and T092 mark the start and end of the transect. Start : IDs: 9GREENT091, Ellipsoid: -22.66 ORTHOMETRIC HT (m) 32.58 End: ID: 9GREENT092 Ellipsoid: -26.5 ORTHOMETRIC HT (m) 28.72 File provenance: strm-clg.txt 163.059310913086 163.058395385742 -77.623992919922 -77.624420166016 30m 30m meter Transect by Bowles Creek near gage Moss Site M-10, F10Bowl-G Transect 10 Points T101 and T102 mark the start and end of the transect. Start : IDs: 10BOWLEST101, Ellipsoid: -25.54 ORTHOMETRIC HT (m) 29.7 End: ID: 10BOWLEST102 Ellipsoid: -24.01 ORTHOMETRIC HT (m) 31.24 File provenance: strm-clg.txt 163.057601928711 163.057083129883 -77.623100280762 -77.623336791992 30m 30m meter Transect by Huey Creek near gage Moss Site M-11, F11Huey-G Transect 11 Points T111 and T112 mark the start and end of the transect. Start : IDs: 10BOWLEST111, Ellipsoid: -14.09 ORTHOMETRIC HT (m) 41.15 End: ID: 10BOWLEST112 Ellipsoid: -12.91 ORTHOMETRIC HT (m) 42.31 File provenance: strm-clg.txt 163.122741699219 163.121688842773 -77.601676940918 -77.602165222168 42m 42m meter Transect by Von Guerard Stream at gage Moss Site M-12, F12Vong-G Transect 12 Points T121 and T122 mark the start and end of the transect. Start : IDs: 12VGGAGET121, Ellipsoid: -30.67 ORTHOMETRIC HT (m) 24.53 End: ID: 12VGGAGET122 Ellipsoid: -31.35 ORTHOMETRIC HT (m) 23.87 File provenance: strm-clg.txt 163.255294799805 163.253005981445 -77.609222412109 -77.609474182129 24m 24m meter Moss Site 13 Transect 13 Points T131 and T132 mark the start and end of the transect. Start : IDs: 13PRISCUT131, Ellipsoid: 16.79 ORTHOMETRIC HT (m) 71.96 End: ID: 13PRISCUT132 Ellipsoid: 21.49 ORTHOMETRIC HT (m) 76.64 File provenance: strm-clg.txt 162.539794921875 162.537292480469 -77.696228027344 -77.696861267090 76m 76m meter Transect by Lawson creek near gage Moss Site M-14, B14Laws-G Transect 14 Points T141 and T142 mark the start and end of the transect. Start : IDs: 14LAWSONT141, Ellipsoid: 24.08 ORTHOMETRIC HT (m) 79.13 End: ID: 14LAWSONT144 Ellipsoid: 30.05 ORTHOMETRIC HT (m) 85.08 File provenance: strm-clg.txt 162.268783569336 162.266586303711 -77.720359802246 -77.720619201660 83m 83m meter Transect by Boehner Stream at lower site. B15Bohn-L Transect 15 Points T151 and T152 mark the start and end of the transect. Start : IDs: 15BOHNERT151 Ellipsoid: 74.57 ORTHOMETRIC HT (m) 129.74 End: ID: 15BOHNERT152 Ellipsoid: 70.17 ORTHOMETRIC HT (m) 125.32 File provenance: strm-clg.txt 162.563919067383 162.559936523438 -77.696968078613 -77.697700500488 185m 185m meter Transect by Wharton Creek at Delta Moss Site M-16 Transect 16 Points T161 and T162 mark the start and end of the transect. Start : IDs: 16WHARTONT161 Ellipsoid: 24.1 ORTHOMETRIC HT (m) 79.31 End: ID: 16WHARTONT162 Ellipsoid: 23.61 ORTHOMETRIC HT (m) 78.82 File provenance: strm-clg.txt 162.746231079102 162.745101928711 -77.644943237305 -77.645057678223 79m 79m 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. Not all types of algal mats were found within every transect. A maximum of five algal samples of each color were collected from each transect using a #13 cork borer (diameter = 17 mm, area = 227 square mm). Algal samples were preserved in 10% formalin for laboratory identifications. In all, 141 algal samples were collected from 12 streams. maximum of five additional algal samples of each color were collected for ash-free dry mass analyses. Moss samples were also collected using the same method as for algae samples. Samples for ash-free dry mass measurements were filtered through GF/C glass fiber filters and frozen. The samples were dried (100 degrees C) for 24 hours, weighed, ashed (450 degrees C) for 4 hours, rehydrated with water, dried for 24 hours, and reweighed. Within each transect, algal mats were visually identified as either orange, red, black, or green. Not all types of algal mats were found within every transect. A maximum of five algal samples of each color were collected from each transect using a #13 cork borer (diameter = 17 mm, area = 227 square mm). Algal samples were preserved in 10% formalin for laboratory identifications. In all, 141 algal samples were collected from 12 streams. maximum of five additional algal samples of each color were collected for ash-free dry mass analyses. Moss samples were also collected using the same method as for algae samples. Samples for ash-free dry mass measurements were filtered through GF/C glass fiber filters and frozen. The samples were dried (100 degrees C) for 24 hours, weighed, ashed (450 degrees C) for 4 hours, rehydrated with water, dried for 24 hours, and reweighed. unknown strmafdm Dataset code Code representing stream algae ash-free dry mass dataset The data provider Code representing stream algae ash-free dry mass dataset Strmtrnsid Code representing stream transect The data provider Code representing stream transect Stream name Area of stream / name of transect where samples are drawn The data provider Area of stream / name of transect where samples are drawn Date Date of sample The data provider calendar date/time mm/dd/yyyy gregorian calendar Algae Type Type of algae species is associated with (red, brown, green or orange) The data provider Type of algae species is associated with (red, brown, green or orange) Replication # Replication number of sample The data provider Replication number of sample Incubation Type Environment where incubation occurred (light, dark or not applicable) The data provider Environment where incubation occurred (light, dark or not applicable) Incubation Time (h) Number of hours spent incubating The data provider hour 0.01 Area sampled (cm2) Area from which sample was drawn The data provider 0.5 45 squareCentimeters 0.01 AFDM (mg/cm2) Ash-free dry mass The data provider 0.01 mg/cm2 0.01 AFDM Comments Comments regarding ash-free dry mass The data provider Comments regarding ash-free dry mass 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/strmafdm.csv None 2015-01-20 2015-01-20 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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