North American Diatom Ecological Database - NADED
Phycology Section, Patrick Center for Environmental Research
Diatom Count Report
 


Water Body: Rock Creek             Site Location ID: NRSA-FW08MD010  Sample Label:
Sample ID: NRSA0061                Client Sample ID: 522874.1
Date Sample Collected: 08/04/2008  Count Finished:
Subsample ID: DT1                  Slide Replicate ID: a     Count Replicate ID: 1
Counted By: Eduardo Morales        Sample Type:



   Naded Taxon Name                                                            Percent    Count Notes   
    2132 Achnanthes subhudsonis var. kraeuselii (Cholnoky) Cholnoky               0.33      2.0
    1038 Achnanthidium deflexum (Reimer in Patrick and Reimer) Kingston           0.16      1.0
    1010 Achnanthidium minutissimum (Kützing) Czarnecki                           0.83      5.0
    1036 Achnanthidium rivulare Potapova et Ponader                               0.33      2.0
    7075 Amphora copulata (Kützing) Schoeman et Archibald                         0.50      3.0
    7006 Amphora veneta Kützing                                                   0.33      2.0
   10018 Aulacoseira granulata (Ehrenberg) Simonsen                               0.33      2.0
   76001 Bacillaria paradoxa Gmelin in Linneaeus                                  1.33      8.0
   12001 Caloneis bacillum (Grunow) Cleve                                         0.33      2.0
   12010 Caloneis silicula (Ehrenberg) Cleve                                      0.33      2.0
   16011 Cocconeis pediculus Ehrenberg                                            0.33      2.0
   16005 Cocconeis placentula var. euglypta (Ehrenberg) Grunow                    0.16      1.0
   16003 Cocconeis placentula var. lineata (Ehrenberg) Van Heurck                 0.50      3.0
   20007 Cyclotella meneghiniana Kützing                                          0.16      1.0
   23073 Cymbella affinis Kützing                                                 0.33      2.0
   23005 Cymbella cistula (Ehrenberg in Hemprich and Ehrenberg) Kirchner          0.16      1.0
   23127 Cymbella mesiana Cholnoky                                                0.33      2.0
   23016 Cymbella naviculiformis Auerswald ex Heiberg                             0.16      1.0
   30003 Diploneis marginestriata Hustedt                                         0.16      1.0
   30009 Diploneis ovalis (Hilse in Rabenhorst) Cleve                             0.16      1.0
   33185 Eunotia bilunaris (Ehrenberg) Souza in Souza and Moreira-Filho           1.00      6.0
   33168 Eunotia implicata Nörpel, Alles et Lange-Bertalot in Alles, Nörpel +     4.50     27.0
   33183 Eunotia minor (Kützing) Grunow in Van Heurck                             0.33      2.0
   33041 Eunotia pectinalis var. undulata (Ralfs) Rabenhorst                      2.66     16.0
   33051 Eunotia rhomboidea Hustedt                                               0.16      1.0
   34192 Fragilaria cf. crotonensis NAWQA EAM Kitton                              0.16      1.0
   35011 Frustulia vulgaris (Thwaites) De Toni                                    0.66      4.0
   35014 Frustulia weinholdii Hustedt in A. Schmidt                               0.66      4.0
  210003 Geissleria decussis (Østrup) Lange-Bertalot et Metzeltin                 0.50      3.0
   37001 Gomphonema acuminatum Ehrenberg                                          0.16      1.0
   37003 Gomphonema angustatum (Kützing) Rabenhorst                               2.83     17.0
   37156 Gomphonema insigne Gregory                                               0.16      1.0
   37197 Gomphonema kobayasii Kociolek et Kingston                               15.66     94.0
   37278 Gomphonema lagenula Kützing                                              1.16      7.0
   37178 Gomphonema minutum (Agardh) Agardh                                       0.16      1.0
   37065 Gomphonema olivaceum (Lyngbye) Kützing                                   0.50      3.0
   37193 Gomphonema patricki Kociolek et Stoermer in Kociolek, Stoermer and +     0.33      2.0
   37152 Gomphonema sarcophagus Gregory                                           0.33      2.0
   38012 Gyrosigma scalproides (Rabenhorst) Cleve                                 0.33      2.0
   38004 Gyrosigma spencerii (Smith) Griffith et Henfrey                          2.33     14.0
  213001 Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin et Witkow+     0.83      5.0
  213002 Hippodonta hungarica (Grunow) Lange-Bertalot, Metzeltin et Witkowski     0.50      3.0
   45002 Meridion circulare var. constrictum (Ralfs) Van Heurck                   0.16      1.0
   46893 Navicula antonii Lange-Bertalot in U. Rumrich, Lange-Bertalot and M+     0.16      1.0
   93165 Navicula cf. kriegerii NAWQA KM Krasske                                  0.50      3.0
   46735 Navicula constans var. symmetrica Hustedt                                0.50      3.0
   46014 Navicula cryptocephala Kützing                                           0.83      5.0
   46648 Navicula erifuga Lange-Bertalot in Krammer and Lange-Bertalot            0.50      3.0
   46616 Navicula germainii Wallace                                               2.16     13.0
   93175 Navicula goersii Bahls                                                   0.16      1.0
   46023 Navicula gregaria Donkin                                                 0.83      5.0
   46859 Navicula lanceolata (Agardh) Kützing                                     4.50     27.0
   46542 Navicula libonensis Schoeman                                             3.00     18.0
   46039 Navicula minima Grunow in Van Heurck                                     0.33      2.0
   46044 Navicula notha Wallace                                                   4.16     25.0
   46538 Navicula perminuta Grunow in Van Heurck                                  0.50      3.0
   46896 Navicula rostellata Kützing                                              7.33     44.0
   46394 Navicula schroeteri var. escambia Patrick                                1.83     11.0
   46400 Navicula symmetrica Patrick                                              2.33     14.0
   46401 Navicula tenelloides Hustedt                                             0.83      5.0
   46774 Navicula trivialis Lange-Bertalot                                        0.83      5.0
   46504 Navicula veneta Kützing                                                  0.16      1.0
   48099 Nitzschia dissipata var. media (Hantzsch) Grunow in Van Heurck           0.33      2.0
   48011 Nitzschia fonticola (Grunow) Grunow in Van Heurck                        0.16      1.0
   48013 Nitzschia frustulum (Kützing) Grunow in Cleve and Grunow                 0.33      2.0
   48023 Nitzschia linearis (Agardh) Smith                                        2.16     13.0
   48394 Nitzschia lorenziana Grunow in Cleve and Grunow                          1.00      6.0
   48307 Nitzschia nana Grunow ex Van Heurck                                      0.33      2.0
   48087 Nitzschia sigma (Kützing) Smith                                          0.50      3.0
   48177 Nitzschia sigmoidea (Nitzsch) Smith                                      0.16      1.0
   48225 Nitzschia sociabilis Hustedt                                             0.33      2.0
   48349 Nitzschia tubicola Grunow in Cleve and Grunow                            0.16      1.0
  214002 Parlibellus protracta (Grunow) Witkowski, Lange-Bertalot et Metzelt+     0.16      1.0
   52025 Pinnularia divergens Smith                                               0.33      2.0
   52071 Pinnularia viridis (Nitzsch) Ehrenberg                                   0.16      1.0
  194001 Placoneis abiskoensis (Hustedt) Lange-Bertalot et Metzeltin in Metz+     0.16      1.0
  194005 Placoneis elginensis (Gregory) Cox                                       1.83     11.0
  155017 Planothidium frequentissimum (Lange-Bertalot in Krammer and Lange-B+     2.83     17.0
  155003 Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot           3.16     19.0
   73001 Pseudostaurosira brevistriata (Grunow in Van Heurck) Williams et Ro+     0.16      1.0
   57002 Rhoicosphenia abbreviata (Agardh) Lange-Bertalot                         0.16      1.0
  170001 Sellaphora laevissima (Kützing) Mann                                     0.16      1.0
  170006 Sellaphora pupula (Kützing) Meresckowsky                                 0.50      3.0
  170014 Sellaphora seminulum (Grunow) Mann                                       0.16      1.0
   62008 Stauroneis kriegeri Patrick                                              0.33      2.0
   62007 Stauroneis smithii Grunow                                                6.33     38.0
   62040 Stauroneis thermicola (Petersen) Lund                                    0.33      2.0
   65005 Surirella biseriata Brébisson in Brébisson and Godey                     0.16      1.0
   65100 Surirella roba Leclercq                                                  0.66      4.0
   66042 Synedra acus Kützing                                                     0.33      2.0
   66016 Synedra rumpens Kützing                                                  0.16      1.0
   66814 Synedra sp. 8 NAWQA MORALES                                              0.16      1.0
   66058 Synedra ulna var. contracta Østrup                                       0.16      1.0
   66822 Synedra ungeriana (Grunow) Williams                                      0.16      1.0
  185027 Tryblionella victoriae Grunow                                            0.83      5.0


Report Date: 6/27/2019          Total Number of Taxa: 95          Total Number Counted: 600

Count Notes:

  ?
  Comments: Row 1 x 107, y 3, y 17. Only 89 valves counted in 1 hour of analysis. A full count would not be reached by 4 hours limit. Many broken pieces valves and frustules present in sample. Lots of large sediment particles, which could be the cause of broken cell walls and scarcity of diatoms. Continued count Row 2 x 106, y 17, y 2; Row 3 x 105, y 2, y 17; Row 4 x 104, y 17, y 2, Row 5 x 103, y 2, y 17; Row 6 x 17, y 17, y 2. I invested an extra half an hour on this slide because at 4 hours I was very close to 600 valves)
 
Taxa Notes:
 
None.

 


 
Counts version 3.2 - last revision 6/17/2017
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