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


Water Body: Potomac River          Site Location ID: NRSA-FW08MD009  Sample Label:
Sample ID: NRSA0067                Client Sample ID: 526054.1
Date Sample Collected: 07/15/2008  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   
    2176 Achnanthes minutissima var. jackii (Rabenhorst) Lange-Bertalot et R+     0.83      5.0
    1038 Achnanthidium deflexum (Reimer in Patrick and Reimer) Kingston           1.00      6.0
    1010 Achnanthidium minutissimum (Kützing) Czarnecki                          11.16     67.0 Yes
    1036 Achnanthidium rivulare Potapova et Ponader                               2.33     14.0
  204002 Adlafia minuscula (Grunow in Van Heurck) Lange-Bertalot in Lange-Be+     5.16     31.0 Yes
    7075 Amphora copulata (Kützing) Schoeman et Archibald                         0.16      1.0
    7010 Amphora inariensis Krammer                                               0.16      1.0
    7042 Amphora montana Krasske                                                  0.16      1.0
    7001 Amphora ovalis (Kützing) Kützing                                         0.16      1.0
    7043 Amphora pediculus (Kützing) Grunow in A. Schmidt                         0.83      5.0
   12001 Caloneis bacillum (Grunow) Cleve                                         0.33      2.0
   12009 Caloneis hyalina Hustedt                                                 0.33      2.0
   16011 Cocconeis pediculus Ehrenberg                                            0.50      3.0
   16005 Cocconeis placentula var. euglypta (Ehrenberg) Grunow                   19.50    117.0
   16003 Cocconeis placentula var. lineata (Ehrenberg) Van Heurck                 0.66      4.0
   23074 Cymbella hustedtii Krasske                                               2.16     13.0
   27013 Diatoma vulgaris Bory                                                    0.16      1.0
  110013 Encyonema prostratum (Berkeley) Ralfs                                    0.66      4.0
  110005 Encyonema silesiacum (Bleisch in Rabenhorst) Mann in Round, Crawfor+     0.50      3.0
  203008 Encyonopsis subminuta Krammer et Reichardt in Krammer                    0.33      2.0
   34038 Fragilaria pinnata var. acuminata Mayer                                  0.33      2.0
   34030 Fragilaria vaucheriae (Kützing) Petersen                                 0.16      1.0
   37197 Gomphonema kobayasii Kociolek et Kingston                                1.33      8.0
   37193 Gomphonema patricki Kociolek et Stoermer in Kociolek, Stoermer and +     0.66      4.0
   37194 Gomphonema pumilum var. rigidum Reichardt et Lange-Bertalot in Reic+     0.83      5.0
   37080 Gomphonema rhombicum Fricke in Schmidt et al.                            8.66     52.0
   38001 Gyrosigma acuminatum (Kützing) Rabenhorst                                0.50      3.0
   38027 Gyrosigma reimeri Sterrenburg                                            0.33      2.0
   38004 Gyrosigma spencerii (Smith) Griffith et Henfrey                          1.16      7.0
   44073 Melosira varians Agardh                                                  0.16      1.0
   46789 Navicula aff. subminuscula ANS NAWQA EAM Manguin                        10.33     62.0
   46893 Navicula antonii Lange-Bertalot in U. Rumrich, Lange-Bertalot and M+     0.33      2.0
   46661 Navicula capitatoradiata Germain                                         0.66      4.0
   46527 Navicula cryptotenella Lange-Bertalot in Krammer and Lange-Bertalot      4.50     27.0
   46373 Navicula menisculus Schumann                                             0.16      1.0
   46039 Navicula minima Grunow in Van Heurck                                     0.83      5.0
   93172 Navicula radiosafallax Lange-Bertalot                                    0.50      3.0
   46649 Navicula recens (Lange-Bertalot) Lange-Bertalot in Krammer and Lang+     0.50      3.0
   46896 Navicula rostellata Kützing                                              1.33      8.0
   46394 Navicula schroeteri var. escambia Patrick                                2.66     16.0
   46400 Navicula symmetrica Patrick                                              0.50      3.0
   46104 Navicula tripunctata (Müller) Bory                                       6.00     36.0 Yes
   46467 Navicula vaucheriae Petersen                                             0.83      5.0
   48004 Nitzschia amphibia Grunow                                                4.16     25.0
   48122 Nitzschia inconspicua Grunow                                             0.33      2.0
   48178 Nitzschia sinuata var. tabellaria (Grunow) Grunow in Van Heurck          0.16      1.0
  194005 Placoneis elginensis (Gregory) Cox                                       0.33      2.0
  155017 Planothidium frequentissimum (Lange-Bertalot in Krammer and Lange-B+     1.00      6.0
 2508001 Platessa conspicua (Mayer) Lange-Bertalot in Krammer and Lange-Bert+     0.16      1.0
   55002 Reimeria sinuata (Gregory) Kociolek et Stoermer                          0.16      1.0
   57002 Rhoicosphenia abbreviata (Agardh) Lange-Bertalot                         1.66     10.0
  170014 Sellaphora seminulum (Grunow) Mann                                       1.33      8.0
   66058 Synedra ulna var. contracta Østrup                                       0.16      1.0


Report Date: 6/8/2023          Total Number of Taxa: 53          Total Number Counted: 600

Count Notes:

  ?
  Comments: Row 1 x 109, y 3, y 13
 
Taxa Notes:
 
Naded 1010: A small rhombic form is included here together with the typical more elliptical form
Naded 46104: No good valves were found to take an image.
Naded 204002: This population looks somewhat different with more protruded, subrostrate ends, but not as wide and with clear striation as A. muscora.


 


 
Counts version 3.3 - last revision 2/16/2021
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