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


Water Body: Marshyhope Creek       Site Location ID: NRSA-FW08MD006  Sample Label:
Sample ID: NRSA0074                Client Sample ID: 526144.1
Date Sample Collected: 07/30/2008  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   
    1024 Achnanthidium exiguum (Grunow in Cleve and Grunow) Czarnecki             2.00     12.0
    1010 Achnanthidium minutissimum (Kützing) Czarnecki                           3.16     19.0
    1036 Achnanthidium rivulare Potapova et Ponader                               0.16      1.0
    7043 Amphora pediculus (Kützing) Grunow in A. Schmidt                         0.16      1.0
   10018 Aulacoseira granulata (Ehrenberg) Simonsen                               0.83      5.0
   76001 Bacillaria paradoxa Gmelin in Linneaeus                                  1.00      6.0
   14001 Capartogramma crucicula (Grunow ex Cleve) Ross                           0.50      3.0
   16005 Cocconeis placentula var. euglypta (Ehrenberg) Grunow                    0.33      2.0
  201001 Ctenophora pulchella (Ralfs ex Kützing) Williams et Round                0.16      1.0
   20001 Cyclotella atomus Hustedt                                                0.50      3.0
   20067 Cyclotella hakanssoniae Wendker                                         12.33     74.0 Yes
   20007 Cyclotella meneghiniana Kützing                                          0.33      2.0
   23016 Cymbella naviculiformis Auerswald ex Heiberg                             0.16      1.0
  197001 Diadesmis confervacea Kützing                                            2.50     15.0
  197002 Diadesmis contenta (Grunow ex Van Heurck) Mann in Round, Crawford a+     0.50      3.0
  110004 Encyonema minutum (Hilse in Rabenhorst) Mann in Round, Crawford and+     0.50      3.0
  110005 Encyonema silesiacum (Bleisch in Rabenhorst) Mann in Round, Crawfor+     1.00      6.0
   31003 Entomoneis alata (Ehrenberg) Ehrenberg                                   0.50      3.0
   33185 Eunotia bilunaris (Ehrenberg) Souza in Souza and Moreira-Filho           0.33      2.0
   33018 Eunotia fallax Cleve-Euler                                               0.16      1.0
   33026 Eunotia incisa Smith ex Gregory                                          3.66     22.0 Yes
   33041 Eunotia pectinalis var. undulata (Ralfs) Rabenhorst                      0.66      4.0
   34006 Fragilaria capucina Desmazières                                          0.16      1.0
   34098 Fragilaria capucina var. gracilis (Østrup) Hustedt                       0.33      2.0
   34024 Fragilaria nitzschioides Grunow in Van Heurck                           11.50     69.0
   34038 Fragilaria pinnata var. acuminata Mayer                                  3.16     19.0 Yes
   34211 Fragilaria rhabdosoma Ehrenberg                                          0.16      1.0
   34030 Fragilaria vaucheriae (Kützing) Petersen                                 0.33      2.0
   34141 Fragilaria zeilleri var. elliptica Gasse                                 3.00     18.0
  192008 Fragilariforma virescens (Ralfs) Williams et Round                       0.33      2.0
  210003 Geissleria decussis (Østrup) Lange-Bertalot et Metzeltin                 0.33      2.0
   37003 Gomphonema angustatum (Kützing) Rabenhorst                               1.16      7.0
   37156 Gomphonema insigne Gregory                                               0.16      1.0
   37197 Gomphonema kobayasii Kociolek et Kingston                                0.16      1.0
   37278 Gomphonema lagenula Kützing                                              0.50      3.0
   37029 Gomphonema subclavatum (Grunow in Van Heurck) Grunow                     1.50      9.0
   38027 Gyrosigma reimeri Sterrenburg                                            0.33      2.0
  213001 Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin et Witkow+     0.16      1.0
  125001 Karayevia clevei (Grunow in Cleve and Grunow) Bukhtiyarova               0.16      1.0
  130006 Luticola goeppertiana (Bleisch in Rabenhorst) Mann in Round, Crawfo+     8.16     49.0
  130003 Luticola ventricosa (Kützing) Mann in Round, Crawford and Mann           0.50      3.0
   44073 Melosira varians Agardh                                                  0.33      2.0
   46494 Navicula absoluta Hustedt                                                0.16      1.0
   93165 Navicula cf. kriegerii NAWQA KM Krasske                                  0.33      2.0
   46616 Navicula germainii Wallace                                               0.50      3.0
   46023 Navicula gregaria Donkin                                                 0.16      1.0
   46039 Navicula minima Grunow in Van Heurck                                     0.66      4.0
   46289 Navicula peregrina (Ehrenberg) Kützing                                   0.50      3.0
   46896 Navicula rostellata Kützing                                              0.83      5.0
   47006 Neidium alpinum Hustedt                                                  0.33      2.0
   47079 Neidium densestriatum (Østrup) Krammer in Krammer and Lange-Bertalot     0.50      3.0
   48004 Nitzschia amphibia Grunow                                                6.33     38.0
   48011 Nitzschia fonticola (Grunow) Grunow in Van Heurck                        0.33      2.0
   48153 Nitzschia intermedia Hantzsch ex Cleve et Grunow                         0.16      1.0
   48156 Nitzschia liebethruthii Rabenhorst                                       0.16      1.0
   50012 Opephora aff. olsenii SAVANNAH EAM Møller                                0.66      4.0
   50002 Opephora martyi Héribaud                                                 0.50      3.0 Yes
  155009 Planothidium delicatulum (Kützing) Round et Bukhtiyarova                 0.33      2.0
  155017 Planothidium frequentissimum (Lange-Bertalot in Krammer and Lange-B+     0.66      4.0
  155018 Planothidium rostratum (Østrup) Lange-Bertalot                           0.33      2.0
  186002 Psammothidium grischunum fo. daonensis (Lange-Bertalot in Lange-Ber+     0.33      2.0
  186008 Psammothidium subatomoides (Hustedt in Schmidt) Bukhtiyarova et Rou+     0.16      1.0
   73007 Pseudostaurosira neoelliptica (Witkowski) Morales                        5.83     35.0 Yes
   73010 Pseudostaurosira parasitica (Smith) Morales                              0.50      3.0
   73012 Pseudostaurosira subsalina (Hustedt) Morales                             4.16     25.0 Yes
 2509005 Pseudostaurosiropsis connecticutensis Morales                            1.16      7.0 Yes
   57002 Rhoicosphenia abbreviata (Agardh) Lange-Bertalot                         0.16      1.0
  170001 Sellaphora laevissima (Kützing) Mann                                     0.16      1.0
  170014 Sellaphora seminulum (Grunow) Mann                                       0.16      1.0
  193001 Stauroforma exiguiformis (Lange-Bertalot) Flower, Jones et Round         0.16      1.0
  172009 Staurosira aff. construens NAWQA EAM Ehrenberg                           4.00     24.0 Yes
  172006 Staurosira construens var. venter (Ehrenberg) Hamilton in Hamilton,+     4.66     28.0 Yes
  175005 Staurosirella pinnata (Ehrenberg) Williams et Round                      0.16      1.0
   66016 Synedra rumpens Kützing                                                  0.33      2.0
   66058 Synedra ulna var. contracta Østrup                                       0.16      1.0
   67002 Tabellaria fenestrata (Lyngbye) Kützing                                  0.16      1.0
  185027 Tryblionella victoriae Grunow                                            0.16      1.0


Report Date: 6/26/2022          Total Number of Taxa: 77          Total Number Counted: 600

Count Notes:

  ?
  Comments: Row 1 x 109, y 3, y 6
 
Taxa Notes:
 
Naded 20067: Very doffuclt to make out. I observed this taxon in seveal samples from Maryland now and it seems to vary from site to site. There are ones with wavy domes and one to several fultoportulae , but also flat domed ones and with one, but with same striation
Naded 33026: Variable in the sample
Naded 34038: Not sure if this is the taxon. It seems to be the same as that observed in other samples from Maryland, but this ones have a more clavate shape. Probably a Punctastriata
Naded 50002: Smaller form
Naded 73007: There is a variation of forms with a few larger, more typical ones and lots of smaller apically compressed forms
Naded 73012: Intergradation with zeilleri var. elliptica, but the later has higher striae density
Naded 172006: Mixture of forms. The circular-elliptical form seems to be a different taxon
Naded 172009: larger forms were observed here with lanceolate shape and protruded ends
Naded 2509005: Typical elliptical form


 


 
Counts version 3.3 - last revision 2/16/2021
If problems with this page, please email