North American Diatom Ecological Database - NADED Phycology Section, Patrick Center for Environmental Research Diatom Count Report
Water Body: Rock Creek Site Location ID: NRSA-FW08NV035 Sample Label: Sample ID: NRSA0248 Client Sample ID: 521994.1 Date Sample Collected: 06/17/2008 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 12012 Caloneis schumanniana var. biconstricta (Grunow) Reichelt 1.29 2.0 12010 Caloneis silicula (Ehrenberg) Cleve 0.64 1.0 16011 Cocconeis pediculus Ehrenberg 0.64 1.0 16005 Cocconeis placentula var. euglypta (Ehrenberg) Grunow 1.29 2.0 16003 Cocconeis placentula var. lineata (Ehrenberg) Van Heurck 4.51 7.0 20034 Cyclotella bodanica var. lemanica (Müller) Bachmann 0.64 1.0 20007 Cyclotella meneghiniana Kützing 0.64 1.0 22002 Cymatopleura elliptica (Brébisson ex Kützing) Smith 1.29 2.0 32003 Epithemia adnata (Kützing) Brébisson 30.96 48.0 32006 Epithemia sorex Kützing 10.32 16.0 32004 Epithemia turgida (Ehrenberg) Kützing 1.29 2.0 32008 Epithemia turgida var. granulata (Ehrenberg) Brun 11.61 18.0 36010 Gomphoneis minuta (Stone in McLaughlin and Stone) Kociolek et Stoer+ 1.29 2.0 37029 Gomphonema subclavatum (Grunow in Van Heurck) Grunow 1.29 2.0 40002 Hantzschia amphioxys (Ehrenberg) Grunow in Cleve and Grunow 2.58 4.0 130002 Luticola mutica (Kützing) Mann in Round, Crawford and Mann 4.51 7.0 130014 Luticola nivalis (Ehrenberg) Mann in Round, Crawford and Mann 1.29 2.0 46648 Navicula erifuga Lange-Bertalot in Krammer and Lange-Bertalot 0.64 1.0 46666 Navicula reichardtiana Lange-Bertalot in Lange-Bertalot and Krammer 0.64 1.0 48004 Nitzschia amphibia Grunow 0.64 1.0 48087 Nitzschia sigma (Kützing) Smith 0.64 1.0 48034 Nitzschia subtilis (Kützing) Grunow in Cleve and Grunow 0.64 1.0 73001 Pseudostaurosira brevistriata (Grunow in Van Heurck) Williams et Ro+ 0.64 1.0 73002 Pseudostaurosira pseudoconstruens (Marciniak) Williams et Round 2.58 4.0 73013 Pseudostaurosira trainorii Morales 0.64 1.0 57002 Rhoicosphenia abbreviata (Agardh) Lange-Bertalot 0.64 1.0 58007 Rhopalodia brebissonii Krammer in Lange-Bertalot and Krammer 5.80 9.0 58001 Rhopalodia gibba (Ehrenberg) Müller 6.45 10.0 172005 Staurosira construens var. binodis (Ehrenberg) Hamilton in Hamilton+ 0.64 1.0 66042 Synedra acus Kützing 0.64 1.0 66814 Synedra sp. 8 NAWQA MORALES 0.64 1.0 200001 Tabularia tabulata (Agardh) Snoeijs 0.64 1.0 185023 Tryblionella apiculata Gregory 0.64 1.0 185024 Tryblionella hungarica (Grunow) Frenguelli 0.64 1.0
Report Date: 6/2/2023 Total Number of Taxa: 34 Total Number Counted: 155
Count Notes:
? Comments: Row 1 x 104, y 3, y 17. Only 70 valves counted in 45 min of analysis. A full count could not be reached by time limit. Many valves are broken or partially dissolved and mixed with large particles.
Continued count: Row 2 x 103, y 17, y 2, Row 3 x 102, y 2, y 17, Row 4 x 100, y 17, y 2, Row 5 x 99, y 2, y 17, Row 6 x 98, y 17, y 2. Sparse sample, lots of crushed diatoms.
Taxa Notes:
None.
Counts version 3.3 - last revision 2/16/2021 If problems with this page, please email