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Algae count event

Phycology Section: ecology and taxonomy of freshwater algae, particularly diatoms

 


Diatom Count Report
 
C O U N T E V E N T

NEON00670 DT1 A, official count
 
count method: 600 Valves (300 Cells)
slide: NEON00670 DT1 A
    from subsample: NEON00670 DT1
        from sample: NEON00670
 
View results for COUNT EVENT MEASURED ATTRIBUTE(S): 1

   valves (cema_id: 202896 ma_id: 2)

count_event_id: 66800
taxonomy: ANSP-2011
person: Marco Cantonati ... person_id=796
 
started_on: 4/8/2017 12:00:00 AM
estimated_hours: 4.000000000
microscope_optivar_lens_id: 87
source_table: dtm
institution_address_id: 1
 
added on: 4/24/2017 5:33:00 PM, added by: pboylan
modified on: 4/24/2017 5:33:00 PM, modified by: pboylan
 
1 QUALIFIER:

  Qualifier Code: TaxaNote
  Description: Notes taken about the taxa for a count; older data typically includes information such as beginning and end scan coordinates, unusual taxa, etc.
  Comments: Sparse sample. Counted on four transects: Transect 1: start x=90.0, y=17.0; end x=90.0, y=9.0 200 valves Transect 2: start x=92.0, y=15.0; end x=92.0, y=8.0 337 valves Transect 3: start x=94.0, y=16.0; end x=94.0, y=9.0 555 valves Transect 4: start x=96.0, y=16.0; end x=96.0, y=13.0 600 valves Observations on individual taxa: - In the counts I kept separated the morphotype corresponding to Navicula minima Grunow in Vaan Heurck (Figs 128-142 in Wetzel et al. 2015) from "typical" Sellaphora saugerresii (e.g., Figs 112-127 in Wetzel et al. 2015). In this count: Sellaphora saugerresii "typical" = 64 valves Morphotype Navicula minima = 13 - In the counts I kept separated dwarf forms of Achnanthidium exiguum var. constrictum. These differ by small size, subrostrate ends, and extremely weak constriction, and might represent a separate taxon. In this count: Achnanthidium exiguum var. constrictum = 23 valves Achnanthidium exiguum var. constrictum DWARF = 3 - In the counts I kept separated typical specimens of Nitzschia palea from a short, subcapitate morphotype. In this count: Nitzschia palea SHORT SUBCAPITATE = 7 valves Nitzschia palea = 0
 

 


 
Counts version 3.2 - last revision 6/17/2017
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