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

GSN81089 DT1 A, official count

count method: 600 Valves (300 Cells)
slide: GSN81089 DT1 A
    from subsample: GSN81089 DT1
        from sample: GSN81089

View results for COUNT EVENT MEASURED ATTRIBUTE(S): 1

   valves (cema_id: 83025 ma_id: 2)

count_event_id: 17639
taxonomy: NAWQA 1997-Starts
person: William Cody ... person_id=127

started_on: 6/17/2002 12:00:00 AM
finished_on: 6/17/2002 12:00:00 AM
estimated_hours: 0.000000000
microscope_optivar_lens_id: 141
scan_length_mm: 25500.000000000
source_data_form: NA
source_table: dtm source_table_id: 11914
institution_address_id: 45

added on: 10/26/2005 6:07:00 PM, added by: dbo
modified on: 1/5/2010 3:44:00 PM, modified by: dbo

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: gsn81089 Count start end of scribe line centered 72.25x97.5, Ni dissipata centered end 114.0 , 16.5mm Row 2 74.0x97.4 Diploneis top center end count 106.4, 9.0mm. total dist. counted = 25.5mm. Slide contains numerous smaller cells of Nav. circumtexta Slide was counted twice, I was not satisfied with the ID in the first count esp the Navicula cryptocephala types which appear diverse; Marina P. looked at these for me and suggested the Nav. crypo veneta var 1 & 2 . The lineolae appear coarser than noted in the literature for these Naviculas.

Counts version 3.3 - last revision 2/16/2021
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