**Title:** Taxon Names and Identifiers 
**Moderator:** @davidhassell 
**Moderator Status Review [last updated: 2019-12-02]:** Converted from accepted 
Trac ticket 99 to GitHub issue.
**Requirement Summary:** 
**Technical Proposal Summary:** Add support for better handling of biological 
taxa data
**Benefits:** 
**Status Quo:** 
**Detailed Proposal:**

### Complete proposal

The complete proposal is for a stand-alone new section (`6.1.2`), that is 
contained in pull request #TBD

This issue was resolved as accepted in the old Trac system about a year ago, at 
the time of the transition to GitHUb, but didn't get converted to a pull 
request. This issue addresses this.

The previous discussion and evolution of this issue may be read in full at  
https://cf-trac.llnl.gov/trac/ticket/99

The Trac ticket's original contributors are still happy with the proposal in 
it's pull request form, and therefore if there are no further comments (which 
would be welcome, of course! - but please read the history in Trac first), this 
issue can therefore be accepted after the usual three weeks.

### Consequences for Standard Names

The following new Standard Names are required to describe the label variables 
and to support the bacterial data request that inspired the creation of this 
ticket.

`taxon_name`: The human-readable label for the taxon such as Calanus 
finmarchicus. The label should be registered in either WoRMS or ITIS and 
spelled exactly as registered.

`taxon_identifier`: The machine-readable identifier for the taxon registration 
in either WoRMS (the AphiaID) or ITIS (the taxonomic serial number or TSN), 
including namespace. The namespace strings are 'aphia:' or 'tsn:'. For example, 
Calanus finmarchicus is encoded as either 'aphia:104464' or 'tsn:85272'. For 
the marine domain WoRMS has more complete coverage and so aphia Ids are 
preferred.

`colony_forming_unit_number_concentration_of_taxon_in_sea_water`: "Colony 
Forming Unit" means an estimate of the viable bacterial or fungal numbers 
determined by counting colonies grown from a sample. "Number concentration" 
means the number of particles or other specified objects per unit volume. 
"Taxon" means an organism named in the taxon_name and taxon_identifier 
variables.

`number_concentration_of_taxon_in_sea_water`: "Number concentration" means the 
number of particles or other specified objects per unit volume. "Taxon" means 
an organism named in the taxon_name and taxon_identifier variables. 

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