True, but a protocol could also be a distinguishing feature of an Event. If the protocol is just the trawl this would still be problematic, but if there is a difference in protocols with respect to the taxonomic scopes, that could be sufficient to separate them. If this still doesn't feel right, the alternative (targetTaxonomicScope:"Myctophidae | Paralepididae", targetLifeStageScope:"all | larvae and juvenile" ) is not terribly satisfying either, because it doesn't explicitly bind the combinations across the two terms. To try to overcome this shortcoming, one could add an explanation in dwc:samplingProtocol or dwc:eventRemarks.

On Fri, May 20, 2022 at 3:03 PM Yi Ming Gan <ymgan@naturalsciences.be> wrote:

Oh apologies, perhaps I was not clear about it. It was supposed to be 1 single trawl that target both myctophids and paralpidids together with the same net at the same place, same time, same depth. They were studying fish aggregations.

The description of Sampling Event core says "The category of information pertaining to an action that occurs at some location during some time."

I feel that it could be a little misleading making this into multiple sampling events ...

From: tdwg-humboldt <tdwg-humboldt-bounces@lists.tdwg.org> on behalf of John Wieczorek <tuco@berkeley.edu>
Sent: 20 May 2022 19:14
To: Humboldt Core TG <tdwg-humboldt@lists.tdwg.org>
Subject: Re: [tdwg-humboldt] How to fill in targetTaxonomicScope and targetLifeStageScope for targeted taxa with different life stage from the same event?

One easy way would be to make two sampling events that are distinguished by their targets but otherwise having all the same characteristics.

On Fri, May 20, 2022 at 12:42 PM Yi Ming Gan <ymgan@naturalsciences.be> wrote:

Hi all

I am working on the dataset from Antarctic OBIS for the Humboldt Documentation. I encounter an issue:

For all of the events (at that location, depth, with the sampling protocol and effort), the scientists were targeting:

- myctophids - all life stages

- paralepidids - larvae and juvenile

How can I fill in the “targetTaxonomicScope" and “targetLifeStageScope" for each sampling event?

Thanks a lot!!

Bests

Ming

PS: Yani, I hope you are recovering well! Take care!

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