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ices-eg / wg_WGEEL

Joint EIFAAC/ICES/GFCM Working Group on Eels
http://ices.dk/community/groups/Pages/WGEEL.aspx
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Anguillicola #196

Closed cedricbriandgithub closed 2 years ago

cedricbriandgithub commented 2 years ago

We'll need to include anguillicola in next year datacall presence absence mean prevalence. create new types

=> one of the problems is that prevalence will have to be constrained to % or boolean => makes sense as it is per emu. Is that wise ? => Do you really want per emu. How do you calculate a percentage per emu where what you can really have is an index of sites (points) where you measure the prevalence and presence ?

elfunesto commented 2 years ago

for the 1st point: we can manage with triggers for the 2nd: not sure, depends on the questions. I think we will want soon more precise values => yes I think too... This is related to Laurent comment on the series.... for the 3rd: agree with you, I would tend to think that it should be better suited in biometry data, related to a monitoring site. =>But then it means you have to fill in all information about the site. Maybe the sheet t_biometry_other_bit, with an additional x and y

Cyclolumpus commented 2 years ago

The objective is to draw a map that may highlight places where it is absent/low prevalence (i.e. coastal areas, limits of the distribution). Yes, you are right: EMU doesn't really make sense. If it's included in biometry, this means it will become a "series" right?

cedricbriandgithub commented 2 years ago

Yes currently we report series for biometries but there is a table that is intended to store biometry data. But I'm not too fond of trying to squeeze in some data in some of the tables if they don't have the right format. So for me these data should be a x y Year type (prevalence anguillicola , occurence anguillicola, and there we can squeeze in more types) value habitat type (T,C, F, MO) EMU (to check when points are outside the emu somewhere in bengladesh that things went wrong) geometry (point) derived from coordinates

The main difference between this table and the other is that it is not EMU based.

elfunesto commented 2 years ago

Just another thought, we are speaking of anguillicola, but we will probably have similar requests in the years to come for contaminants (see recommendation of SG5 about quality), and with contaminants, first PCB, AHP, but then the list of pollutants is likely to change over time with emerging contaminants. We might take this into consideration to build a solution flexible enough

cedricbriandgithub commented 2 years ago

Yes using type allows to introduce anything we want.