• Question: can you summarise your latest experiment please?

    Asked by boomshot to Maxime on 11 Nov 2019.
    • Photo: Maxime Savatier

      Maxime Savatier answered on 11 Nov 2019: last edited 11 Nov 2019 6:59 pm

      I will try to summarize my latest work:)
      Water flowing to the sea from a river, or a spring tends to float on the surface of the sea, because it contains less salt (thus less dense). As a result, bay with river or spring coming to them can have two layers, one fresher on the top, and one more saline at the bottom. This is called stratification, and is generally variable depending on tides, freshwater fluxes, winds… Sometimes, it takes a week or more for this river or spring water to be fully mixed with the rest of the sea sometimes a few days. When a bay is stratified, its nutrients content and type of organism are different compared to mixed situations. This is especially important in places like the west of ireland where people are growing mussels, oyster or salmons in these waters. To know when and how much a bay is stratified help a lot to understand how things will change for them.
      So i created a new method to describe the effect of stratification for bays across the seasons, which i hope will be able to help to understand why some years are more difficult than others for people there, and what can be done about this.

Comments

  • Photo: 🍰 46map

    🍰 46map commented on :

    that sounds cool

  • Photo: Ann

    Ann commented on :

    We have a new piece of equipment in the lab called an ICP. This instrument can test for iron, aluminium, copper, zinc and many other elements. But before we can use this instrument it has to be tested or validated to see that it is working properly. So I get a water sample and analyse the sample for iron so i know the amount of iron in the sample to begin with. (I might get another lab to test the sample for iron or I might analyse it myself using a different piece of equipment here). Then I add a little bit more iron to the sample – a known concentration & then I analyse the sample on the new ICP. I then look at the new iron result & compare it to the original iron result to see how accurate the ICP instrument is at detecting iron. So if my sample contains 100ug/l iron the insturment must give a result somewhere between 95 – 105 ug/l for it to be ok to use the instrument. I hiope this makes sense!

  • Photo: boomshot

    boomshot commented on :

    Awesome 👏