Clams filter the water and check whether the water is polluted or clean
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Re: Clams filter the water and check whether the water is polluted or clean
#2Re: Clams filter the water and check whether the water is polluted or clean
#3Minimally invasive to the fresh water muscles, parallel redundancy, human plus laboratory confirmation.
Like using rats to find landmines or dogs to find contraband without the long training times.
Re: Clams filter the water and check whether the water is polluted or clean
#4Minimally invasive to the fresh water muscles, parallel redundancy, human plus laboratory confirmation. Like using rats to find landmines or dogs to find contraband without the long training times.
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Re: Clams filter the water and check whether the water is polluted or clean
#5How many clams are needed? Where do you get them?
Re: Clams filter the water and check whether the water is polluted or clean
#6How many clams are needed? Where do you get them?
From the article: 24 at a time, for a duty cycle of 3 months.
> We have three measuring devices in the company and eight clams in each. In total, we “employ” 200 individuals during the year.
This other article[1] says they get them from a lake, and are returned to the same lake after three months. They are marked so the scientists won’t pick up the same clam twice.
1: https://www.boredpanda.com/clams-measure-water-quality-polan...
Re: Clams filter the water and check whether the water is polluted or clean
#7How many clams are needed? Where do you get them?
3 teams of 8 clams (mussels)
If the water quality is normal, the clams open and close randomly.
If all 8 clams close, something is off with the water and prompts more investigation.
They get the clams from a nearby lake, and somewhat comfortingly, they retire them back to the lake when they've done a tour of duty. They're even marked so they don't reuse the same clams!
Nice to hear that they don't just euthanize them even if they are just clams. Guess I'm getting soft in my old age
Re: Clams filter the water and check whether the water is polluted or clean
#8not only Poznan but there are multiple polish towns which have clams on duty - eg. Warsaw, Rzeszów
Re: Clams filter the water and check whether the water is polluted or clean
#9This has been known for a long time. I have often heard it suggested that places do this. Glad to see it actually being done.
I guarantee that if they did it around here, some knuckleheads would row out to the clam beds at night, and harvest them all.
Re: Clams filter the water and check whether the water is polluted or clean
#10How many clams are needed? Where do you get them?
3 teams of 8 clams (mussels) If the water quality is normal, the clams open and close randomly. If all 8 clams close, something is off with the water and prompts more investigation. They get the clams from a nearby lake, and somewhat comfortingly, they retire them back to the lake when they've done a tour of duty. They're even marked so they don't reuse the same clams! Nice to hear that they don't just euthanize them…
It's not a sign of softness that you take a (minimal) effort to save a lifeform (that was useful to you). It's basic humanity, for lack of a better term (animality?).