Lice are a huge problem. If this solution works, it must not be implemented that widely. The news is full of solutions like physical washing, thermic treatment (basically hot baths), loads of chemicals, also huge amounts of chlorine poured into surrounding rivers because the fish escape the farms and spread lice. The lice are really adaptive. There are more and more lice due to higher sea temperatures[0] and increased resistance to treatments.
[0] https://www-nrk-no.translate.goog/nordland/hoye-temperaturer...
Recently covered by SciShow https://www.youtube.com/watch?v=xWciW1y18O0
In the beginning of the PhD, to help with rent I contracted to help develop computer vision algorithms in this field, only PoCs, never got very far.
And interesting thing is that the lice apparently evolve super fast, including getting translucent and resistant against poison
That's interesting! They might also evolve a tendency towards moving to the left flank of the fish.
Reminds me of the evolution of fish that prey on scales of other fish to have two distinct types with the mouth on the right or left:
https://en.wikipedia.org/wiki/Perissodus_microlepis
Depending on which type is more frequent the other is more successful because the prey is more cautions on the other side...
edit: spelling
Fish are known to swim in both directions.
There are plenty of other problems with keeping fish in concentration camps.
Industrial approaches applied to living beings are just nasty, period.
Can they be mounted on sharks?
If the laser is powerfull enough to kill sea-lice then how does it avoid blinding the fish or giving them retina burn?
As long as the fish can still find food that might not matter in a farm environment
Is that safe? What if someone falls into the tank?
The hyphen makes all the difference here.
I would love to see more data on this. Their site makes some bold claims, but it is hard to know how to quantify the effectiveness of the laser treatment, How many units do you need per X fish? After how many hours/ days/ weeks does it take to reduce the parasites to X levels?
Not critiquing the technology, just hard to visualize as someone with no knowledge or experience in the field.
It would be more interesting to see what the camera of the system sees.
This is exactly the sort of thing I got into tech for. Real world, no bullshit solutions to problems.
I love it.
What are the falling pellets?
It concentrates fish on one spot
Food.
oh man dont I just love lasers, just saying laser makes me feel good, more laser and dont I hate parisites and vermin, laser, zap more zap, less horrible blood suckers, and vermin got a small hobby farm....wont use poisons...so I know, probably not going to get rat lazers, but laser powered rat detectors before it gets all kinetic on there dirty rat asses...,snacks for the ravens
Title was a little confusing; Stringray is just the name of the laser, which is being used to remove sea lice from salmon. Very cool.
Stingray removed from the title above. Thanks!
Only available in Norway, https://www.stingray.no/delousing-with-laser/?lang=en
> technology combines stereo machine vision, advanced software and high-precision laser to target and kill parasites that infect farmed fish.