Fish-delousing underwater laser (2018) [video]

(youtube.com)

27 points | by walterbell 9 hours ago

8 comments

  • internet_points 2 hours ago
    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...

  • igorkraw 3 hours ago
    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

    • globalise83 2 hours ago
      That's interesting! They might also evolve a tendency towards moving to the left flank of the fish.
  • xeonmc 3 hours ago
    Can they be mounted on sharks?
  • jniles 6 hours ago
    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.

  • Grosvenor 9 hours ago
    This is exactly the sort of thing I got into tech for. Real world, no bullshit solutions to problems.

    I love it.

  • chriscjcj 6 hours ago
    What are the falling pellets?
  • nomilk 4 hours ago
    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.
    • dang 3 hours ago
      Stingray removed from the title above. Thanks!
  • walterbell 9 hours ago
    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.