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  1. Embed this notice
    goatsarah (goatsarah@thegoatery.dyndns.org)'s status on Monday, 22-May-2023 22:16:04 JST goatsarah goatsarah

    Seen a bunch of people sharing this one idea that the Iberian orcas are attacking sailing boats because one of them was previously “traumatised”.

    I think it needs to be said that this is a fringe theory and widely regarded by lots of people studying this emergent behaviour as implausible.

    For a start, orcas swim at 3 times the speed a sailboat travels at. As far as they’re concerned, they are essentially stationary objects. Secondly, orcas weigh more than sailboats, and if they wanted to sink them, they could, easily, but they aren’t doing that.

    What the orcas are doing is biting rudders. The sinkings that have happened have been secondary to that: water ingress caused by damage to the rudder stock.

    The leading theory is that this started as hunting practice. The Iberian orcas eat tuna, and they hunt them by biting their fins off so they can’t swim away. Sailboat rudders superficially resemble tuna fins, and so are good practice.

    The behaviour started with a few young males about 3-4 years ago. It’s now spread and around 15 of them are doing it. It’s nearly all young males.

    It appears that what started out as practice has now become the orca equivalent of that atsehole on TikTok walking into people’s houses: they appear to be doing it because their mates do it, and they think it’s funny.

    Sadly inaction by, mostly Spanish authorities is leading to people increasingly taking things into their own hands. Sailboat owners share information on orca locations and are increasingly travelling in convoys, WWII style. Initially putting the boat into reverse on engine seemed to work, but they’ve got wise to that, and so an arms race is developing. The current technique which seems to work pretty much all the time is to throw firecrackers into the water.

    There starting to move on to other types of boats too. Small fishing boats are increasingly being attacked.

    This is not going to end well. Either they will finally kill someone, which will likely result in a cull, or they’re going to fuck with the wrong boat. In a few months the tuna migrate north towards Normandy. The orcas follow them. If they start attacking French fishing boats, I can’t imagine those guys taking any shit. Sail boats are pleasure craft and our response has been to try and avoid them, but that’s not going to be the case with fishing boats, and the French are not known for calm and gentle responses to things that threaten their livelihoods.

    Watch this space, I guess. The hope is that this behaviour is a fad that will go out of fashion. If it doesn’t, it’s going to end up in deaths; possibly humans, definitely orcas.

    In conversation Monday, 22-May-2023 22:16:04 JST from thegoatery.dyndns.org permalink

    Attachments

    1. No result found on File_thumbnail lookup.
      http://males.It/
    • Embed this notice
      FeralRobots (feralrobots@mastodon.social)'s status on Monday, 22-May-2023 22:42:40 JST FeralRobots FeralRobots
      in reply to

      @goatsarah the leading & fringe theories do seem to share the notion that however it started, the teenagers are doing it for fun, as a fad. I'll admit I thought it was funny for a moment when I first heard about it - but like you I then remembered that if humans start to think orcas are dangerous, that's gonna be nothing but bad for orcas, maybe everywhere.

      & between this story & the increasing observation of 'shark hunts' ordinary people are beginning to remember orcas are apex predators.

      In conversation Monday, 22-May-2023 22:42:40 JST permalink
    • Embed this notice
      goatsarah (goatsarah@thegoatery.dyndns.org)'s status on Monday, 22-May-2023 22:42:40 JST goatsarah goatsarah
      in reply to
      • FeralRobots

      @FeralRobots I think the point when it really hit home for me was reading about the family involved in one of the earlier singings. They were over a hundred miles off shore, in the Bay of Biscay, in their life raft, begging people on the radio not to rescue them in case they brought the orcas back.

      One thing people are doing is sticking to shallow water, near the coast. If they go for you there, without a rudder you will likely be driven onto the rocks and drowned. Someone is going to die, sooner or later.

      I place the blame for this squarely on the Spanish maritime authorities. They have an attitude of reckless indifference. Most of the attacks happen in their waters, and their response has been to tell people that they could be prosecuted for defending themselves.

      This has led to people exchanging information in invite-only WhatsApp groups and the like. Where to get what are effectively depth charges, how to use them, etc. Occasionally someone pops up and is all "don't hurt the murederfish! It's illegal under Spanish law!"

      There is then the usual explanation that the safety of life at sea regulations emphasise first and foremost the need to save human life, and that people in international waters, or the territorial waters of Morocco, Portugal, France and the United Kingdom (attacks have happened in all these places) don't give a flying fuck what Spanish law says.

      This could and should have been nipped in the bud. A targeted cull of 2-3 individuals in 2019 would have stopped it. Now there is a very high chance that this will result in the extinction of the Iberian Orca.

      In conversation Monday, 22-May-2023 22:42:40 JST permalink
    • Embed this notice
      Graydon (graydon@canada.masto.host)'s status on Tuesday, 23-May-2023 01:13:22 JST Graydon Graydon
      in reply to

      @goatsarah Here's hoping someone figures out how to make rudders taste indescribably bad to orcas.

      (Thank you! Appreciate someone throwing some facts into the subject.)

      In conversation Tuesday, 23-May-2023 01:13:22 JST permalink
      goatsarah likes this.
    • Embed this notice
      goatsarah (goatsarah@thegoatery.dyndns.org)'s status on Tuesday, 23-May-2023 09:06:24 JST goatsarah goatsarah
      in reply to
      • David Penington
      @DavidPenington A Swan 36 is practically antediluvian. Modern boats are lighter and faster. Mine weighs about half as much as an orca.
      In conversation Tuesday, 23-May-2023 09:06:24 JST permalink
    • Embed this notice
      David Penington (davidpenington@mastodon.au)'s status on Tuesday, 23-May-2023 09:06:25 JST David Penington David Penington
      in reply to

      @goatsarah
      A typical cruising yacht like the Swan 36 weighs about the same as a male Orca
      https://en.m.wikipedia.org/wiki/Swan_36

      In conversation Tuesday, 23-May-2023 09:06:25 JST permalink

      Attachments

      1. Domain not in remote thumbnail source whitelist: upload.wikimedia.org
        Swan 36
        Swan 36 is a fin keeled, fiberglass constructed masthead sloop first manufactured by Nautor's Swan in 1967. The first Swan sailing yacht ever produced by the firm, it was designed to serve recreationally but also compete in the One Ton Cup. Production continued until 1971, with a total of 90 Swan 36 boats being built.The 36 was designed by Sparkman & Stephens who were the number one designers in the world at the time and also the designers of the first 775 Swan yachts built by Nautor. The design is sometimes confused with the 1988 Swan 36 designed by Germán Frers, which is now usually referred to as the Swan 36-2 to differentiate it from the unrelated 1967 Sparkman & Stephens Swan 36 design. Design Its main dimensions are length overall LOA 10,9 m, Length of waterline LWL 7,77 Beam 2,95 m, and displacement of 7000 kg, of which 3600 kg is ballast. Its racing success is very much based on the designer’s well timed decision to use a separate fin keel and rudder as opposed to the traditional full keel arrangement (a so-called split lateral plane). This reduced the wetted surface area of the hull and...
    • Embed this notice
      neville park (nev@flipping.rocks)'s status on Tuesday, 23-May-2023 18:26:58 JST neville park neville park
      in reply to

      @goatsarah certainly not the first time a bunch of asshole young dudes doing JUST A PRANK, BRO have ruined everything for everyone

      In conversation Tuesday, 23-May-2023 18:26:58 JST permalink
      goatsarah likes this.
    • Embed this notice
      goatsarah (goatsarah@thegoatery.dyndns.org)'s status on Tuesday, 23-May-2023 18:31:20 JST goatsarah goatsarah
      in reply to
      • CooperJ

      @CooperJ this has been going on for about 4 years, and various such things have been tried (slowly reversing, different sounds, etc), but they always seem to adapt.

      The authorities won’t help. They seem utterly uninterested, and it is likely going to take human deaths to get them to act, or maybe not even that. There are some marine researchers trying to look into it, but it’s kinda small scale.

      If the first people they kill are leisure boaters, then there will likely be a bigger push for action. If the first people they kill are fishermen, then I suspect we’ll just start seeing orcas washing up ashore with bullets in them.

      In conversation Tuesday, 23-May-2023 18:31:20 JST permalink
    • Embed this notice
      CooperJ (cooperj@mastodon.nz)'s status on Tuesday, 23-May-2023 18:31:21 JST CooperJ CooperJ
      in reply to

      @goatsarah Surely people can be a bit more inventive rather than resorting to a cull and creating an antagonistic relationship between Orca and people. Orca interact with people every day here and they're never aggressive or destructive. But we did have a leopard seal that liked biting boats we learned to work around her. Maybe find something that gets in their way or otherwise puts them off without causing them pain.

      In conversation Tuesday, 23-May-2023 18:31:21 JST permalink
    • Embed this notice
      goatsarah (goatsarah@thegoatery.dyndns.org)'s status on Tuesday, 23-May-2023 22:50:43 JST goatsarah goatsarah
      in reply to
      • (((2024 YR4)))
      • CooperJ
      @klefstadmyr @CooperJ Yes
      In conversation Tuesday, 23-May-2023 22:50:43 JST permalink
    • Embed this notice
      (((2024 YR4))) (klefstadmyr@social.vivaldi.net)'s status on Tuesday, 23-May-2023 22:50:44 JST (((2024 YR4))) (((2024 YR4)))
      in reply to
      • CooperJ

      @goatsarah @CooperJ Have someone tried painting the rudders in a zebra pattern? Just my 5 cents.

      In conversation Tuesday, 23-May-2023 22:50:44 JST permalink

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