Killing undead fish underwater












3












$begingroup$


To kill zombies on land, you usually have to either chop their head off, burn them down or use purification magic (if it is a fantasy world).



But underwater you can't kill the zombies the same way as you do on land. Fire doesn't burn underwater and swinging a sword to cut a fish's head is nearly impossible. Harpooning them will work on larger fishes but ineffective on smaller fishes.



Details:




  1. The fish are around 20 centimeter in length, just think of piranhas


  2. The undead are 'dead' organisms controlled by a zombie virus (like the one on The Walking Dead, just that it only infects animals)


  3. The question is set in a medieval world. How the populace and the government react would isn't important, what I am asking is how can someone kill those zombie fish (assume you have unlimited materials that are available on the medieval age)?







science-based medieval combat zombies







share|improve this question











$endgroup$








  • 6




    $begingroup$
    Net them, lift out of water, burn in air.
    $endgroup$
    – StephenG
    6 hours ago










  • $begingroup$
    I think @StephenG 's answer is the best one so far. You should write it up before someone beats you to it. Oh, add a shredder.
    $endgroup$
    – Cyn
    4 hours ago












  • $begingroup$
    @Cyn I was thinking the OP might have reasons for not considering this a reasonable approach and waiting for comment to that effect. I'd like to give the OP more time for that (and I'm fine with it if someone else wants to run with this idea).
    $endgroup$
    – StephenG
    3 hours ago










  • $begingroup$
    Ad: these limited superintelligence wild dolphin born n bred in Israel now comes with a deadly laser, get yours today batteries not included.
    $endgroup$
    – user6760
    1 hour ago
















3












$begingroup$


To kill zombies on land, you usually have to either chop their head off, burn them down or use purification magic (if it is a fantasy world).



But underwater you can't kill the zombies the same way as you do on land. Fire doesn't burn underwater and swinging a sword to cut a fish's head is nearly impossible. Harpooning them will work on larger fishes but ineffective on smaller fishes.



Details:




  1. The fish are around 20 centimeter in length, just think of piranhas


  2. The undead are 'dead' organisms controlled by a zombie virus (like the one on The Walking Dead, just that it only infects animals)


  3. The question is set in a medieval world. How the populace and the government react would isn't important, what I am asking is how can someone kill those zombie fish (assume you have unlimited materials that are available on the medieval age)?







science-based medieval combat zombies







share|improve this question











$endgroup$








  • 6




    $begingroup$
    Net them, lift out of water, burn in air.
    $endgroup$
    – StephenG
    6 hours ago










  • $begingroup$
    I think @StephenG 's answer is the best one so far. You should write it up before someone beats you to it. Oh, add a shredder.
    $endgroup$
    – Cyn
    4 hours ago












  • $begingroup$
    @Cyn I was thinking the OP might have reasons for not considering this a reasonable approach and waiting for comment to that effect. I'd like to give the OP more time for that (and I'm fine with it if someone else wants to run with this idea).
    $endgroup$
    – StephenG
    3 hours ago










  • $begingroup$
    Ad: these limited superintelligence wild dolphin born n bred in Israel now comes with a deadly laser, get yours today batteries not included.
    $endgroup$
    – user6760
    1 hour ago














3












3








3





$begingroup$


To kill zombies on land, you usually have to either chop their head off, burn them down or use purification magic (if it is a fantasy world).



But underwater you can't kill the zombies the same way as you do on land. Fire doesn't burn underwater and swinging a sword to cut a fish's head is nearly impossible. Harpooning them will work on larger fishes but ineffective on smaller fishes.



Details:




  1. The fish are around 20 centimeter in length, just think of piranhas


  2. The undead are 'dead' organisms controlled by a zombie virus (like the one on The Walking Dead, just that it only infects animals)


  3. The question is set in a medieval world. How the populace and the government react would isn't important, what I am asking is how can someone kill those zombie fish (assume you have unlimited materials that are available on the medieval age)?







science-based medieval combat zombies







share|improve this question











$endgroup$




To kill zombies on land, you usually have to either chop their head off, burn them down or use purification magic (if it is a fantasy world).



But underwater you can't kill the zombies the same way as you do on land. Fire doesn't burn underwater and swinging a sword to cut a fish's head is nearly impossible. Harpooning them will work on larger fishes but ineffective on smaller fishes.



Details:




  1. The fish are around 20 centimeter in length, just think of piranhas


  2. The undead are 'dead' organisms controlled by a zombie virus (like the one on The Walking Dead, just that it only infects animals)


  3. The question is set in a medieval world. How the populace and the government react would isn't important, what I am asking is how can someone kill those zombie fish (assume you have unlimited materials that are available on the medieval age)?







science-based medieval combat zombies




science-based medieval combat zombies






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 4 hours ago









Cyn

12.5k12759




12.5k12759










asked 6 hours ago









A random person no.0A random person no.0

876




876








  • 6




    $begingroup$
    Net them, lift out of water, burn in air.
    $endgroup$
    – StephenG
    6 hours ago










  • $begingroup$
    I think @StephenG 's answer is the best one so far. You should write it up before someone beats you to it. Oh, add a shredder.
    $endgroup$
    – Cyn
    4 hours ago












  • $begingroup$
    @Cyn I was thinking the OP might have reasons for not considering this a reasonable approach and waiting for comment to that effect. I'd like to give the OP more time for that (and I'm fine with it if someone else wants to run with this idea).
    $endgroup$
    – StephenG
    3 hours ago










  • $begingroup$
    Ad: these limited superintelligence wild dolphin born n bred in Israel now comes with a deadly laser, get yours today batteries not included.
    $endgroup$
    – user6760
    1 hour ago














  • 6




    $begingroup$
    Net them, lift out of water, burn in air.
    $endgroup$
    – StephenG
    6 hours ago










  • $begingroup$
    I think @StephenG 's answer is the best one so far. You should write it up before someone beats you to it. Oh, add a shredder.
    $endgroup$
    – Cyn
    4 hours ago












  • $begingroup$
    @Cyn I was thinking the OP might have reasons for not considering this a reasonable approach and waiting for comment to that effect. I'd like to give the OP more time for that (and I'm fine with it if someone else wants to run with this idea).
    $endgroup$
    – StephenG
    3 hours ago










  • $begingroup$
    Ad: these limited superintelligence wild dolphin born n bred in Israel now comes with a deadly laser, get yours today batteries not included.
    $endgroup$
    – user6760
    1 hour ago








6




6




$begingroup$
Net them, lift out of water, burn in air.
$endgroup$
– StephenG
6 hours ago




$begingroup$
Net them, lift out of water, burn in air.
$endgroup$
– StephenG
6 hours ago












$begingroup$
I think @StephenG 's answer is the best one so far. You should write it up before someone beats you to it. Oh, add a shredder.
$endgroup$
– Cyn
4 hours ago






$begingroup$
I think @StephenG 's answer is the best one so far. You should write it up before someone beats you to it. Oh, add a shredder.
$endgroup$
– Cyn
4 hours ago














$begingroup$
@Cyn I was thinking the OP might have reasons for not considering this a reasonable approach and waiting for comment to that effect. I'd like to give the OP more time for that (and I'm fine with it if someone else wants to run with this idea).
$endgroup$
– StephenG
3 hours ago




$begingroup$
@Cyn I was thinking the OP might have reasons for not considering this a reasonable approach and waiting for comment to that effect. I'd like to give the OP more time for that (and I'm fine with it if someone else wants to run with this idea).
$endgroup$
– StephenG
3 hours ago












$begingroup$
Ad: these limited superintelligence wild dolphin born n bred in Israel now comes with a deadly laser, get yours today batteries not included.
$endgroup$
– user6760
1 hour ago




$begingroup$
Ad: these limited superintelligence wild dolphin born n bred in Israel now comes with a deadly laser, get yours today batteries not included.
$endgroup$
– user6760
1 hour ago










4 Answers
4






active

oldest

votes


















2












$begingroup$

Sawfish



https://www.youtube.com/watch?v=uPnTCSE_KW8



Swinging a sword to cut a fish's head is nearly impossible for you. But sawfish have been doing just that since the dinosaur days. This sawfish chops a fish into shreds in 2 seconds. I had to slow down the video to get this screenshot.



Your people need those badass, zombie fish chopping, cartilaginous saw-thrashing sawfish.






share|improve this answer









$endgroup$





















    2












    $begingroup$

    As @StevenG said in the comments, the easiest and most effective way to kill a fish is a net. It doesn't even have to be a zombie fish, although those would take a few steps.



    While a fishing boat/net combo would be able to net the fish for disposal in other means - Like a bonfire, or a fish guillotine or some other method, nets can also be used in a much more passive manner. You can string a net across the inlet of a harbor, or across a river, or some other chokepoint. Simply by leaving the net there you can keep the zombie fish out of the area and keep it safe. Sure, you'd have to do regular checkups on the nets, but you could string a temporary one up behind it, too.



    Removing the fish from water makes them significantly less of a threat, too. Sure, the bite from a zombie fish is still a zombie bite. Sure, fish could propell themselves by thrashing (And there's even some fish that can live outside of water for some time, and have adapted to moving outside of it), but it's not fast, and it's limited. Put them in a box, put a lid on top, and you - and they - are covered.






    share|improve this answer









    $endgroup$













    • $begingroup$
      Yep,net them,dry them,burn them. If the brain itself need only be severely damaged poisons or high voltage currents of electricity would work well too. Otherwise you could use weaponized sonar,just do the equivalent of dropping bait in to lure them and then blast them with 250 decibel pulses at close range to turn there brains to soup. Zombies are too dumb to swim away and thus will die very easily to this method. Since this is medieval that (barring lightning rods or magic) limits use of electricity. But if black powder exists you could make underwater mines blown up from the surface.
      $endgroup$
      – Jeremy Barrett
      2 mins ago





















    1












    $begingroup$


    Fire doesn't burn underwater




    not exactly true. There are many chemicals which react really energetically with water and under the sea there is plenty of water.



    Take some strong acid or base, locally disperse it and let it corrode the zombie fishes.



    Or, if you really want fire, take an alkaline metal and coat with it a spear, protecting it with a water soluble film. As soon as the film is washed away, the reaction between the alkaline metal and the water will be really spectacular.






    share|improve this answer









    $endgroup$





















      0












      $begingroup$

      Can the undead fish be baited? If yes, perhaps an adapted fishing hook rigged with some sort of a contraption that e.g. releases a spring on contact and drives a spike through the fish's head? I don't think such purely mechanical things are beyond medieval capabilities.






      share|improve this answer









      $endgroup$














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        4 Answers
        4






        active

        oldest

        votes








        4 Answers
        4






        active

        oldest

        votes









        active

        oldest

        votes






        active

        oldest

        votes









        2












        $begingroup$

        Sawfish



        https://www.youtube.com/watch?v=uPnTCSE_KW8



        Swinging a sword to cut a fish's head is nearly impossible for you. But sawfish have been doing just that since the dinosaur days. This sawfish chops a fish into shreds in 2 seconds. I had to slow down the video to get this screenshot.



        Your people need those badass, zombie fish chopping, cartilaginous saw-thrashing sawfish.






        share|improve this answer









        $endgroup$


















          2












          $begingroup$

          Sawfish



          https://www.youtube.com/watch?v=uPnTCSE_KW8



          Swinging a sword to cut a fish's head is nearly impossible for you. But sawfish have been doing just that since the dinosaur days. This sawfish chops a fish into shreds in 2 seconds. I had to slow down the video to get this screenshot.



          Your people need those badass, zombie fish chopping, cartilaginous saw-thrashing sawfish.






          share|improve this answer









          $endgroup$
















            2












            2








            2





            $begingroup$

            Sawfish



            https://www.youtube.com/watch?v=uPnTCSE_KW8



            Swinging a sword to cut a fish's head is nearly impossible for you. But sawfish have been doing just that since the dinosaur days. This sawfish chops a fish into shreds in 2 seconds. I had to slow down the video to get this screenshot.



            Your people need those badass, zombie fish chopping, cartilaginous saw-thrashing sawfish.






            share|improve this answer









            $endgroup$



            Sawfish



            https://www.youtube.com/watch?v=uPnTCSE_KW8



            Swinging a sword to cut a fish's head is nearly impossible for you. But sawfish have been doing just that since the dinosaur days. This sawfish chops a fish into shreds in 2 seconds. I had to slow down the video to get this screenshot.



            Your people need those badass, zombie fish chopping, cartilaginous saw-thrashing sawfish.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered 5 hours ago









            WillkWillk

            119k28225499




            119k28225499























                2












                $begingroup$

                As @StevenG said in the comments, the easiest and most effective way to kill a fish is a net. It doesn't even have to be a zombie fish, although those would take a few steps.



                While a fishing boat/net combo would be able to net the fish for disposal in other means - Like a bonfire, or a fish guillotine or some other method, nets can also be used in a much more passive manner. You can string a net across the inlet of a harbor, or across a river, or some other chokepoint. Simply by leaving the net there you can keep the zombie fish out of the area and keep it safe. Sure, you'd have to do regular checkups on the nets, but you could string a temporary one up behind it, too.



                Removing the fish from water makes them significantly less of a threat, too. Sure, the bite from a zombie fish is still a zombie bite. Sure, fish could propell themselves by thrashing (And there's even some fish that can live outside of water for some time, and have adapted to moving outside of it), but it's not fast, and it's limited. Put them in a box, put a lid on top, and you - and they - are covered.






                share|improve this answer









                $endgroup$













                • $begingroup$
                  Yep,net them,dry them,burn them. If the brain itself need only be severely damaged poisons or high voltage currents of electricity would work well too. Otherwise you could use weaponized sonar,just do the equivalent of dropping bait in to lure them and then blast them with 250 decibel pulses at close range to turn there brains to soup. Zombies are too dumb to swim away and thus will die very easily to this method. Since this is medieval that (barring lightning rods or magic) limits use of electricity. But if black powder exists you could make underwater mines blown up from the surface.
                  $endgroup$
                  – Jeremy Barrett
                  2 mins ago


















                2












                $begingroup$

                As @StevenG said in the comments, the easiest and most effective way to kill a fish is a net. It doesn't even have to be a zombie fish, although those would take a few steps.



                While a fishing boat/net combo would be able to net the fish for disposal in other means - Like a bonfire, or a fish guillotine or some other method, nets can also be used in a much more passive manner. You can string a net across the inlet of a harbor, or across a river, or some other chokepoint. Simply by leaving the net there you can keep the zombie fish out of the area and keep it safe. Sure, you'd have to do regular checkups on the nets, but you could string a temporary one up behind it, too.



                Removing the fish from water makes them significantly less of a threat, too. Sure, the bite from a zombie fish is still a zombie bite. Sure, fish could propell themselves by thrashing (And there's even some fish that can live outside of water for some time, and have adapted to moving outside of it), but it's not fast, and it's limited. Put them in a box, put a lid on top, and you - and they - are covered.






                share|improve this answer









                $endgroup$













                • $begingroup$
                  Yep,net them,dry them,burn them. If the brain itself need only be severely damaged poisons or high voltage currents of electricity would work well too. Otherwise you could use weaponized sonar,just do the equivalent of dropping bait in to lure them and then blast them with 250 decibel pulses at close range to turn there brains to soup. Zombies are too dumb to swim away and thus will die very easily to this method. Since this is medieval that (barring lightning rods or magic) limits use of electricity. But if black powder exists you could make underwater mines blown up from the surface.
                  $endgroup$
                  – Jeremy Barrett
                  2 mins ago
















                2












                2








                2





                $begingroup$

                As @StevenG said in the comments, the easiest and most effective way to kill a fish is a net. It doesn't even have to be a zombie fish, although those would take a few steps.



                While a fishing boat/net combo would be able to net the fish for disposal in other means - Like a bonfire, or a fish guillotine or some other method, nets can also be used in a much more passive manner. You can string a net across the inlet of a harbor, or across a river, or some other chokepoint. Simply by leaving the net there you can keep the zombie fish out of the area and keep it safe. Sure, you'd have to do regular checkups on the nets, but you could string a temporary one up behind it, too.



                Removing the fish from water makes them significantly less of a threat, too. Sure, the bite from a zombie fish is still a zombie bite. Sure, fish could propell themselves by thrashing (And there's even some fish that can live outside of water for some time, and have adapted to moving outside of it), but it's not fast, and it's limited. Put them in a box, put a lid on top, and you - and they - are covered.






                share|improve this answer









                $endgroup$



                As @StevenG said in the comments, the easiest and most effective way to kill a fish is a net. It doesn't even have to be a zombie fish, although those would take a few steps.



                While a fishing boat/net combo would be able to net the fish for disposal in other means - Like a bonfire, or a fish guillotine or some other method, nets can also be used in a much more passive manner. You can string a net across the inlet of a harbor, or across a river, or some other chokepoint. Simply by leaving the net there you can keep the zombie fish out of the area and keep it safe. Sure, you'd have to do regular checkups on the nets, but you could string a temporary one up behind it, too.



                Removing the fish from water makes them significantly less of a threat, too. Sure, the bite from a zombie fish is still a zombie bite. Sure, fish could propell themselves by thrashing (And there's even some fish that can live outside of water for some time, and have adapted to moving outside of it), but it's not fast, and it's limited. Put them in a box, put a lid on top, and you - and they - are covered.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 3 hours ago









                AndonAndon

                8,45132355




                8,45132355












                • $begingroup$
                  Yep,net them,dry them,burn them. If the brain itself need only be severely damaged poisons or high voltage currents of electricity would work well too. Otherwise you could use weaponized sonar,just do the equivalent of dropping bait in to lure them and then blast them with 250 decibel pulses at close range to turn there brains to soup. Zombies are too dumb to swim away and thus will die very easily to this method. Since this is medieval that (barring lightning rods or magic) limits use of electricity. But if black powder exists you could make underwater mines blown up from the surface.
                  $endgroup$
                  – Jeremy Barrett
                  2 mins ago




















                • $begingroup$
                  Yep,net them,dry them,burn them. If the brain itself need only be severely damaged poisons or high voltage currents of electricity would work well too. Otherwise you could use weaponized sonar,just do the equivalent of dropping bait in to lure them and then blast them with 250 decibel pulses at close range to turn there brains to soup. Zombies are too dumb to swim away and thus will die very easily to this method. Since this is medieval that (barring lightning rods or magic) limits use of electricity. But if black powder exists you could make underwater mines blown up from the surface.
                  $endgroup$
                  – Jeremy Barrett
                  2 mins ago


















                $begingroup$
                Yep,net them,dry them,burn them. If the brain itself need only be severely damaged poisons or high voltage currents of electricity would work well too. Otherwise you could use weaponized sonar,just do the equivalent of dropping bait in to lure them and then blast them with 250 decibel pulses at close range to turn there brains to soup. Zombies are too dumb to swim away and thus will die very easily to this method. Since this is medieval that (barring lightning rods or magic) limits use of electricity. But if black powder exists you could make underwater mines blown up from the surface.
                $endgroup$
                – Jeremy Barrett
                2 mins ago






                $begingroup$
                Yep,net them,dry them,burn them. If the brain itself need only be severely damaged poisons or high voltage currents of electricity would work well too. Otherwise you could use weaponized sonar,just do the equivalent of dropping bait in to lure them and then blast them with 250 decibel pulses at close range to turn there brains to soup. Zombies are too dumb to swim away and thus will die very easily to this method. Since this is medieval that (barring lightning rods or magic) limits use of electricity. But if black powder exists you could make underwater mines blown up from the surface.
                $endgroup$
                – Jeremy Barrett
                2 mins ago













                1












                $begingroup$


                Fire doesn't burn underwater




                not exactly true. There are many chemicals which react really energetically with water and under the sea there is plenty of water.



                Take some strong acid or base, locally disperse it and let it corrode the zombie fishes.



                Or, if you really want fire, take an alkaline metal and coat with it a spear, protecting it with a water soluble film. As soon as the film is washed away, the reaction between the alkaline metal and the water will be really spectacular.






                share|improve this answer









                $endgroup$


















                  1












                  $begingroup$


                  Fire doesn't burn underwater




                  not exactly true. There are many chemicals which react really energetically with water and under the sea there is plenty of water.



                  Take some strong acid or base, locally disperse it and let it corrode the zombie fishes.



                  Or, if you really want fire, take an alkaline metal and coat with it a spear, protecting it with a water soluble film. As soon as the film is washed away, the reaction between the alkaline metal and the water will be really spectacular.






                  share|improve this answer









                  $endgroup$
















                    1












                    1








                    1





                    $begingroup$


                    Fire doesn't burn underwater




                    not exactly true. There are many chemicals which react really energetically with water and under the sea there is plenty of water.



                    Take some strong acid or base, locally disperse it and let it corrode the zombie fishes.



                    Or, if you really want fire, take an alkaline metal and coat with it a spear, protecting it with a water soluble film. As soon as the film is washed away, the reaction between the alkaline metal and the water will be really spectacular.






                    share|improve this answer









                    $endgroup$




                    Fire doesn't burn underwater




                    not exactly true. There are many chemicals which react really energetically with water and under the sea there is plenty of water.



                    Take some strong acid or base, locally disperse it and let it corrode the zombie fishes.



                    Or, if you really want fire, take an alkaline metal and coat with it a spear, protecting it with a water soluble film. As soon as the film is washed away, the reaction between the alkaline metal and the water will be really spectacular.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered 3 hours ago









                    L.Dutch♦L.Dutch

                    93.1k29214447




                    93.1k29214447























                        0












                        $begingroup$

                        Can the undead fish be baited? If yes, perhaps an adapted fishing hook rigged with some sort of a contraption that e.g. releases a spring on contact and drives a spike through the fish's head? I don't think such purely mechanical things are beyond medieval capabilities.






                        share|improve this answer









                        $endgroup$


















                          0












                          $begingroup$

                          Can the undead fish be baited? If yes, perhaps an adapted fishing hook rigged with some sort of a contraption that e.g. releases a spring on contact and drives a spike through the fish's head? I don't think such purely mechanical things are beyond medieval capabilities.






                          share|improve this answer









                          $endgroup$
















                            0












                            0








                            0





                            $begingroup$

                            Can the undead fish be baited? If yes, perhaps an adapted fishing hook rigged with some sort of a contraption that e.g. releases a spring on contact and drives a spike through the fish's head? I don't think such purely mechanical things are beyond medieval capabilities.






                            share|improve this answer









                            $endgroup$



                            Can the undead fish be baited? If yes, perhaps an adapted fishing hook rigged with some sort of a contraption that e.g. releases a spring on contact and drives a spike through the fish's head? I don't think such purely mechanical things are beyond medieval capabilities.







                            share|improve this answer












                            share|improve this answer



                            share|improve this answer










                            answered 4 hours ago









                            Nikolay ErshovNikolay Ershov

                            36618




                            36618






























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