If you have to kill a fish, there's a few ways to do it humanely.
1. Cut of it's head very quickly
Most people wouldn't like doing this, but it's actually probably the most painless for the fish.
2. Buy some clove oil
Clove oil is an anesthetic for fish that puts them to sleep. After they are asleep you can kill them however you wish.
3. Go to the Vet
You'd probably need a very good reason to get them to do it for you. I've never tried this so I don't know.
Other ways that I don't recommend
1. Flushing
The fish will die slowly in the sewer pipe
2. Alka seltzer
I've tried this and the fish look like they are under a lot of stress and take a long time to die
3. Freezing
People claim it's not painful, but I don't see how being wrapped in a paper towel and put in freezing cold to die slowly over 30 minutes can be a pleasant experience for a fish.
they have weapons like nets and harpoons and fishing poles. nets are to catch normally a larger fish or a school of fish. sometimes they catch unintentional catches like a dolphins and whatnot. harpoons are for killing whales. i am totally against this but i think in Japan or china they kill a lot. And finally, the plain old-fashioned way of catching a fish is by a fishing pole. fishing poles are for catching one fish at a time. HOPE THIS HELPS YOU!
As humanely as possible. The standard way is to lay the fish on it's side on a table or cleaning board. Then smack it sharply on the head with a heavy object (a short billy club called a "priest" is commonly used). Done quickly, the fish does not suffer - death is instantaneous.
Mercury is one heavy metal that affects mostly coastal and farmed fish. There is enough mercury in a common thermometer to kill tons of fish.
Mercury is also the name of a planet.
Pollution, people, nets, fish and lack of water
Our pollution is the one thing that kills more fish than anything else.
Either with a fishing rod or using trawlers or fishing nets. Have a look at the TV series Deadliest Catch on virgin 1 and you'll get the idea, that is only for crabs but oh well!
They don't, the can't breath out of water!!
Contamination of the water with toxic compounds, pathogen microorganisms, an abnormal temperature, explosions in water, lack of oxygen, lack of appropriate foods, etc.
Killer Whales.
Prey thats easy to hunt or kill
No they do not. They consume their prey as soon as they kill them. They may leave a carcass lying around for a day or two after the kill but they do not bury their kill.
Jaguar or Panthera onca is the biggest cat. They kill their prey by piercing the neck or skull in one quick bite.
by killing with its with its tusk
A prey is what a predator hunts down to kill and eat. A prey's predator is what eats it. For example: A gazelle is the prey of a leopard (predator).
Yes, they are very vicious and will eat various small mammals.
What kind of question is that?!?!?! Become a fisher and find out for yourself
Yes. They have to kill their prey to eat.
The Anaconda is a constrictor, it will strike at its prey, pulling the prey into its coils to overpower and kill it.
Anacondas kill their prey by wrapping around them and squeezing them to death.
no, they do the same. they constrict their prey.
No, they are not compatible and each would attempt to kill and devour the other. Fishers have been known to attack animals larger then themselves.
They hunt their prey, kill the prey, then eat the prey
all snakes that are not venomous, for example boas and pythons, will kill their prey by constriction.
Raccoons use their sharp teeth and claws to kill prey.
I think that they are vegitarians and mainly eat bamboo so is unlikely for them to kill other animals as their prey/food.
A leech does not have predator and prey relationships, so it does not kill its prey. A leech is a parasite. It simply attaches itself to a host.