Fishing is probably very close for many, even people who do not particularly like to fish with pleasure go with the company of fishermen just to nature. But there are people who every spare minute go to the river with a fishing rod. Such was my father, a former Muscovite who had no time to go even to nature, but when he retired and moved to our province then fishing became his passion. As soon as it gets warmer to look for it you need in nature, and the best gift is a good fishing rod.
Fishing skills of course are very useful for survival. Forests are now very scarce for the game. If as a child wandering through the nearest to the city forest could be found in the forest of a wild boar or even a moose, now you can not even see signs of their existence. And there will be so many people who want to eat meat that there is not enough for everyone. So fish will be one of the most popular delicacies. At least for the first time, until everyone’s caught. But the fishing rod you do not catch a lot, especially those cool fishing rods and bells and whistles for catching just will not, and on every bank will stand a lover of fish.
But fish is a living creature and there are plants in the world that act on them. Such methods of extraction are not particularly humane, but are quite suitable when you really need to survive. They work in standing ponds or where you can block in order to detain fish. Some plants paralyze or even poison fish. In the course are different parts of plants, but as a rule, not particularly ceremonial and just rubbing grass throw it into the water. This method is best in warm water, so it is used more often in the tropics.
There is one problem, if you use this method in a closed body of water, then most likely you just destroy the fish very quickly and leave yourself without food in the future, so you need to think with your head when and how to use it.
But this method is good in sea backwaters, perhaps made by you for fish. At high tides the fish will be replenished and thus give you prey in small portions.
And yet, all these plants are poisonous to the cold-blooded, but it does not mean that you can use them. As a rule, they are dangerous for humans as well. So use them only for fish, but not for yourself.