Well first off, I would notify a parent and let them know what your brother did.
Second off, don't let your brother hit you with things.
And third, if he's being rude, you have the right to ignore him.
The differences in the wild and hatcheries make it so the different salmon adapt differently and have different traits.
If salmon are split up into different habitats, one being in the wild and one being in captivity, they will eventually have different adaptations from each other and their offspring will develop traits that are better suited for their environment.
Wild salmon and salmon that are raised in captivity are going to be very different from each other. The salmon in captivity do not have to actively hunt for their food, be wary of certain predators, or may not want to reproduce.
Taking these factors into account, it is very possible that the salmon raised in captivity will have reduced reproductive success compared to the salmon that thrive in the wild. Along with this, they would most likely have many genetic differences from each other and other traits that better adapt to their living situations.
Direct democracy and pure democracy are the same thing. All decisions are based and voted on by the people.
The mass media is sometimes referred to as the "fourth branch of the government" since it has a significant influence on the legislative, judicial, and executive branches of the government. The mass media's responsibility of keeping the people informed is a great and essential contribution to a democratic government.