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.
The builiding of the first steam locomotive train.
1b.) To ensure that the religious beliefs and traditions would survive. The Vedas served as a powerful tool for the leaders, or rulers, of the people.
2a.) The social structure of Aryan society was based on the caste system.
2b.) The fourth caste was added to include native people. The caste became determined by birth. A class of workers below the Sundars evolved and were called the untouchables, who the dirty work and had no contract with the higher classes.
