Final answer:
The involvement of Indigenous peoples in the fishing industry was adversely affected by the denial of their treaty rights, overfishing leading to the collapse of fisheries, and conflicts with miners and land speculators.
Step-by-step explanation:
The involvement of Indigenous peoples in the fishing industry was adversely affected by a number of factors, including the denial of their treaty rights, overfishing leading to the collapse of fisheries, and conflicts with miners and land speculators. From the 1960s to the 1980s, there were political and legal battles over whether Indigenous peoples had the right to fish in their usual and accustomed places, as promised in numerous treaties. Many tribes fought for their treaty rights and eventually won the right to fish based on their treaties with the United States.