As a result of humans' increased use of the water in the Colorado River, "fisheries in the upper Gulf of California have been hurt."
This is because the Colorado River is currently being used for irrigation of farms, generation of hydroelectric power, and supply of potable water to the urban region in the surrounding areas.
This constant use of the Colorado River has greatly affected the marine lives inside it, as it forces them to migrate due to the forced direction of the water.
It has also reduced other organisms that can enhance the lives of the fisheries inside it.
Hence, in this case, it is concluded that the intense use of the Colorado River has affected the marine organisms in the river, including the fish.
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