Based on the information provided in the video by Milliken Fishing, it appears that forward-facing sonar, such as LiveScope technology, has not had a significant negative impact on fish populations, including bass, crappie, and catfish. The data and studies mentioned, including those from various Department of Natural Resources and the Arkansas Fish and Game Commission, suggest that there hasn't been a noticeable decrease in fish populations or a dramatic change in tournament fishing results attributable to the use of forward-facing sonar.
Additionally, the video highlights that anglers using forward-facing sonar did not harvest a significantly higher number of fish compared to those without the technology. It's also mentioned that crappie, for example, reproduce quickly and that larger crappie are not as crucial to the population dynamics as smaller, more reproductive individuals.
In the context of bass fishing, the use of forward-facing sonar allows anglers to locate and target fish more effectively, but according to the studies and data referenced, it has not led to overfishing or a decline in bass populations. As a pro bass fishing guide, it's important to stay informed about the latest research and technology impacts on fisheries to ensure sustainable fishing practices. If you have any specific concerns or need more information about how sonar technology might affect your local fisheries, it would be wise to check with your local Department of Natural Resources or fisheries management agency for the most current data and guidelines.