To further complicate the situation, it's extremely hard for scientists to figure out exact numbers on fish populations, and uncertainty often leads to more turmoil. In a 2014 survey on butterfish, the results were far too inconclusive, and led to a temporary ban on the fishing of butterfish. After actually talking to fisherman, however, the scientists realized they hadn't accounted for butterfish migration in their survey, leading them to develop a model that calculated for movement, which eventually gave way to conclusive results and a lift on the butterfish ban. But even studies like these are temperamental. At this point, science is simply moving too slow to keep up with fishing's needs.