Some great points above. Make the fines serious, lose your boat and gear maybe, for both commercial and sport fishers. Serious penalties will need little enforcement once the word gets out. Slowly transition to limited passive trapping allowing the stocks to stabilize and the sport fishing industry to expand. I really think the economic benefits of this approach is better than status quo. Many of the benefits are directly in the communities around the lake.
Love the passion for the fishery in all the posts.