It might be too early to really tell, but it appears that the ban on herring trawling is having a positive impact:
Fishermen say they are seeing more herring returning to the Gulf of Maine, where a ban on trawlers that drag nets through the water has been in effect through the summer.
"There has been lots of sea life, and it kind of amazes me," Daniel Fill, captain of a Rockland-based fishing boat, told the Portland Press Herald. "I have seen fish where I haven't seen them for years. They're in nice, big bunches for miles."
Other purse seine herring fishermen, whale-watching companies and tuna fishermen are reporting similar observations. They also say they see more sea birds, dolphins, tuna and seals, which feed on herring.