As states along the Delaware River struggle to stem steady declines in shad and herring numbers, New Jersey is moving to sharply reduce limits on fishing of three affected species. The daily limit on alewife and blueback herring would be reduced from 35 to 10 per person, and the limit on American shad from six to three, under a rule proposed by the Department of Environmental Protection\’s Fish and Game Council. A public hearing in Robbinsville is scheduled for Sept. 8.