In the northeast, a weir is a big circular fish trap made from poles and netting that is used to trap herring that come into the bays to spawn. It is an ancient method, and in recent years, the remains of such weirs have been found near Boston that were built by the native Americans thousands of years ago. Some years ago, I narrated a film called FENCE IN THE WATER. It was produced by Peg Dice at the University of Michigan. Bodacious Films, she called her company.