a fish weir or seafood pitfall is actually a human-made construction created of material, reeds, or wood blogs positioned inside the channel of a stream or at side of a tidal lagoon designed to record seafood while they swimming together with the existing. Fish barriers are included in many small-scale fisheries around the world now,… Continue a ler a fish weir or seafood pitfall is actually a human-made construction created of material, reeds, or wood blogs positioned inside the channel of a stream or at side of a tidal lagoon designed to record seafood while they swimming together with the existing.