1. Eight of the numerous Menai Strait fish weirs are now Scheduled monuments. 2. The "'Mnjikaning Fish Weirs "'are one of the oldest human developments in Canada. 3. ;Gorad Friars Bach Fish Weir :, SH615777 ( Scheduled monument ). 4. Two islands are joined by a causeway, and each has a fish weir . 5. The fish weir lies at the edge of the Penmon Historic Landscape Area. 6. Zigzag causeways in some areas are interpreted as being fish weirs . 7. The Quapaw dug large ditches, and constructed fish weirs to manage their food supply. 8. Llanddona fish weir is a V-shaped trap, typically used when trapping fish in tidal waters. 9. The fish weirs and ponds produced abundant, storable, and possibly sustainable yields of animal protein, 10. This fish weir was described as the earliest known large-scale engineering effort in North America.
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