A fishing weir, fish weir, fishgarth[1] or kiddle[2] is an obstruction placed in tidal waters, or wholly or partially across a river, to direct the passage of, or trap fish.

Weirs help us to establish those baselines and then detect changes in populations over time. They also help fisheries managers evaluate and adjust their management actions, reconstruct past salmon abundances, and forecast future salmon returns.

Jan 26, 2018 · A fish weir or fish trap is a human-made structure built of stone, reeds, or wooden posts placed within the channel of a stream or at the edge of a tidal lagoon intended to capture fish as they swim along with the current.

Jan 7, 2022 · The word “weir” means different things to different people. In engineering, it’s a kind of dam that allows water to flow over the top while creating a higher pool of water upstream. In historic terms, a weir is a fish trap made of logs, wooden stakes, or …

Fishing weirs are structures historically used by Native Americans and other hunter-gatherer societies to catch fish in streams, lagoons, and other water bodies. An entry from Lewis and Clark’s journals from 1805 described a fence-like structure built by the Shoshone tribe on the Lemhi River in Idaho.

Dec 11, 2017 · When the tides flow into and out of the strait, depending on the rise or fall of the land, simple weirs can provide traps to catch ocean creatures. Two simple lines of stones effectively cut fish off from the deep water as the tide rolls out. It is not hard to extract principles of operation from these examples.

Jan 9, 2023 · As humans evolved, so did their fishing techniques, and one of the earliest of these is the fish weir. Though they have taken many forms across the world and over millennia, the fundamental function of a weir is universal: it is a structure in a stream or at the edge of a lagoon designed to trap fish.

In archeological literature, the name Boylston Street Fishweir refers to ancient fishing structures first discovered in 1913, buried 29 to 40 feet (8.8 to 12.2 m) below Boylston Street in Boston, Massachusetts.

Sep 24, 2014 · A picture can be worth a thousand thoughts though, so I was happy to see these two shots of a massive weir photographed ca. 1885 on the Puyallup Indian Reservation (map) near Tacoma, southern Puget Sound, Washington.

1 day ago · This weir, used by the Gitxsan Nation, showcases intricate construction methods and a deep understanding of fish behavior. The Kispiox River Weir is a hidden treasure worth exploring. Elwha River Weir Located in Washington, the Elwha River Weir has a unique history. Following the removal of the Elwha Dam, efforts to restore the river's ...