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A grab dredge. Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value.
A trailing suction hopper dredger[1] (TSHD) is a type of ship capable of maintaining navigable waterways, deepening the maritime canals that are threatened to become silted, constructing new land elsewhere or replacing sand eroded by storms or wave action on the beaches. This is made possible by large, powerful pumps and engines able to suck ...
A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large, multi-story machines built in the first half of the 1900s. Small suction machines are currently marketed as "gold dredges" to individuals seeking gold: just offshore from the beach of ...
Fishing dredge. A fishing dredge, also known as a scallop dredge or oyster dredge, is a kind of dredge which is towed along the bottom of the sea by a fishing boat in order to collect a targeted edible bottom-dwelling species. The gear is used to fish for scallops, oysters and other species of clams, crabs, and sea cucumber. [1]
Dredging (cooking) Dredging is a cooking technique used to coat wet or moist foods with a dry ingredient prior to cooking. Put most simply, dredging involves little more than pulling or rolling the wet food through the dry material to provide an even coating. The technique is particularly common with breaded foods, such as fried fish or chicken ...
Queen of the Netherlands (ship) Queen of the Netherlands. (ship) Queen of the Netherlands is a Dutch trailing suction hopper dredger ship constructed in 1998. After lengthening in 2009, she was the largest and most powerful dredger in the world. The vessel has been used in high-profile salvage and dredging operations including the investigation ...
Ocean dredging can negatively affect benthic ecosystems. [7] When dredging equipment is moved along the seafloor, habitat-forming epifauna is damaged or removed. [8] As emergent corals, sponges, and seagrasses are damaged there is less habitat complexity for juvenile fishes to find protection in. [8] Dredging also removes the sand waves in which juvenile Atlantic cod settle.
Andrew Ellicott. First established as the Ellicott Machine Company in 1885, Ellicott Dredges is one of the oldest manufacturers in the world that specializes in the design and building of dredges and dredge machinery. Throughout its 125 years of existence, Ellicott has built over 1,500 dredges and exported to over 80 countries.