A dredge consists of a metal mesh bag held open by a frame. This type of gear is dragged along the seafloor to collect bottom-dwelling organism; shellfish are particularly targeted. Some dredges have teeth or rakes that penetrate the sediment and remove large infauna. Multiple dredges can be use simultaneously via a connecting beam system.
For more detailed information, please visit the FAO Fisheries and Aquaculture Department <a href="http://www.fao.org/fishery/geartype/104/en" target="_blank">dredges</a> web page.
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