Dictionary of Ichthyology  

lift-net = a net of various size and form laid on the water bottom or suspended, sometimes baited or lighted, and lifted out of the water when fish swim over it. Some are hand-operated, others suspended from as many as four boats or from cantilever structures on a bank or boat. See also basnig, two-boat lift net, three-boat lift net, four-boat lift net.

Bengali lift-net from Wikimedia Commons: http://commons.wikimedia.org/wiki/File:Large_lift_net_(In_Bengali-Veshal_jal).jpg

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