Dictionary of Ichthyology  

castnet = a method of catching fish in shallow waters by throwing a circular net over them; the net opens in the air to a diameter of about 2 metres and sinks rapidly because of weights attached to its margin. The rim of the net has a draw rope that enables it to be closed. Also called throw net or trow net.

A. Tofangdar, Sarbaz River, Baluchestan, Iran (no fish caught!). Photograph by Brian W. Coad....more

Canadian Museum of Nature