A dragnet that is towed behind a boat to collect specimens.
〔生〕拖网（拖在船后以采集标本）
Example sentencesExamples
Two types of net were used; an egg and larval net and a tow net designed to be mounted on an egg and larval net frame.
Using thermometers, pH kits, meter sticks and plankton tow nets, the group collects data from their site.
Marked fish were recaptured by beach seine and tow net along the beaches of southern Hood Canal.
While towing the net about three miles offshore near Driftwood Bay, the tow net revealed light contamination and trace amounts of a substance appearing as oil.
Net avoidance is a fancy way to say that krill are fast enough and wily enough to avoid the tow nets.