Dictionary of Ichthyology  

Vigneron-Dahl trawl = an otter trawl with long cables that frighten fish toward the net and otter boards far from the net keeping the net wide open.

From Umali, A. F. 1950. Guide to the classification of fishing gear in the Philippines. Research Report 17, Fish and Wildlife Service, U.S. Department of the Interior, Washington.

Canadian Museum of Nature